suse-su-2025:4215-1
Vulnerability from csaf_suse
Published
2025-11-24 17:43
Modified
2025-11-24 17:43
Summary
Security update for the Linux Kernel (Live Patch 34 for SUSE Linux Enterprise 15 SP4)
Notes
Title of the patch
Security update for the Linux Kernel (Live Patch 34 for SUSE Linux Enterprise 15 SP4)
Description of the patch
This update for the SUSE Linux Enterprise kernel 5.14.21-150400.24.144 fixes various security issues
The following security issues were fixed:
- CVE-2023-53673: Bluetooth: hci_event: call disconnect callback before deleting conn (bsc#1251983).
- CVE-2024-53141: netfilter: ipset: add missing range check in bitmap_ip_uadt (bsc#1245778).
- CVE-2025-23145: mptcp: fix NULL pointer in can_accept_new_subflow (bsc#1242882).
Patchnames
SUSE-2025-4211,SUSE-2025-4215,SUSE-SLE-Module-Live-Patching-15-SP4-2025-4215
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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"vulnerabilities": [
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"ids": [
{
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"text": "https://www.suse.com/security/cve/CVE-2023-53673"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: call disconnect callback before deleting conn\n\nIn hci_cs_disconnect, we do hci_conn_del even if disconnection failed.\n\nISO, L2CAP and SCO connections refer to the hci_conn without\nhci_conn_get, so disconn_cfm must be called so they can clean up their\nconn, otherwise use-after-free occurs.\n\nISO:\n==========================================================\niso_sock_connect:880: sk 00000000eabd6557\niso_connect_cis:356: 70:1a:b8:98:ff:a2 -\u003e 28:3d:c2:4a:7e:da\n...\niso_conn_add:140: hcon 000000001696f1fd conn 00000000b6251073\nhci_dev_put:1487: hci0 orig refcnt 17\n__iso_chan_add:214: conn 00000000b6251073\niso_sock_clear_timer:117: sock 00000000eabd6557 state 3\n...\nhci_rx_work:4085: hci0 Event packet\nhci_event_packet:7601: hci0: event 0x0f\nhci_cmd_status_evt:4346: hci0: opcode 0x0406\nhci_cs_disconnect:2760: hci0: status 0x0c\nhci_sent_cmd_data:3107: hci0 opcode 0x0406\nhci_conn_del:1151: hci0 hcon 000000001696f1fd handle 2560\nhci_conn_unlink:1102: hci0: hcon 000000001696f1fd\nhci_conn_drop:1451: hcon 00000000d8521aaf orig refcnt 2\nhci_chan_list_flush:2780: hcon 000000001696f1fd\nhci_dev_put:1487: hci0 orig refcnt 21\nhci_dev_put:1487: hci0 orig refcnt 20\nhci_req_cmd_complete:3978: opcode 0x0406 status 0x0c\n... \u003cno iso_* activity on sk/conn\u003e ...\niso_sock_sendmsg:1098: sock 00000000dea5e2e0, sk 00000000eabd6557\nBUG: kernel NULL pointer dereference, address: 0000000000000668\nPGD 0 P4D 0\nOops: 0000 [#1] PREEMPT SMP PTI\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-1.fc38 04/01/2014\nRIP: 0010:iso_sock_sendmsg (net/bluetooth/iso.c:1112) bluetooth\n==========================================================\n\nL2CAP:\n==================================================================\nhci_cmd_status_evt:4359: hci0: opcode 0x0406\nhci_cs_disconnect:2760: hci0: status 0x0c\nhci_sent_cmd_data:3085: hci0 opcode 0x0406\nhci_conn_del:1151: hci0 hcon ffff88800c999000 handle 3585\nhci_conn_unlink:1102: hci0: hcon ffff88800c999000\nhci_chan_list_flush:2780: hcon ffff88800c999000\nhci_chan_del:2761: hci0 hcon ffff88800c999000 chan ffff888018ddd280\n...\nBUG: KASAN: slab-use-after-free in hci_send_acl+0x2d/0x540 [bluetooth]\nRead of size 8 at addr ffff888018ddd298 by task bluetoothd/1175\n\nCPU: 0 PID: 1175 Comm: bluetoothd Tainted: G E 6.4.0-rc4+ #2\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-1.fc38 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x5b/0x90\n print_report+0xcf/0x670\n ? __virt_addr_valid+0xf8/0x180\n ? hci_send_acl+0x2d/0x540 [bluetooth]\n kasan_report+0xa8/0xe0\n ? hci_send_acl+0x2d/0x540 [bluetooth]\n hci_send_acl+0x2d/0x540 [bluetooth]\n ? __pfx___lock_acquire+0x10/0x10\n l2cap_chan_send+0x1fd/0x1300 [bluetooth]\n ? l2cap_sock_sendmsg+0xf2/0x170 [bluetooth]\n ? __pfx_l2cap_chan_send+0x10/0x10 [bluetooth]\n ? lock_release+0x1d5/0x3c0\n ? mark_held_locks+0x1a/0x90\n l2cap_sock_sendmsg+0x100/0x170 [bluetooth]\n sock_write_iter+0x275/0x280\n ? __pfx_sock_write_iter+0x10/0x10\n ? __pfx___lock_acquire+0x10/0x10\n do_iter_readv_writev+0x176/0x220\n ? __pfx_do_iter_readv_writev+0x10/0x10\n ? find_held_lock+0x83/0xa0\n ? selinux_file_permission+0x13e/0x210\n do_iter_write+0xda/0x340\n vfs_writev+0x1b4/0x400\n ? __pfx_vfs_writev+0x10/0x10\n ? __seccomp_filter+0x112/0x750\n ? populate_seccomp_data+0x182/0x220\n ? __fget_light+0xdf/0x100\n ? do_writev+0x19d/0x210\n do_writev+0x19d/0x210\n ? __pfx_do_writev+0x10/0x10\n ? mark_held_locks+0x1a/0x90\n do_syscall_64+0x60/0x90\n ? lockdep_hardirqs_on_prepare+0x149/0x210\n ? do_syscall_64+0x6c/0x90\n ? lockdep_hardirqs_on_prepare+0x149/0x210\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\nRIP: 0033:0x7ff45cb23e64\nCode: 15 d1 1f 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 80 3d 9d a7 0d 00 00 74 13 b8 14 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 54 c3 0f 1f 00 48 83 ec 28 89 54 24 1c 48 89\nRSP: 002b:00007fff21ae09b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000014\nRAX: ffffffffffffffda RBX: \n---truncated---",
"title": "CVE description"
}
],
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{
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"summary": "SUSE Bug 1251763 for CVE-2023-53673",
"url": "https://bugzilla.suse.com/1251763"
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{
"category": "external",
"summary": "SUSE Bug 1251983 for CVE-2023-53673",
"url": "https://bugzilla.suse.com/1251983"
}
],
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{
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"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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"scores": [
{
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"baseScore": 7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"date": "2025-11-24T17:43:06Z",
"details": "important"
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"title": "CVE-2023-53673"
},
{
"cve": "CVE-2024-53141",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2024-53141"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: add missing range check in bitmap_ip_uadt\n\nWhen tb[IPSET_ATTR_IP_TO] is not present but tb[IPSET_ATTR_CIDR] exists,\nthe values of ip and ip_to are slightly swapped. Therefore, the range check\nfor ip should be done later, but this part is missing and it seems that the\nvulnerability occurs.\n\nSo we should add missing range checks and remove unnecessary range checks.",
"title": "CVE description"
}
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{
"category": "external",
"summary": "SUSE Bug 1234381 for CVE-2024-53141",
"url": "https://bugzilla.suse.com/1234381"
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"summary": "SUSE Bug 1245778 for CVE-2024-53141",
"url": "https://bugzilla.suse.com/1245778"
}
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"version": "3.1"
},
"products": [
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"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.s390x",
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.x86_64"
]
}
],
"threats": [
{
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"date": "2025-11-24T17:43:06Z",
"details": "important"
}
],
"title": "CVE-2024-53141"
},
{
"cve": "CVE-2025-23145",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2025-23145"
}
],
"notes": [
{
"category": "general",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix NULL pointer in can_accept_new_subflow\n\nWhen testing valkey benchmark tool with MPTCP, the kernel panics in\n\u0027mptcp_can_accept_new_subflow\u0027 because subflow_req-\u003emsk is NULL.\n\nCall trace:\n\n mptcp_can_accept_new_subflow (./net/mptcp/subflow.c:63 (discriminator 4)) (P)\n subflow_syn_recv_sock (./net/mptcp/subflow.c:854)\n tcp_check_req (./net/ipv4/tcp_minisocks.c:863)\n tcp_v4_rcv (./net/ipv4/tcp_ipv4.c:2268)\n ip_protocol_deliver_rcu (./net/ipv4/ip_input.c:207)\n ip_local_deliver_finish (./net/ipv4/ip_input.c:234)\n ip_local_deliver (./net/ipv4/ip_input.c:254)\n ip_rcv_finish (./net/ipv4/ip_input.c:449)\n ...\n\nAccording to the debug log, the same req received two SYN-ACK in a very\nshort time, very likely because the client retransmits the syn ack due\nto multiple reasons.\n\nEven if the packets are transmitted with a relevant time interval, they\ncan be processed by the server on different CPUs concurrently). The\n\u0027subflow_req-\u003emsk\u0027 ownership is transferred to the subflow the first,\nand there will be a risk of a null pointer dereference here.\n\nThis patch fixes this issue by moving the \u0027subflow_req-\u003emsk\u0027 under the\n`own_req == true` conditional.\n\nNote that the !msk check in subflow_hmac_valid() can be dropped, because\nthe same check already exists under the own_req mpj branch where the\ncode has been moved to.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.ppc64le",
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.s390x",
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2025-23145",
"url": "https://www.suse.com/security/cve/CVE-2025-23145"
},
{
"category": "external",
"summary": "SUSE Bug 1242596 for CVE-2025-23145",
"url": "https://bugzilla.suse.com/1242596"
},
{
"category": "external",
"summary": "SUSE Bug 1242882 for CVE-2025-23145",
"url": "https://bugzilla.suse.com/1242882"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.ppc64le",
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.s390x",
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.ppc64le",
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.s390x",
"SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-17-150400.2.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2025-11-24T17:43:06Z",
"details": "important"
}
],
"title": "CVE-2025-23145"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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