CVE-2025-21959 (GCVE-0-2025-21959)

Vulnerability from cvelistv5 – Published: 2025-04-01 15:46 – Updated: 2026-05-11 21:09
VLAI?
Title
netfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree() Since commit b36e4523d4d5 ("netfilter: nf_conncount: fix garbage collection confirm race"), `cpu` and `jiffies32` were introduced to the struct nf_conncount_tuple. The commit made nf_conncount_add() initialize `conn->cpu` and `conn->jiffies32` when allocating the struct. In contrast, count_tree() was not changed to initialize them. By commit 34848d5c896e ("netfilter: nf_conncount: Split insert and traversal"), count_tree() was split and the relevant allocation code now resides in insert_tree(). Initialize `conn->cpu` and `conn->jiffies32` in insert_tree(). BUG: KMSAN: uninit-value in find_or_evict net/netfilter/nf_conncount.c:117 [inline] BUG: KMSAN: uninit-value in __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143 find_or_evict net/netfilter/nf_conncount.c:117 [inline] __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143 count_tree net/netfilter/nf_conncount.c:438 [inline] nf_conncount_count+0x82f/0x1e80 net/netfilter/nf_conncount.c:521 connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72 __nft_match_eval net/netfilter/nft_compat.c:403 [inline] nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline] nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288 nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663 NF_HOOK_LIST include/linux/netfilter.h:350 [inline] ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633 ip_list_rcv+0x9ef/0xa40 net/ipv4/ip_input.c:669 __netif_receive_skb_list_ptype net/core/dev.c:5936 [inline] __netif_receive_skb_list_core+0x15c5/0x1670 net/core/dev.c:5983 __netif_receive_skb_list net/core/dev.c:6035 [inline] netif_receive_skb_list_internal+0x1085/0x1700 net/core/dev.c:6126 netif_receive_skb_list+0x5a/0x460 net/core/dev.c:6178 xdp_recv_frames net/bpf/test_run.c:280 [inline] xdp_test_run_batch net/bpf/test_run.c:361 [inline] bpf_test_run_xdp_live+0x2e86/0x3480 net/bpf/test_run.c:390 bpf_prog_test_run_xdp+0xf1d/0x1ae0 net/bpf/test_run.c:1316 bpf_prog_test_run+0x5e5/0xa30 kernel/bpf/syscall.c:4407 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5813 __do_sys_bpf kernel/bpf/syscall.c:5902 [inline] __se_sys_bpf kernel/bpf/syscall.c:5900 [inline] __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5900 ia32_sys_call+0x394d/0x4180 arch/x86/include/generated/asm/syscalls_32.h:358 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450 entry_SYSENTER_compat_after_hwframe+0x84/0x8e Uninit was created at: slab_post_alloc_hook mm/slub.c:4121 [inline] slab_alloc_node mm/slub.c:4164 [inline] kmem_cache_alloc_noprof+0x915/0xe10 mm/slub.c:4171 insert_tree net/netfilter/nf_conncount.c:372 [inline] count_tree net/netfilter/nf_conncount.c:450 [inline] nf_conncount_count+0x1415/0x1e80 net/netfilter/nf_conncount.c:521 connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72 __nft_match_eval net/netfilter/nft_compat.c:403 [inline] nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline] nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288 nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663 NF_HOOK_LIST include/linux/netfilter.h:350 [inline] ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633 ip_list_rcv+0x9ef/0xa40 net/ip ---truncated---
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 , < f522229c5563b59b4240261e406779bba6754159 (git)
Affected: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 , < 2a154ce766b995494e88d8d117fa82cc6b73dd87 (git)
Affected: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 , < e8544a5a97bee3674e7cd6bf0f3a4af517fa9146 (git)
Affected: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 , < a62a25c6ad58fae997f48a0749afeda1c252ae51 (git)
Affected: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 , < fda50302a13701d47fbe01e1739c7a51114144fb (git)
Affected: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 , < db1e0c0856821c59a32ea3af79476bf20a6beeb2 (git)
Affected: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 , < 2db5baaf047a7c8d6ed5e2cc657b7854e155b7fc (git)
Affected: b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452 , < d653bfeb07ebb3499c403404c21ac58a16531607 (git)
Affected: 75af3d78168e654a5cd8bbc4c774f97be836165f (git)
Create a notification for this product.
Linux Linux Affected: 4.18
Unaffected: 0 , < 4.18 (semver)
Unaffected: 5.4.292 , ≤ 5.4.* (semver)
Unaffected: 5.10.236 , ≤ 5.10.* (semver)
Unaffected: 5.15.180 , ≤ 5.15.* (semver)
Unaffected: 6.1.132 , ≤ 6.1.* (semver)
Unaffected: 6.6.84 , ≤ 6.6.* (semver)
Unaffected: 6.12.20 , ≤ 6.12.* (semver)
Unaffected: 6.13.8 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()\n\nSince commit b36e4523d4d5 (\"netfilter: nf_conncount: fix garbage\ncollection confirm race\"), `cpu` and `jiffies32` were introduced to\nthe struct nf_conncount_tuple.\n\nThe commit made nf_conncount_add() initialize `conn-\u003ecpu` and\n`conn-\u003ejiffies32` when allocating the struct.\nIn contrast, count_tree() was not changed to initialize them.\n\nBy commit 34848d5c896e (\"netfilter: nf_conncount: Split insert and\ntraversal\"), count_tree() was split and the relevant allocation\ncode now resides in insert_tree().\nInitialize `conn-\u003ecpu` and `conn-\u003ejiffies32` in insert_tree().\n\nBUG: KMSAN: uninit-value in find_or_evict net/netfilter/nf_conncount.c:117 [inline]\nBUG: KMSAN: uninit-value in __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143\n find_or_evict net/netfilter/nf_conncount.c:117 [inline]\n __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143\n count_tree net/netfilter/nf_conncount.c:438 [inline]\n nf_conncount_count+0x82f/0x1e80 net/netfilter/nf_conncount.c:521\n connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72\n __nft_match_eval net/netfilter/nft_compat.c:403 [inline]\n nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433\n expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288\n nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23\n nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663\n NF_HOOK_LIST include/linux/netfilter.h:350 [inline]\n ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633\n ip_list_rcv+0x9ef/0xa40 net/ipv4/ip_input.c:669\n __netif_receive_skb_list_ptype net/core/dev.c:5936 [inline]\n __netif_receive_skb_list_core+0x15c5/0x1670 net/core/dev.c:5983\n __netif_receive_skb_list net/core/dev.c:6035 [inline]\n netif_receive_skb_list_internal+0x1085/0x1700 net/core/dev.c:6126\n netif_receive_skb_list+0x5a/0x460 net/core/dev.c:6178\n xdp_recv_frames net/bpf/test_run.c:280 [inline]\n xdp_test_run_batch net/bpf/test_run.c:361 [inline]\n bpf_test_run_xdp_live+0x2e86/0x3480 net/bpf/test_run.c:390\n bpf_prog_test_run_xdp+0xf1d/0x1ae0 net/bpf/test_run.c:1316\n bpf_prog_test_run+0x5e5/0xa30 kernel/bpf/syscall.c:4407\n __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5813\n __do_sys_bpf kernel/bpf/syscall.c:5902 [inline]\n __se_sys_bpf kernel/bpf/syscall.c:5900 [inline]\n __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5900\n ia32_sys_call+0x394d/0x4180 arch/x86/include/generated/asm/syscalls_32.h:358\n do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]\n __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387\n do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450\n entry_SYSENTER_compat_after_hwframe+0x84/0x8e\n\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:4121 [inline]\n slab_alloc_node mm/slub.c:4164 [inline]\n kmem_cache_alloc_noprof+0x915/0xe10 mm/slub.c:4171\n insert_tree net/netfilter/nf_conncount.c:372 [inline]\n count_tree net/netfilter/nf_conncount.c:450 [inline]\n nf_conncount_count+0x1415/0x1e80 net/netfilter/nf_conncount.c:521\n connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72\n __nft_match_eval net/netfilter/nft_compat.c:403 [inline]\n nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433\n expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288\n nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23\n nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663\n NF_HOOK_LIST include/linux/netfilter.h:350 [inline]\n ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633\n ip_list_rcv+0x9ef/0xa40 net/ip\n---truncated---"
        }
      ],
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        },
        {
          "url": "https://git.kernel.org/stable/c/d653bfeb07ebb3499c403404c21ac58a16531607"
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      ],
      "title": "netfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()",
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21959",
    "datePublished": "2025-04-01T15:46:57.775Z",
    "dateReserved": "2024-12-29T08:45:45.793Z",
    "dateUpdated": "2026-05-11T21:09:51.318Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-21959",
      "date": "2026-05-20",
      "epss": "0.00026",
      "percentile": "0.07495"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21959\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-01T16:15:27.120\",\"lastModified\":\"2025-11-03T20:17:32.533\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()\\n\\nSince commit b36e4523d4d5 (\\\"netfilter: nf_conncount: fix garbage\\ncollection confirm race\\\"), `cpu` and `jiffies32` were introduced to\\nthe struct nf_conncount_tuple.\\n\\nThe commit made nf_conncount_add() initialize `conn-\u003ecpu` and\\n`conn-\u003ejiffies32` when allocating the struct.\\nIn contrast, count_tree() was not changed to initialize them.\\n\\nBy commit 34848d5c896e (\\\"netfilter: nf_conncount: Split insert and\\ntraversal\\\"), count_tree() was split and the relevant allocation\\ncode now resides in insert_tree().\\nInitialize `conn-\u003ecpu` and `conn-\u003ejiffies32` in insert_tree().\\n\\nBUG: KMSAN: uninit-value in find_or_evict net/netfilter/nf_conncount.c:117 [inline]\\nBUG: KMSAN: uninit-value in __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143\\n find_or_evict net/netfilter/nf_conncount.c:117 [inline]\\n __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143\\n count_tree net/netfilter/nf_conncount.c:438 [inline]\\n nf_conncount_count+0x82f/0x1e80 net/netfilter/nf_conncount.c:521\\n connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72\\n __nft_match_eval net/netfilter/nft_compat.c:403 [inline]\\n nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433\\n expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\\n nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288\\n nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23\\n nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\\n nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\\n nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663\\n NF_HOOK_LIST include/linux/netfilter.h:350 [inline]\\n ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633\\n ip_list_rcv+0x9ef/0xa40 net/ipv4/ip_input.c:669\\n __netif_receive_skb_list_ptype net/core/dev.c:5936 [inline]\\n __netif_receive_skb_list_core+0x15c5/0x1670 net/core/dev.c:5983\\n __netif_receive_skb_list net/core/dev.c:6035 [inline]\\n netif_receive_skb_list_internal+0x1085/0x1700 net/core/dev.c:6126\\n netif_receive_skb_list+0x5a/0x460 net/core/dev.c:6178\\n xdp_recv_frames net/bpf/test_run.c:280 [inline]\\n xdp_test_run_batch net/bpf/test_run.c:361 [inline]\\n bpf_test_run_xdp_live+0x2e86/0x3480 net/bpf/test_run.c:390\\n bpf_prog_test_run_xdp+0xf1d/0x1ae0 net/bpf/test_run.c:1316\\n bpf_prog_test_run+0x5e5/0xa30 kernel/bpf/syscall.c:4407\\n __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5813\\n __do_sys_bpf kernel/bpf/syscall.c:5902 [inline]\\n __se_sys_bpf kernel/bpf/syscall.c:5900 [inline]\\n __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5900\\n ia32_sys_call+0x394d/0x4180 arch/x86/include/generated/asm/syscalls_32.h:358\\n do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]\\n __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387\\n do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412\\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450\\n entry_SYSENTER_compat_after_hwframe+0x84/0x8e\\n\\nUninit was created at:\\n slab_post_alloc_hook mm/slub.c:4121 [inline]\\n slab_alloc_node mm/slub.c:4164 [inline]\\n kmem_cache_alloc_noprof+0x915/0xe10 mm/slub.c:4171\\n insert_tree net/netfilter/nf_conncount.c:372 [inline]\\n count_tree net/netfilter/nf_conncount.c:450 [inline]\\n nf_conncount_count+0x1415/0x1e80 net/netfilter/nf_conncount.c:521\\n connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72\\n __nft_match_eval net/netfilter/nft_compat.c:403 [inline]\\n nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433\\n expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\\n nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288\\n nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23\\n nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\\n nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\\n nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663\\n NF_HOOK_LIST include/linux/netfilter.h:350 [inline]\\n ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633\\n ip_list_rcv+0x9ef/0xa40 net/ip\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_conncount: Inicializar completamente la estructura nf_conncount_tuple en insert_tree() Desde el commit b36e4523d4d5 (\\\"netfilter: nf_conncount: corregir la carrera de confirmaci\u00f3n de la recolecci\u00f3n de basura\\\"), se introdujeron `cpu` y `jiffies32` en la estructura nf_conncount_tuple. El commit hizo que nf_conncount_add() inicializara `conn-\u0026gt;cpu` y `conn-\u0026gt;jiffies32` al asignar la estructura. Por el contrario, count_tree() no se modific\u00f3 para inicializarlas. Mediante el commit 34848d5c896e (\\\"netfilter: nf_conncount: Dividir la inserci\u00f3n y el recorrido\\\"), count_tree() se dividi\u00f3 y el c\u00f3digo de asignaci\u00f3n relevante ahora reside en insert_tree(). Inicialice `conn-\u0026gt;cpu` y `conn-\u0026gt;jiffies32` en insert_tree(). ERROR: KMSAN: valor no inicializado en find_or_evict net/netfilter/nf_conncount.c:117 [en l\u00ednea] ERROR: KMSAN: valor no inicializado en __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143 find_or_evict net/netfilter/nf_conncount.c:117 [en l\u00ednea] __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143 count_tree net/netfilter/nf_conncount.c:438 [en l\u00ednea] nf_conncount_count+0x82f/0x1e80 net/netfilter/nf_conncount.c:521 connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72 __nft_match_eval net/netfilter/nft_compat.c:403 [en l\u00ednea] nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [en l\u00ednea] nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288 nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23 nf_hook_entry_hookfn incluir/linux/netfilter.h:154 [en l\u00ednea] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663 NF_HOOK_LIST incluir/linux/netfilter.h:350 [en l\u00ednea] ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633 ip_list_rcv+0x9ef/0xa40 net/ipv4/ip_input.c:669 __netif_receive_skb_list_ptype net/core/dev.c:5936 [en l\u00ednea] __netif_receive_skb_list_core+0x15c5/0x1670 net/core/dev.c:5983 __netif_receive_skb_list net/core/dev.c:6035 [en l\u00ednea] netif_receive_skb_list_internal+0x1085/0x1700 net/core/dev.c:6126 netif_receive_skb_list+0x5a/0x460 net/core/dev.c:6178 xdp_recv_frames net/bpf/test_run.c:280 [en l\u00ednea] xdp_test_run_batch net/bpf/test_run.c:361 [en l\u00ednea] bpf_test_run_xdp_live+0x2e86/0x3480 net/bpf/test_run.c:390 bpf_prog_test_run_xdp+0xf1d/0x1ae0 net/bpf/test_run.c:1316 bpf_prog_test_run+0x5e5/0xa30 kernel/bpf/syscall.c:4407 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5813 __do_sys_bpf kernel/bpf/syscall.c:5902 [en l\u00ednea] __se_sys_bpf kernel/bpf/syscall.c:5900 [en l\u00ednea] __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5900 ia32_sys_call+0x394d/0x4180 arch/x86/include/generated/asm/syscalls_32.h:358 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [en l\u00ednea] __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450 entry_SYSENTER_compat_after_hwframe+0x84/0x8e Uninit se cre\u00f3 en: slab_post_alloc_hook mm/slub.c:4121 [en l\u00ednea] slab_alloc_node mm/slub.c:4164 [en l\u00ednea] kmem_cache_alloc_noprof+0x915/0xe10 mm/slub.c:4171 \u00e1rbol_de_inserci\u00f3n net/netfilter/nf_conncount.c:372 [en l\u00ednea] \u00e1rbol_de_conteo net/netfilter/nf_conncount.c:450 [en l\u00ednea] nf_conncount_count+0x1415/0x1e80 net/netfilter/nf_conncount.c:521 connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72 __nft_match_eval net/netfilter/nft_compat.c:403 [en l\u00ednea] nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [en l\u00ednea] nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288 nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23 nf_hook_entry_hookfn include/linux/netfilter.h:154 [en l\u00ednea] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663 NF_HOOK_LIST include/linux/netfilter.h:350 [en l\u00ednea] ip_sublist_rcv+0x17b7/0x17f0 ---truncado---\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"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},{\"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}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-908\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-908\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.92\",\"versionEndExcluding\":\"4.15\",\"matchCriteriaId\":\"38A1AC7C-17D5-4E10-97A0-ED3637CD9D40\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.18\",\"versionEndExcluding\":\"5.4.292\",\"matchCriteriaId\":\"1A0A6CD9-3ED4-4FB3-80EE-9BF216598C6C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.236\",\"matchCriteriaId\":\"1DF46FB0-9163-4ABE-8CCA-32A497D4715B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.180\",\"matchCriteriaId\":\"D19801C8-3D18-405D-9989-E6C9B30255FA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.132\",\"matchCriteriaId\":\"91D1C2F6-55A1-4CF4-AC66-ADF758259C59\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.84\",\"matchCriteriaId\":\"994E0F00-FAC4-40E4-9068-C7D4D8242EC8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.20\",\"matchCriteriaId\":\"60E9C5DF-D778-4572-848A-5D6CFFE022CA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.13.8\",\"matchCriteriaId\":\"0A20D4D7-B329-4C68-B662-76062EA7DCF0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"186716B6-2B66-4BD0-852E-D48E71C0C85F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D3E781C-403A-498F-9DA9-ECEE50F41E75\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"66619FB8-0AAF-4166-B2CF-67B24143261D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"D3D6550E-6679-4560-902D-AF52DCFE905B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"45B90F6B-BEC7-4D4E-883A-9DBADE021750\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"1759FFB7-531C-41B1-9AE1-FD3D80E0D920\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2a154ce766b995494e88d8d117fa82cc6b73dd87\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2db5baaf047a7c8d6ed5e2cc657b7854e155b7fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a62a25c6ad58fae997f48a0749afeda1c252ae51\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d653bfeb07ebb3499c403404c21ac58a16531607\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/db1e0c0856821c59a32ea3af79476bf20a6beeb2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e8544a5a97bee3674e7cd6bf0f3a4af517fa9146\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f522229c5563b59b4240261e406779bba6754159\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fda50302a13701d47fbe01e1739c7a51114144fb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T19:40:01.234Z\"}}, {\"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-2025-21959\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T17:15:56.023953Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-908\", \"description\": \"CWE-908 Use of Uninitialized Resource\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T14:38:26.723Z\"}}], \"cna\": {\"title\": \"netfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452\", \"lessThan\": \"f522229c5563b59b4240261e406779bba6754159\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452\", \"lessThan\": \"2a154ce766b995494e88d8d117fa82cc6b73dd87\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452\", \"lessThan\": \"e8544a5a97bee3674e7cd6bf0f3a4af517fa9146\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452\", \"lessThan\": \"a62a25c6ad58fae997f48a0749afeda1c252ae51\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452\", \"lessThan\": \"fda50302a13701d47fbe01e1739c7a51114144fb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452\", \"lessThan\": \"db1e0c0856821c59a32ea3af79476bf20a6beeb2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452\", \"lessThan\": \"2db5baaf047a7c8d6ed5e2cc657b7854e155b7fc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b36e4523d4d56e2595e28f16f6ccf1cd6a9fc452\", \"lessThan\": \"d653bfeb07ebb3499c403404c21ac58a16531607\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"75af3d78168e654a5cd8bbc4c774f97be836165f\", \"versionType\": \"git\"}], \"programFiles\": [\"net/netfilter/nf_conncount.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.18\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.18\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.292\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.236\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.180\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.132\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.84\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.20\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.13.*\"}, {\"status\": \"unaffected\", \"version\": \"6.14\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/netfilter/nf_conncount.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f522229c5563b59b4240261e406779bba6754159\"}, {\"url\": \"https://git.kernel.org/stable/c/2a154ce766b995494e88d8d117fa82cc6b73dd87\"}, {\"url\": \"https://git.kernel.org/stable/c/e8544a5a97bee3674e7cd6bf0f3a4af517fa9146\"}, {\"url\": \"https://git.kernel.org/stable/c/a62a25c6ad58fae997f48a0749afeda1c252ae51\"}, {\"url\": \"https://git.kernel.org/stable/c/fda50302a13701d47fbe01e1739c7a51114144fb\"}, {\"url\": \"https://git.kernel.org/stable/c/db1e0c0856821c59a32ea3af79476bf20a6beeb2\"}, {\"url\": \"https://git.kernel.org/stable/c/2db5baaf047a7c8d6ed5e2cc657b7854e155b7fc\"}, {\"url\": \"https://git.kernel.org/stable/c/d653bfeb07ebb3499c403404c21ac58a16531607\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()\\n\\nSince commit b36e4523d4d5 (\\\"netfilter: nf_conncount: fix garbage\\ncollection confirm race\\\"), `cpu` and `jiffies32` were introduced to\\nthe struct nf_conncount_tuple.\\n\\nThe commit made nf_conncount_add() initialize `conn-\u003ecpu` and\\n`conn-\u003ejiffies32` when allocating the struct.\\nIn contrast, count_tree() was not changed to initialize them.\\n\\nBy commit 34848d5c896e (\\\"netfilter: nf_conncount: Split insert and\\ntraversal\\\"), count_tree() was split and the relevant allocation\\ncode now resides in insert_tree().\\nInitialize `conn-\u003ecpu` and `conn-\u003ejiffies32` in insert_tree().\\n\\nBUG: KMSAN: uninit-value in find_or_evict net/netfilter/nf_conncount.c:117 [inline]\\nBUG: KMSAN: uninit-value in __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143\\n find_or_evict net/netfilter/nf_conncount.c:117 [inline]\\n __nf_conncount_add+0xd9c/0x2850 net/netfilter/nf_conncount.c:143\\n count_tree net/netfilter/nf_conncount.c:438 [inline]\\n nf_conncount_count+0x82f/0x1e80 net/netfilter/nf_conncount.c:521\\n connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72\\n __nft_match_eval net/netfilter/nft_compat.c:403 [inline]\\n nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433\\n expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\\n nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288\\n nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23\\n nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\\n nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\\n nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663\\n NF_HOOK_LIST include/linux/netfilter.h:350 [inline]\\n ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633\\n ip_list_rcv+0x9ef/0xa40 net/ipv4/ip_input.c:669\\n __netif_receive_skb_list_ptype net/core/dev.c:5936 [inline]\\n __netif_receive_skb_list_core+0x15c5/0x1670 net/core/dev.c:5983\\n __netif_receive_skb_list net/core/dev.c:6035 [inline]\\n netif_receive_skb_list_internal+0x1085/0x1700 net/core/dev.c:6126\\n netif_receive_skb_list+0x5a/0x460 net/core/dev.c:6178\\n xdp_recv_frames net/bpf/test_run.c:280 [inline]\\n xdp_test_run_batch net/bpf/test_run.c:361 [inline]\\n bpf_test_run_xdp_live+0x2e86/0x3480 net/bpf/test_run.c:390\\n bpf_prog_test_run_xdp+0xf1d/0x1ae0 net/bpf/test_run.c:1316\\n bpf_prog_test_run+0x5e5/0xa30 kernel/bpf/syscall.c:4407\\n __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5813\\n __do_sys_bpf kernel/bpf/syscall.c:5902 [inline]\\n __se_sys_bpf kernel/bpf/syscall.c:5900 [inline]\\n __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5900\\n ia32_sys_call+0x394d/0x4180 arch/x86/include/generated/asm/syscalls_32.h:358\\n do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]\\n __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:387\\n do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:412\\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:450\\n entry_SYSENTER_compat_after_hwframe+0x84/0x8e\\n\\nUninit was created at:\\n slab_post_alloc_hook mm/slub.c:4121 [inline]\\n slab_alloc_node mm/slub.c:4164 [inline]\\n kmem_cache_alloc_noprof+0x915/0xe10 mm/slub.c:4171\\n insert_tree net/netfilter/nf_conncount.c:372 [inline]\\n count_tree net/netfilter/nf_conncount.c:450 [inline]\\n nf_conncount_count+0x1415/0x1e80 net/netfilter/nf_conncount.c:521\\n connlimit_mt+0x7f6/0xbd0 net/netfilter/xt_connlimit.c:72\\n __nft_match_eval net/netfilter/nft_compat.c:403 [inline]\\n nft_match_eval+0x1a5/0x300 net/netfilter/nft_compat.c:433\\n expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\\n nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288\\n nft_do_chain_ipv4+0x1a5/0x230 net/netfilter/nft_chain_filter.c:23\\n nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\\n nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\\n nf_hook_slow_list+0x24d/0x860 net/netfilter/core.c:663\\n NF_HOOK_LIST include/linux/netfilter.h:350 [inline]\\n ip_sublist_rcv+0x17b7/0x17f0 net/ipv4/ip_input.c:633\\n ip_list_rcv+0x9ef/0xa40 net/ip\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.292\", \"versionStartIncluding\": \"4.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.236\", \"versionStartIncluding\": \"4.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.180\", \"versionStartIncluding\": \"4.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.132\", \"versionStartIncluding\": \"4.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.84\", \"versionStartIncluding\": \"4.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.20\", \"versionStartIncluding\": \"4.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13.8\", \"versionStartIncluding\": \"4.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.14\", \"versionStartIncluding\": \"4.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.14.92\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T13:06:49.497Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-21959\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T19:40:01.234Z\", \"dateReserved\": \"2024-12-29T08:45:45.793Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-04-01T15:46:57.775Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.



Detection rules are retrieved from Rulezet.