CVE-2024-26633 (GCVE-0-2024-26633)
Vulnerability from cvelistv5 – Published: 2024-03-18 10:07 – Updated: 2026-05-23 15:36
VLAI
EPSS
VEX
Title
ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()
syzbot pointed out [1] that NEXTHDR_FRAGMENT handling is broken.
Reading frag_off can only be done if we pulled enough bytes
to skb->head. Currently we might access garbage.
[1]
BUG: KMSAN: uninit-value in ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0
ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0
ipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]
ip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432
__netdev_start_xmit include/linux/netdevice.h:4940 [inline]
netdev_start_xmit include/linux/netdevice.h:4954 [inline]
xmit_one net/core/dev.c:3548 [inline]
dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564
__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349
dev_queue_xmit include/linux/netdevice.h:3134 [inline]
neigh_connected_output+0x569/0x660 net/core/neighbour.c:1592
neigh_output include/net/neighbour.h:542 [inline]
ip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137
ip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222
NF_HOOK_COND include/linux/netfilter.h:303 [inline]
ip6_output+0x323/0x610 net/ipv6/ip6_output.c:243
dst_output include/net/dst.h:451 [inline]
ip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155
ip6_send_skb net/ipv6/ip6_output.c:1952 [inline]
ip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972
rawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582
rawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920
inet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584
___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638
__sys_sendmsg net/socket.c:2667 [inline]
__do_sys_sendmsg net/socket.c:2676 [inline]
__se_sys_sendmsg net/socket.c:2674 [inline]
__x64_sys_sendmsg+0x307/0x490 net/socket.c:2674
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
Uninit was created at:
slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768
slab_alloc_node mm/slub.c:3478 [inline]
__kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517
__do_kmalloc_node mm/slab_common.c:1006 [inline]
__kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c:1027
kmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582
pskb_expand_head+0x226/0x1a00 net/core/skbuff.c:2098
__pskb_pull_tail+0x13b/0x2310 net/core/skbuff.c:2655
pskb_may_pull_reason include/linux/skbuff.h:2673 [inline]
pskb_may_pull include/linux/skbuff.h:2681 [inline]
ip6_tnl_parse_tlv_enc_lim+0x901/0xbb0 net/ipv6/ip6_tunnel.c:408
ipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]
ip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432
__netdev_start_xmit include/linux/netdevice.h:4940 [inline]
netdev_start_xmit include/linux/netdevice.h:4954 [inline]
xmit_one net/core/dev.c:3548 [inline]
dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564
__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349
dev_queue_xmit include/linux/netdevice.h:3134 [inline]
neigh_connected_output+0x569/0x660 net/core/neighbour.c:1592
neigh_output include/net/neighbour.h:542 [inline]
ip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137
ip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222
NF_HOOK_COND include/linux/netfilter.h:303 [inline]
ip6_output+0x323/0x610 net/ipv6/ip6_output.c:243
dst_output include/net/dst.h:451 [inline]
ip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155
ip6_send_skb net/ipv6/ip6_output.c:1952 [inline]
ip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972
rawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582
rawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920
inet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584
___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638
__sys_sendmsg net/socket.c:2667 [inline]
__do_sys_sendms
---truncated---
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-18 19:01 UTC
Assigner
References
11 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
fbfa743a9d2a0ffa24251764f10afc13eb21e739 , < 135414f300c5db995e2a2f3bf0f455de9d014aee
(git)
Affected: fbfa743a9d2a0ffa24251764f10afc13eb21e739 , < 3f15ba3dc14e6ee002ea01b4faddc3d49200377c (git) Affected: fbfa743a9d2a0ffa24251764f10afc13eb21e739 , < da23bd709b46168f7dfc36055801011222b076cd (git) Affected: fbfa743a9d2a0ffa24251764f10afc13eb21e739 , < 4329426cf6b8e22b798db2331c7ef1dd2a9c748d (git) Affected: fbfa743a9d2a0ffa24251764f10afc13eb21e739 , < 62a1fedeb14c7ac0947ef33fadbabd35ed2400a2 (git) Affected: fbfa743a9d2a0ffa24251764f10afc13eb21e739 , < 687c5d52fe53e602e76826dbd4d7af412747e183 (git) Affected: fbfa743a9d2a0ffa24251764f10afc13eb21e739 , < ba8d904c274268b18ef3dc11d3ca7b24a96cb087 (git) Affected: fbfa743a9d2a0ffa24251764f10afc13eb21e739 , < d375b98e0248980681e5e56b712026174d617198 (git) Affected: a6f6bb6bc04a5f88a31f47a6123d3fbf5ee8d694 (git) Affected: 72bbf335e7aad09c88c50dbdd238f4faabd12174 (git) Affected: decccc92ee0a978a1c268b5df16824cb6384ed3c (git) Affected: d3d9b59ab32160e3cc4edcf7e5fa7cecb53a7d25 (git) Affected: d397f7035d2c754781bbe93b07b94d8cd898620c (git) Affected: 41e07a7e01d951cfd4c9a7dac90c921269d89513 (git) Affected: a7fe4e5d06338e1a82b1977eca37400951f99730 (git) Affected: 3.2.87 , < 3.3 (semver) Affected: 3.10.106 , < 3.11 (semver) Affected: 3.12.71 , < 3.13 (semver) Affected: 3.16.42 , < 3.17 (semver) Affected: 3.18.49 , < 3.19 (semver) Affected: 4.4.50 , < 4.5 (semver) Affected: 4.9.11 , < 4.10 (semver) |
guessed | |
| Linux | Linux |
Affected:
4.10
Unaffected: 0 , < 4.10 (semver) Unaffected: 4.19.306 , ≤ 4.19.* (semver) Unaffected: 5.4.268 , ≤ 5.4.* (semver) Unaffected: 5.10.209 , ≤ 5.10.* (semver) Unaffected: 5.15.148 , ≤ 5.15.* (semver) Unaffected: 6.1.75 , ≤ 6.1.* (semver) Unaffected: 6.6.14 , ≤ 6.6.* (semver) Unaffected: 6.7.2 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix) |
guessed |
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()\n\nsyzbot pointed out [1] that NEXTHDR_FRAGMENT handling is broken.\n\nReading frag_off can only be done if we pulled enough bytes\nto skb-\u003ehead. Currently we might access garbage.\n\n[1]\nBUG: KMSAN: uninit-value in ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0\nip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0\nipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]\nip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432\n__netdev_start_xmit include/linux/netdevice.h:4940 [inline]\nnetdev_start_xmit include/linux/netdevice.h:4954 [inline]\nxmit_one net/core/dev.c:3548 [inline]\ndev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564\n__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349\ndev_queue_xmit include/linux/netdevice.h:3134 [inline]\nneigh_connected_output+0x569/0x660 net/core/neighbour.c:1592\nneigh_output include/net/neighbour.h:542 [inline]\nip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137\nip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222\nNF_HOOK_COND include/linux/netfilter.h:303 [inline]\nip6_output+0x323/0x610 net/ipv6/ip6_output.c:243\ndst_output include/net/dst.h:451 [inline]\nip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155\nip6_send_skb net/ipv6/ip6_output.c:1952 [inline]\nip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972\nrawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582\nrawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920\ninet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847\nsock_sendmsg_nosec net/socket.c:730 [inline]\n__sock_sendmsg net/socket.c:745 [inline]\n____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\n___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\n__sys_sendmsg net/socket.c:2667 [inline]\n__do_sys_sendmsg net/socket.c:2676 [inline]\n__se_sys_sendmsg net/socket.c:2674 [inline]\n__x64_sys_sendmsg+0x307/0x490 net/socket.c:2674\ndo_syscall_x64 arch/x86/entry/common.c:52 [inline]\ndo_syscall_64+0x44/0x110 arch/x86/entry/common.c:83\nentry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nUninit was created at:\nslab_post_alloc_hook+0x129/0xa70 mm/slab.h:768\nslab_alloc_node mm/slub.c:3478 [inline]\n__kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517\n__do_kmalloc_node mm/slab_common.c:1006 [inline]\n__kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c:1027\nkmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582\npskb_expand_head+0x226/0x1a00 net/core/skbuff.c:2098\n__pskb_pull_tail+0x13b/0x2310 net/core/skbuff.c:2655\npskb_may_pull_reason include/linux/skbuff.h:2673 [inline]\npskb_may_pull include/linux/skbuff.h:2681 [inline]\nip6_tnl_parse_tlv_enc_lim+0x901/0xbb0 net/ipv6/ip6_tunnel.c:408\nipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]\nip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432\n__netdev_start_xmit include/linux/netdevice.h:4940 [inline]\nnetdev_start_xmit include/linux/netdevice.h:4954 [inline]\nxmit_one net/core/dev.c:3548 [inline]\ndev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564\n__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349\ndev_queue_xmit include/linux/netdevice.h:3134 [inline]\nneigh_connected_output+0x569/0x660 net/core/neighbour.c:1592\nneigh_output include/net/neighbour.h:542 [inline]\nip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137\nip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222\nNF_HOOK_COND include/linux/netfilter.h:303 [inline]\nip6_output+0x323/0x610 net/ipv6/ip6_output.c:243\ndst_output include/net/dst.h:451 [inline]\nip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155\nip6_send_skb net/ipv6/ip6_output.c:1952 [inline]\nip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972\nrawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582\nrawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920\ninet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847\nsock_sendmsg_nosec net/socket.c:730 [inline]\n__sock_sendmsg net/socket.c:745 [inline]\n____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\n___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\n__sys_sendmsg net/socket.c:2667 [inline]\n__do_sys_sendms\n---truncated---"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T15:36:13.795Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/135414f300c5db995e2a2f3bf0f455de9d014aee"
},
{
"url": "https://git.kernel.org/stable/c/3f15ba3dc14e6ee002ea01b4faddc3d49200377c"
},
{
"url": "https://git.kernel.org/stable/c/da23bd709b46168f7dfc36055801011222b076cd"
},
{
"url": "https://git.kernel.org/stable/c/4329426cf6b8e22b798db2331c7ef1dd2a9c748d"
},
{
"url": "https://git.kernel.org/stable/c/62a1fedeb14c7ac0947ef33fadbabd35ed2400a2"
},
{
"url": "https://git.kernel.org/stable/c/687c5d52fe53e602e76826dbd4d7af412747e183"
},
{
"url": "https://git.kernel.org/stable/c/ba8d904c274268b18ef3dc11d3ca7b24a96cb087"
},
{
"url": "https://git.kernel.org/stable/c/d375b98e0248980681e5e56b712026174d617198"
}
],
"title": "ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-26633",
"datePublished": "2024-03-18T10:07:49.468Z",
"dateReserved": "2024-02-19T14:20:24.136Z",
"dateUpdated": "2026-05-23T15:36:13.795Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2024-26633",
"date": "2026-09-16",
"epss": "0.0033",
"percentile": "0.26181"
},
"fkie_nvd": {
"descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()\\n\\nsyzbot pointed out [1] that NEXTHDR_FRAGMENT handling is broken.\\n\\nReading frag_off can only be done if we pulled enough bytes\\nto skb-\u003ehead. Currently we might access garbage.\\n\\n[1]\\nBUG: KMSAN: uninit-value in ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0\\nip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0\\nipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]\\nip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432\\n__netdev_start_xmit include/linux/netdevice.h:4940 [inline]\\nnetdev_start_xmit include/linux/netdevice.h:4954 [inline]\\nxmit_one net/core/dev.c:3548 [inline]\\ndev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564\\n__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349\\ndev_queue_xmit include/linux/netdevice.h:3134 [inline]\\nneigh_connected_output+0x569/0x660 net/core/neighbour.c:1592\\nneigh_output include/net/neighbour.h:542 [inline]\\nip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137\\nip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222\\nNF_HOOK_COND include/linux/netfilter.h:303 [inline]\\nip6_output+0x323/0x610 net/ipv6/ip6_output.c:243\\ndst_output include/net/dst.h:451 [inline]\\nip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155\\nip6_send_skb net/ipv6/ip6_output.c:1952 [inline]\\nip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972\\nrawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582\\nrawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920\\ninet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847\\nsock_sendmsg_nosec net/socket.c:730 [inline]\\n__sock_sendmsg net/socket.c:745 [inline]\\n____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\\n___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\\n__sys_sendmsg net/socket.c:2667 [inline]\\n__do_sys_sendmsg net/socket.c:2676 [inline]\\n__se_sys_sendmsg net/socket.c:2674 [inline]\\n__x64_sys_sendmsg+0x307/0x490 net/socket.c:2674\\ndo_syscall_x64 arch/x86/entry/common.c:52 [inline]\\ndo_syscall_64+0x44/0x110 arch/x86/entry/common.c:83\\nentry_SYSCALL_64_after_hwframe+0x63/0x6b\\n\\nUninit was created at:\\nslab_post_alloc_hook+0x129/0xa70 mm/slab.h:768\\nslab_alloc_node mm/slub.c:3478 [inline]\\n__kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517\\n__do_kmalloc_node mm/slab_common.c:1006 [inline]\\n__kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c:1027\\nkmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582\\npskb_expand_head+0x226/0x1a00 net/core/skbuff.c:2098\\n__pskb_pull_tail+0x13b/0x2310 net/core/skbuff.c:2655\\npskb_may_pull_reason include/linux/skbuff.h:2673 [inline]\\npskb_may_pull include/linux/skbuff.h:2681 [inline]\\nip6_tnl_parse_tlv_enc_lim+0x901/0xbb0 net/ipv6/ip6_tunnel.c:408\\nipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]\\nip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432\\n__netdev_start_xmit include/linux/netdevice.h:4940 [inline]\\nnetdev_start_xmit include/linux/netdevice.h:4954 [inline]\\nxmit_one net/core/dev.c:3548 [inline]\\ndev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564\\n__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349\\ndev_queue_xmit include/linux/netdevice.h:3134 [inline]\\nneigh_connected_output+0x569/0x660 net/core/neighbour.c:1592\\nneigh_output include/net/neighbour.h:542 [inline]\\nip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137\\nip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222\\nNF_HOOK_COND include/linux/netfilter.h:303 [inline]\\nip6_output+0x323/0x610 net/ipv6/ip6_output.c:243\\ndst_output include/net/dst.h:451 [inline]\\nip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155\\nip6_send_skb net/ipv6/ip6_output.c:1952 [inline]\\nip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972\\nrawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582\\nrawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920\\ninet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847\\nsock_sendmsg_nosec net/socket.c:730 [inline]\\n__sock_sendmsg net/socket.c:745 [inline]\\n____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\\n___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\\n__sys_sendmsg net/socket.c:2667 [inline]\\n__do_sys_sendms\\n---truncated---\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: ip6_tunnel: corrige el manejo de NEXTHDR_FRAGMENT en ip6_tnl_parse_tlv_enc_lim() syzbot se\\u00f1al\\u00f3 [1] que el manejo de NEXTHDR_FRAGMENT no funciona. La lectura de frag_off solo se puede realizar si extraemos suficientes bytes para skb-\u0026gt;head. Actualmente podr\\u00edamos acceder a basura. [1] ERROR: KMSAN: valor uninit en ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0 ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0 ipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [en l\\u00ednea] ip6_tnl_start_xmit+0x ab2/0x1a70 net/ipv6/ip6_tunnel.c:1432 __netdev_start_xmit incluye /linux/netdevice.h:4940 [en l\\u00ednea] netdev_start_xmit include/linux/netdevice.h:4954 [en l\\u00ednea] xmit_one net/core/dev.c:3548 [en l\\u00ednea] dev_hard_start_xmit+0x247/0xa10 net/core/dev.c: 3564 __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 dev_queue_xmit include/linux/netdevice.h:3134 [en l\\u00ednea] neigh_connected_output+0x569/0x660 net/core/neighbour.c:1592 neigh_output include/net/neighbour.h :542 [en l\\u00ednea] ip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137 ip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222 NF_HOOK_COND include/linux/netfilter.h:303 [en l\\u00ednea] ip6_output+0x3 23/ 0x610 net/ipv6/ip6_output.c:243 dst_output include/net/dst.h:451 [en l\\u00ednea] ip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155 ip6_send_skb net/ipv6/ip6_output.c:1952 [en l\\u00ednea] ip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972 rawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582 rawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920 inet_sendmsg+0 x105/0x190 neto/ipv4 /af_inet.c:847 sock_sendmsg_nosec net/socket.c:730 [en l\\u00ednea] __sock_sendmsg net/socket.c:745 [en l\\u00ednea] ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c :2638 __sys_sendmsg net/socket.c:2667 [en l\\u00ednea] __do_sys_sendmsg net/socket.c:2676 [en l\\u00ednea] __se_sys_sendmsg net/socket.c:2674 [en l\\u00ednea] __x64_sys_sendmsg+0x307/0x490 net/socket.c:267 4 do_syscall_x64 arco/ x86/entry/common.c:52 [en l\\u00ednea] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit se cre\\u00f3 en: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [en l\\u00ednea] __kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1006 [en l\\u00ednea] __kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c :1027 kmalloc_reserve+0x249/ 0x4a0 net/core/skbuff.c:582 pskb_expand_head+0x226/0x1a00 net/core/skbuff.c:2098 __pskb_pull_tail+0x13b/0x2310 net/core/skbuff.c:2655 pskb_may_pull_reason include/linux/skbuff.h:2673 [en l\\u00ednea ] pskb_may_pull include/linux/skbuff.h:2681 [en l\\u00ednea] ip6_tnl_parse_tlv_enc_lim+0x901/0xbb0 net/ipv6/ip6_tunnel.c:408 ipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [en l\\u00ednea] ip6_tnl_start_xmit+0xab 2/0x1a70 neto/ipv6/ ip6_tunnel.c:1432 __netdev_start_xmit include/linux/netdevice.h:4940 [en l\\u00ednea] netdev_start_xmit include/linux/netdevice.h:4954 [en l\\u00ednea] xmit_one net/core/dev.c:3548 [en l\\u00ednea] dev_hard_start_xmit+0x247/0xa10 net /core/dev.c:3564 __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 dev_queue_xmit include/linux/netdevice.h:3134 [en l\\u00ednea] neigh_connected_output+0x569/0x660 net/core/neighbour.c:1592 neigh_output include/net/neighbour.h:542 [en l\\u00ednea] ip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137 ip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222 NF_HOOK_COND include/linux/netfilter.h:303 [en l\\u00ednea] ip6_output+0x323/0x610 net/ipv6/ip6_output.c:243 dst_output include/net/dst.h:451 [en l\\u00ednea] ip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155 ip6_send_skb net/ipv6/ip6_output .c:1952 [en l\\u00ednea] ip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972 rawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582 rawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:9 20 inet_sendmsg +0x105/0x190 net/ipv4/af_inet.c:847 sock_sendmsg_nosec net/socket.c:730 [en l\\u00ednea] __sock_sendmsg net/socket.c:745 [en l\\u00ednea]---truncado---\"}]",
"id": "CVE-2024-26633",
"lastModified": "2024-12-20T13:15:19.710",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
"published": "2024-03-18T11:15:09.867",
"references": "[{\"url\": \"https://git.kernel.org/stable/c/135414f300c5db995e2a2f3bf0f455de9d014aee\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/3f15ba3dc14e6ee002ea01b4faddc3d49200377c\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/4329426cf6b8e22b798db2331c7ef1dd2a9c748d\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/62a1fedeb14c7ac0947ef33fadbabd35ed2400a2\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/687c5d52fe53e602e76826dbd4d7af412747e183\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/ba8d904c274268b18ef3dc11d3ca7b24a96cb087\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/d375b98e0248980681e5e56b712026174d617198\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/da23bd709b46168f7dfc36055801011222b076cd\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/135414f300c5db995e2a2f3bf0f455de9d014aee\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/3f15ba3dc14e6ee002ea01b4faddc3d49200377c\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/4329426cf6b8e22b798db2331c7ef1dd2a9c748d\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/62a1fedeb14c7ac0947ef33fadbabd35ed2400a2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/687c5d52fe53e602e76826dbd4d7af412747e183\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/ba8d904c274268b18ef3dc11d3ca7b24a96cb087\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/d375b98e0248980681e5e56b712026174d617198\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/da23bd709b46168f7dfc36055801011222b076cd\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20241220-0001/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2024-26633\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-18T11:15:09.867\",\"lastModified\":\"2026-06-17T07:17:56.487\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()\\n\\nsyzbot pointed out [1] that NEXTHDR_FRAGMENT handling is broken.\\n\\nReading frag_off can only be done if we pulled enough bytes\\nto skb-\u003ehead. Currently we might access garbage.\\n\\n[1]\\nBUG: KMSAN: uninit-value in ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0\\nip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0\\nipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]\\nip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432\\n__netdev_start_xmit include/linux/netdevice.h:4940 [inline]\\nnetdev_start_xmit include/linux/netdevice.h:4954 [inline]\\nxmit_one net/core/dev.c:3548 [inline]\\ndev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564\\n__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349\\ndev_queue_xmit include/linux/netdevice.h:3134 [inline]\\nneigh_connected_output+0x569/0x660 net/core/neighbour.c:1592\\nneigh_output include/net/neighbour.h:542 [inline]\\nip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137\\nip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222\\nNF_HOOK_COND include/linux/netfilter.h:303 [inline]\\nip6_output+0x323/0x610 net/ipv6/ip6_output.c:243\\ndst_output include/net/dst.h:451 [inline]\\nip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155\\nip6_send_skb net/ipv6/ip6_output.c:1952 [inline]\\nip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972\\nrawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582\\nrawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920\\ninet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847\\nsock_sendmsg_nosec net/socket.c:730 [inline]\\n__sock_sendmsg net/socket.c:745 [inline]\\n____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\\n___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\\n__sys_sendmsg net/socket.c:2667 [inline]\\n__do_sys_sendmsg net/socket.c:2676 [inline]\\n__se_sys_sendmsg net/socket.c:2674 [inline]\\n__x64_sys_sendmsg+0x307/0x490 net/socket.c:2674\\ndo_syscall_x64 arch/x86/entry/common.c:52 [inline]\\ndo_syscall_64+0x44/0x110 arch/x86/entry/common.c:83\\nentry_SYSCALL_64_after_hwframe+0x63/0x6b\\n\\nUninit was created at:\\nslab_post_alloc_hook+0x129/0xa70 mm/slab.h:768\\nslab_alloc_node mm/slub.c:3478 [inline]\\n__kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517\\n__do_kmalloc_node mm/slab_common.c:1006 [inline]\\n__kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c:1027\\nkmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582\\npskb_expand_head+0x226/0x1a00 net/core/skbuff.c:2098\\n__pskb_pull_tail+0x13b/0x2310 net/core/skbuff.c:2655\\npskb_may_pull_reason include/linux/skbuff.h:2673 [inline]\\npskb_may_pull include/linux/skbuff.h:2681 [inline]\\nip6_tnl_parse_tlv_enc_lim+0x901/0xbb0 net/ipv6/ip6_tunnel.c:408\\nipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]\\nip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432\\n__netdev_start_xmit include/linux/netdevice.h:4940 [inline]\\nnetdev_start_xmit include/linux/netdevice.h:4954 [inline]\\nxmit_one net/core/dev.c:3548 [inline]\\ndev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564\\n__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349\\ndev_queue_xmit include/linux/netdevice.h:3134 [inline]\\nneigh_connected_output+0x569/0x660 net/core/neighbour.c:1592\\nneigh_output include/net/neighbour.h:542 [inline]\\nip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137\\nip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222\\nNF_HOOK_COND include/linux/netfilter.h:303 [inline]\\nip6_output+0x323/0x610 net/ipv6/ip6_output.c:243\\ndst_output include/net/dst.h:451 [inline]\\nip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155\\nip6_send_skb net/ipv6/ip6_output.c:1952 [inline]\\nip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972\\nrawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582\\nrawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920\\ninet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847\\nsock_sendmsg_nosec net/socket.c:730 [inline]\\n__sock_sendmsg net/socket.c:745 [inline]\\n____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\\n___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\\n__sys_sendmsg net/socket.c:2667 [inline]\\n__do_sys_sendms\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ip6_tunnel: corrige el manejo de NEXTHDR_FRAGMENT en ip6_tnl_parse_tlv_enc_lim() syzbot se\u00f1al\u00f3 [1] que el manejo de NEXTHDR_FRAGMENT no funciona. La lectura de frag_off solo se puede realizar si extraemos suficientes bytes para skb-\u0026gt;head. Actualmente podr\u00edamos acceder a basura. [1] ERROR: KMSAN: valor uninit en ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0 ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0 ipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [en l\u00ednea] ip6_tnl_start_xmit+0x ab2/0x1a70 net/ipv6/ip6_tunnel.c:1432 __netdev_start_xmit incluye /linux/netdevice.h:4940 [en l\u00ednea] netdev_start_xmit include/linux/netdevice.h:4954 [en l\u00ednea] xmit_one net/core/dev.c:3548 [en l\u00ednea] dev_hard_start_xmit+0x247/0xa10 net/core/dev.c: 3564 __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 dev_queue_xmit include/linux/netdevice.h:3134 [en l\u00ednea] neigh_connected_output+0x569/0x660 net/core/neighbour.c:1592 neigh_output include/net/neighbour.h :542 [en l\u00ednea] ip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137 ip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222 NF_HOOK_COND include/linux/netfilter.h:303 [en l\u00ednea] ip6_output+0x3 23/ 0x610 net/ipv6/ip6_output.c:243 dst_output include/net/dst.h:451 [en l\u00ednea] ip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155 ip6_send_skb net/ipv6/ip6_output.c:1952 [en l\u00ednea] ip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972 rawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582 rawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920 inet_sendmsg+0 x105/0x190 neto/ipv4 /af_inet.c:847 sock_sendmsg_nosec net/socket.c:730 [en l\u00ednea] __sock_sendmsg net/socket.c:745 [en l\u00ednea] ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c :2638 __sys_sendmsg net/socket.c:2667 [en l\u00ednea] __do_sys_sendmsg net/socket.c:2676 [en l\u00ednea] __se_sys_sendmsg net/socket.c:2674 [en l\u00ednea] __x64_sys_sendmsg+0x307/0x490 net/socket.c:267 4 do_syscall_x64 arco/ x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit se cre\u00f3 en: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [en l\u00ednea] __kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1006 [en l\u00ednea] __kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c :1027 kmalloc_reserve+0x249/ 0x4a0 net/core/skbuff.c:582 pskb_expand_head+0x226/0x1a00 net/core/skbuff.c:2098 __pskb_pull_tail+0x13b/0x2310 net/core/skbuff.c:2655 pskb_may_pull_reason include/linux/skbuff.h:2673 [en l\u00ednea ] pskb_may_pull include/linux/skbuff.h:2681 [en l\u00ednea] ip6_tnl_parse_tlv_enc_lim+0x901/0xbb0 net/ipv6/ip6_tunnel.c:408 ipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [en l\u00ednea] ip6_tnl_start_xmit+0xab 2/0x1a70 neto/ipv6/ ip6_tunnel.c:1432 __netdev_start_xmit include/linux/netdevice.h:4940 [en l\u00ednea] netdev_start_xmit include/linux/netdevice.h:4954 [en l\u00ednea] xmit_one net/core/dev.c:3548 [en l\u00ednea] dev_hard_start_xmit+0x247/0xa10 net /core/dev.c:3564 __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 dev_queue_xmit include/linux/netdevice.h:3134 [en l\u00ednea] neigh_connected_output+0x569/0x660 net/core/neighbour.c:1592 neigh_output include/net/neighbour.h:542 [en l\u00ednea] ip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137 ip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222 NF_HOOK_COND include/linux/netfilter.h:303 [en l\u00ednea] ip6_output+0x323/0x610 net/ipv6/ip6_output.c:243 dst_output include/net/dst.h:451 [en l\u00ednea] ip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155 ip6_send_skb net/ipv6/ip6_output .c:1952 [en l\u00ednea] ip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972 rawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582 rawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:9 20 inet_sendmsg +0x105/0x190 net/ipv4/af_inet.c:847 sock_sendmsg_nosec net/socket.c:730 [en l\u00ednea] __sock_sendmsg net/socket.c:745 [en 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"aggregate_severity": "Low",
"current_release_date": "2025-11-21T14:44:35+00:00",
"cve": "CVE-2024-26633",
"id": "CVE-2024-26633",
"initial_release_date": "2024-03-18T00:00:00+00:00",
"product_status:fixed": "845",
"product_status:known_affected": "112",
"product_status:known_not_affected": "40",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26633.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-02T01:35:27Z",
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"id": "CVE-2024-26633",
"initial_release_date": "2024-03-20T03:48:19Z",
"product_status:known_affected": "524",
"product_status:recommended": "764",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-26633",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-26633.json",
"version": "103"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/135414f300c5db995e2a2f3bf0f455de9d014aee\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/3f15ba3dc14e6ee002ea01b4faddc3d49200377c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/da23bd709b46168f7dfc36055801011222b076cd\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/4329426cf6b8e22b798db2331c7ef1dd2a9c748d\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/62a1fedeb14c7ac0947ef33fadbabd35ed2400a2\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/687c5d52fe53e602e76826dbd4d7af412747e183\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/ba8d904c274268b18ef3dc11d3ca7b24a96cb087\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/d375b98e0248980681e5e56b712026174d617198\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20241220-0001/\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-12-20T13:06:42.426Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-26633\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-03-18T19:01:45.822242Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:18.545Z\"}}], \"cna\": {\"title\": \"ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"fbfa743a9d2a0ffa24251764f10afc13eb21e739\", \"lessThan\": \"135414f300c5db995e2a2f3bf0f455de9d014aee\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fbfa743a9d2a0ffa24251764f10afc13eb21e739\", \"lessThan\": \"3f15ba3dc14e6ee002ea01b4faddc3d49200377c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fbfa743a9d2a0ffa24251764f10afc13eb21e739\", \"lessThan\": \"da23bd709b46168f7dfc36055801011222b076cd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fbfa743a9d2a0ffa24251764f10afc13eb21e739\", \"lessThan\": \"4329426cf6b8e22b798db2331c7ef1dd2a9c748d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fbfa743a9d2a0ffa24251764f10afc13eb21e739\", \"lessThan\": \"62a1fedeb14c7ac0947ef33fadbabd35ed2400a2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fbfa743a9d2a0ffa24251764f10afc13eb21e739\", \"lessThan\": \"687c5d52fe53e602e76826dbd4d7af412747e183\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fbfa743a9d2a0ffa24251764f10afc13eb21e739\", \"lessThan\": \"ba8d904c274268b18ef3dc11d3ca7b24a96cb087\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fbfa743a9d2a0ffa24251764f10afc13eb21e739\", \"lessThan\": \"d375b98e0248980681e5e56b712026174d617198\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a6f6bb6bc04a5f88a31f47a6123d3fbf5ee8d694\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"72bbf335e7aad09c88c50dbdd238f4faabd12174\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"decccc92ee0a978a1c268b5df16824cb6384ed3c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d3d9b59ab32160e3cc4edcf7e5fa7cecb53a7d25\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d397f7035d2c754781bbe93b07b94d8cd898620c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"41e07a7e01d951cfd4c9a7dac90c921269d89513\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a7fe4e5d06338e1a82b1977eca37400951f99730\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv6/ip6_tunnel.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.306\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.268\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.209\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.148\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.75\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv6/ip6_tunnel.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/135414f300c5db995e2a2f3bf0f455de9d014aee\"}, {\"url\": \"https://git.kernel.org/stable/c/3f15ba3dc14e6ee002ea01b4faddc3d49200377c\"}, {\"url\": \"https://git.kernel.org/stable/c/da23bd709b46168f7dfc36055801011222b076cd\"}, {\"url\": \"https://git.kernel.org/stable/c/4329426cf6b8e22b798db2331c7ef1dd2a9c748d\"}, {\"url\": \"https://git.kernel.org/stable/c/62a1fedeb14c7ac0947ef33fadbabd35ed2400a2\"}, {\"url\": \"https://git.kernel.org/stable/c/687c5d52fe53e602e76826dbd4d7af412747e183\"}, {\"url\": \"https://git.kernel.org/stable/c/ba8d904c274268b18ef3dc11d3ca7b24a96cb087\"}, {\"url\": \"https://git.kernel.org/stable/c/d375b98e0248980681e5e56b712026174d617198\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()\\n\\nsyzbot pointed out [1] that NEXTHDR_FRAGMENT handling is broken.\\n\\nReading frag_off can only be done if we pulled enough bytes\\nto skb-\u003ehead. Currently we might access garbage.\\n\\n[1]\\nBUG: KMSAN: uninit-value in ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0\\nip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0\\nipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]\\nip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432\\n__netdev_start_xmit include/linux/netdevice.h:4940 [inline]\\nnetdev_start_xmit include/linux/netdevice.h:4954 [inline]\\nxmit_one net/core/dev.c:3548 [inline]\\ndev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564\\n__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349\\ndev_queue_xmit include/linux/netdevice.h:3134 [inline]\\nneigh_connected_output+0x569/0x660 net/core/neighbour.c:1592\\nneigh_output include/net/neighbour.h:542 [inline]\\nip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137\\nip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222\\nNF_HOOK_COND include/linux/netfilter.h:303 [inline]\\nip6_output+0x323/0x610 net/ipv6/ip6_output.c:243\\ndst_output include/net/dst.h:451 [inline]\\nip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155\\nip6_send_skb net/ipv6/ip6_output.c:1952 [inline]\\nip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972\\nrawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582\\nrawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920\\ninet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847\\nsock_sendmsg_nosec net/socket.c:730 [inline]\\n__sock_sendmsg net/socket.c:745 [inline]\\n____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\\n___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\\n__sys_sendmsg net/socket.c:2667 [inline]\\n__do_sys_sendmsg net/socket.c:2676 [inline]\\n__se_sys_sendmsg net/socket.c:2674 [inline]\\n__x64_sys_sendmsg+0x307/0x490 net/socket.c:2674\\ndo_syscall_x64 arch/x86/entry/common.c:52 [inline]\\ndo_syscall_64+0x44/0x110 arch/x86/entry/common.c:83\\nentry_SYSCALL_64_after_hwframe+0x63/0x6b\\n\\nUninit was created at:\\nslab_post_alloc_hook+0x129/0xa70 mm/slab.h:768\\nslab_alloc_node mm/slub.c:3478 [inline]\\n__kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517\\n__do_kmalloc_node mm/slab_common.c:1006 [inline]\\n__kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c:1027\\nkmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582\\npskb_expand_head+0x226/0x1a00 net/core/skbuff.c:2098\\n__pskb_pull_tail+0x13b/0x2310 net/core/skbuff.c:2655\\npskb_may_pull_reason include/linux/skbuff.h:2673 [inline]\\npskb_may_pull include/linux/skbuff.h:2681 [inline]\\nip6_tnl_parse_tlv_enc_lim+0x901/0xbb0 net/ipv6/ip6_tunnel.c:408\\nipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline]\\nip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432\\n__netdev_start_xmit include/linux/netdevice.h:4940 [inline]\\nnetdev_start_xmit include/linux/netdevice.h:4954 [inline]\\nxmit_one net/core/dev.c:3548 [inline]\\ndev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564\\n__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349\\ndev_queue_xmit include/linux/netdevice.h:3134 [inline]\\nneigh_connected_output+0x569/0x660 net/core/neighbour.c:1592\\nneigh_output include/net/neighbour.h:542 [inline]\\nip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137\\nip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222\\nNF_HOOK_COND include/linux/netfilter.h:303 [inline]\\nip6_output+0x323/0x610 net/ipv6/ip6_output.c:243\\ndst_output include/net/dst.h:451 [inline]\\nip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155\\nip6_send_skb net/ipv6/ip6_output.c:1952 [inline]\\nip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972\\nrawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582\\nrawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920\\ninet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847\\nsock_sendmsg_nosec net/socket.c:730 [inline]\\n__sock_sendmsg net/socket.c:745 [inline]\\n____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\\n___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\\n__sys_sendmsg net/socket.c:2667 [inline]\\n__do_sys_sendms\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.306\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.268\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.209\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.148\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.75\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.14\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.2\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"3.2.87\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"3.10.106\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"3.12.71\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"3.16.42\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"3.18.49\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.4.50\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.9.11\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:01:11.341Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-26633\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:01:11.341Z\", \"dateReserved\": \"2024-02-19T14:20:24.136Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-18T10:07:49.468Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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