CVE-2024-26961 (GCVE-0-2024-26961)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:19 – Updated: 2025-05-04 09:00
VLAI?
Title
mac802154: fix llsec key resources release in mac802154_llsec_key_del
Summary
In the Linux kernel, the following vulnerability has been resolved: mac802154: fix llsec key resources release in mac802154_llsec_key_del mac802154_llsec_key_del() can free resources of a key directly without following the RCU rules for waiting before the end of a grace period. This may lead to use-after-free in case llsec_lookup_key() is traversing the list of keys in parallel with a key deletion: refcount_t: addition on 0; use-after-free. WARNING: CPU: 4 PID: 16000 at lib/refcount.c:25 refcount_warn_saturate+0x162/0x2a0 Modules linked in: CPU: 4 PID: 16000 Comm: wpan-ping Not tainted 6.7.0 #19 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:refcount_warn_saturate+0x162/0x2a0 Call Trace: <TASK> llsec_lookup_key.isra.0+0x890/0x9e0 mac802154_llsec_encrypt+0x30c/0x9c0 ieee802154_subif_start_xmit+0x24/0x1e0 dev_hard_start_xmit+0x13e/0x690 sch_direct_xmit+0x2ae/0xbc0 __dev_queue_xmit+0x11dd/0x3c20 dgram_sendmsg+0x90b/0xd60 __sys_sendto+0x466/0x4c0 __x64_sys_sendto+0xe0/0x1c0 do_syscall_64+0x45/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 Also, ieee802154_llsec_key_entry structures are not freed by mac802154_llsec_key_del(): unreferenced object 0xffff8880613b6980 (size 64): comm "iwpan", pid 2176, jiffies 4294761134 (age 60.475s) hex dump (first 32 bytes): 78 0d 8f 18 80 88 ff ff 22 01 00 00 00 00 ad de x......."....... 00 00 00 00 00 00 00 00 03 00 cd ab 00 00 00 00 ................ backtrace: [<ffffffff81dcfa62>] __kmem_cache_alloc_node+0x1e2/0x2d0 [<ffffffff81c43865>] kmalloc_trace+0x25/0xc0 [<ffffffff88968b09>] mac802154_llsec_key_add+0xac9/0xcf0 [<ffffffff8896e41a>] ieee802154_add_llsec_key+0x5a/0x80 [<ffffffff8892adc6>] nl802154_add_llsec_key+0x426/0x5b0 [<ffffffff86ff293e>] genl_family_rcv_msg_doit+0x1fe/0x2f0 [<ffffffff86ff46d1>] genl_rcv_msg+0x531/0x7d0 [<ffffffff86fee7a9>] netlink_rcv_skb+0x169/0x440 [<ffffffff86ff1d88>] genl_rcv+0x28/0x40 [<ffffffff86fec15c>] netlink_unicast+0x53c/0x820 [<ffffffff86fecd8b>] netlink_sendmsg+0x93b/0xe60 [<ffffffff86b91b35>] ____sys_sendmsg+0xac5/0xca0 [<ffffffff86b9c3dd>] ___sys_sendmsg+0x11d/0x1c0 [<ffffffff86b9c65a>] __sys_sendmsg+0xfa/0x1d0 [<ffffffff88eadbf5>] do_syscall_64+0x45/0xf0 [<ffffffff890000ea>] entry_SYSCALL_64_after_hwframe+0x6e/0x76 Handle the proper resource release in the RCU callback function mac802154_llsec_key_del_rcu(). Note that if llsec_lookup_key() finds a key, it gets a refcount via llsec_key_get() and locally copies key id from key_entry (which is a list element). So it's safe to call llsec_key_put() and free the list entry after the RCU grace period elapses. Found by Linux Verification Center (linuxtesting.org).
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5d637d5aabd85132bd85779677d8acb708e0ed90 , < 068ab2759bc0b4daf0b964de61b2731449c86531 (git)
Affected: 5d637d5aabd85132bd85779677d8acb708e0ed90 , < d3d858650933d44ac12c1f31337e7110c2071821 (git)
Affected: 5d637d5aabd85132bd85779677d8acb708e0ed90 , < dcd51ab42b7a0431575689c5f74b8b6efd45fc2f (git)
Affected: 5d637d5aabd85132bd85779677d8acb708e0ed90 , < 20d3e1c8a1847497269f04d874b2a5818ec29e2d (git)
Affected: 5d637d5aabd85132bd85779677d8acb708e0ed90 , < 640297c3e897bd7e1481466a6a5cb9560f1edb88 (git)
Affected: 5d637d5aabd85132bd85779677d8acb708e0ed90 , < 49c8951680d7b76fceaee89dcfbab1363fb24fd1 (git)
Affected: 5d637d5aabd85132bd85779677d8acb708e0ed90 , < e8a1e58345cf40b7b272e08ac7b32328b2543e40 (git)
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    Linux Linux Affected: 3.16
Unaffected: 0 , < 3.16 (semver)
Unaffected: 5.10.215 , ≤ 5.10.* (semver)
Unaffected: 5.15.154 , ≤ 5.15.* (semver)
Unaffected: 6.1.84 , ≤ 6.1.* (semver)
Unaffected: 6.6.24 , ≤ 6.6.* (semver)
Unaffected: 6.7.12 , ≤ 6.7.* (semver)
Unaffected: 6.8.3 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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\"49c8951680d7b76fceaee89dcfbab1363fb24fd1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5d637d5aabd85132bd85779677d8acb708e0ed90\", \"lessThan\": \"e8a1e58345cf40b7b272e08ac7b32328b2543e40\", \"versionType\": \"git\"}], \"programFiles\": [\"include/net/cfg802154.h\", \"net/mac802154/llsec.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.16\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.16\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.215\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.154\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.84\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.24\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"include/net/cfg802154.h\", \"net/mac802154/llsec.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/068ab2759bc0b4daf0b964de61b2731449c86531\"}, {\"url\": \"https://git.kernel.org/stable/c/d3d858650933d44ac12c1f31337e7110c2071821\"}, {\"url\": \"https://git.kernel.org/stable/c/dcd51ab42b7a0431575689c5f74b8b6efd45fc2f\"}, {\"url\": \"https://git.kernel.org/stable/c/20d3e1c8a1847497269f04d874b2a5818ec29e2d\"}, {\"url\": \"https://git.kernel.org/stable/c/640297c3e897bd7e1481466a6a5cb9560f1edb88\"}, {\"url\": \"https://git.kernel.org/stable/c/49c8951680d7b76fceaee89dcfbab1363fb24fd1\"}, {\"url\": \"https://git.kernel.org/stable/c/e8a1e58345cf40b7b272e08ac7b32328b2543e40\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmac802154: fix llsec key resources release in mac802154_llsec_key_del\\n\\nmac802154_llsec_key_del() can free resources of a key directly without\\nfollowing the RCU rules for waiting before the end of a grace period. This\\nmay lead to use-after-free in case llsec_lookup_key() is traversing the\\nlist of keys in parallel with a key deletion:\\n\\nrefcount_t: addition on 0; use-after-free.\\nWARNING: CPU: 4 PID: 16000 at lib/refcount.c:25 refcount_warn_saturate+0x162/0x2a0\\nModules linked in:\\nCPU: 4 PID: 16000 Comm: wpan-ping Not tainted 6.7.0 #19\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014\\nRIP: 0010:refcount_warn_saturate+0x162/0x2a0\\nCall Trace:\\n \u003cTASK\u003e\\n llsec_lookup_key.isra.0+0x890/0x9e0\\n mac802154_llsec_encrypt+0x30c/0x9c0\\n ieee802154_subif_start_xmit+0x24/0x1e0\\n dev_hard_start_xmit+0x13e/0x690\\n sch_direct_xmit+0x2ae/0xbc0\\n __dev_queue_xmit+0x11dd/0x3c20\\n dgram_sendmsg+0x90b/0xd60\\n __sys_sendto+0x466/0x4c0\\n __x64_sys_sendto+0xe0/0x1c0\\n do_syscall_64+0x45/0xf0\\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n\\nAlso, ieee802154_llsec_key_entry structures are not freed by\\nmac802154_llsec_key_del():\\n\\nunreferenced object 0xffff8880613b6980 (size 64):\\n  comm \\\"iwpan\\\", pid 2176, jiffies 4294761134 (age 60.475s)\\n  hex dump (first 32 bytes):\\n    78 0d 8f 18 80 88 ff ff 22 01 00 00 00 00 ad de  x.......\\\".......\\n    00 00 00 00 00 00 00 00 03 00 cd ab 00 00 00 00  ................\\n  backtrace:\\n    [\u003cffffffff81dcfa62\u003e] __kmem_cache_alloc_node+0x1e2/0x2d0\\n    [\u003cffffffff81c43865\u003e] kmalloc_trace+0x25/0xc0\\n    [\u003cffffffff88968b09\u003e] mac802154_llsec_key_add+0xac9/0xcf0\\n    [\u003cffffffff8896e41a\u003e] ieee802154_add_llsec_key+0x5a/0x80\\n    [\u003cffffffff8892adc6\u003e] nl802154_add_llsec_key+0x426/0x5b0\\n    [\u003cffffffff86ff293e\u003e] genl_family_rcv_msg_doit+0x1fe/0x2f0\\n    [\u003cffffffff86ff46d1\u003e] genl_rcv_msg+0x531/0x7d0\\n    [\u003cffffffff86fee7a9\u003e] netlink_rcv_skb+0x169/0x440\\n    [\u003cffffffff86ff1d88\u003e] genl_rcv+0x28/0x40\\n    [\u003cffffffff86fec15c\u003e] netlink_unicast+0x53c/0x820\\n    [\u003cffffffff86fecd8b\u003e] netlink_sendmsg+0x93b/0xe60\\n    [\u003cffffffff86b91b35\u003e] ____sys_sendmsg+0xac5/0xca0\\n    [\u003cffffffff86b9c3dd\u003e] ___sys_sendmsg+0x11d/0x1c0\\n    [\u003cffffffff86b9c65a\u003e] __sys_sendmsg+0xfa/0x1d0\\n    [\u003cffffffff88eadbf5\u003e] do_syscall_64+0x45/0xf0\\n    [\u003cffffffff890000ea\u003e] entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n\\nHandle the proper resource release in the RCU callback function\\nmac802154_llsec_key_del_rcu().\\n\\nNote that if llsec_lookup_key() finds a key, it gets a refcount via\\nllsec_key_get() and locally copies key id from key_entry (which is a\\nlist element). So it\u0027s safe to call llsec_key_put() and free the list\\nentry after the RCU grace period elapses.\\n\\nFound by Linux Verification Center (linuxtesting.org).\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.215\", \"versionStartIncluding\": \"3.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.154\", \"versionStartIncluding\": \"3.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.84\", \"versionStartIncluding\": \"3.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.24\", \"versionStartIncluding\": \"3.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.12\", \"versionStartIncluding\": \"3.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.3\", \"versionStartIncluding\": \"3.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"3.16\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:00:52.446Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26961\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:00:52.446Z\", \"dateReserved\": \"2024-02-19T14:20:24.201Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-01T05:19:16.361Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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  • 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.