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cvelist/2024/26xxx/CVE-2024-26961.json

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"-Synchronized-Data."
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{
"-Synchronized-Data."
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"data_version": "4.0",
"-Synchronized-Data."
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"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-26961",
"-Synchronized-Data."
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"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
"-Synchronized-Data."
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},
"description": {
"description_data": [
{
"lang": "eng",
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"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 <TASK>\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 [<ffffffff81dcfa62>] __kmem_cache_alloc_node+0x1e2/0x2d0\n [<ffffffff81c43865>] kmalloc_trace+0x25/0xc0\n [<ffffffff88968b09>] mac802154_llsec_key_add+0xac9/0xcf0\n [<ffffffff8896e41a>] ieee802154_add_llsec_key+0x5a/0x80\n [<ffffffff8892adc6>] nl802154_add_llsec_key+0x426/0x5b0\n [<ffffffff86ff293e>] genl_family_rcv_msg_doit+0x1fe/0x2f0\n [<ffffffff86ff46d1>] genl_rcv_msg+0x531/0x7d0\n [<ffffffff86fee7a9>] netlink_rcv_skb+0x169/0x440\n [<ffffffff86ff1d88>] genl_rcv+0x28/0x40\n [<ffffffff86fec15c>] netlink_unicast+0x53c/0x820\n [<ffffffff86fecd8b>] netlink_sendmsg+0x93b/0xe60\n [<ffffffff86b91b35>] ____sys_sendmsg+0xac5/0xca0\n [<ffffffff86b9c3dd>] ___sys_sendmsg+0x11d/0x1c0\n [<ffffffff86b9c65a>] __sys_sendmsg+0xfa/0x1d0\n [<ffffffff88eadbf5>] do_syscall_64+0x45/0xf0\n [<ffffffff890000ea>] 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's 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)."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "5d637d5aabd8",
"version_value": "068ab2759bc0"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "3.16",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.16",
"status": "unaffected",
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"versionType": "semver"
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},
{
"version": "5.10.215",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
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},
{
"version": "5.15.154",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "6.1.84",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "6.6.24",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "6.7.12",
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
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},
{
"version": "6.8.3",
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
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},
{
"-Synchronized-Data."
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"version": "6.9",
"-Synchronized-Data."
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"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/068ab2759bc0b4daf0b964de61b2731449c86531",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/068ab2759bc0b4daf0b964de61b2731449c86531"
},
{
"url": "https://git.kernel.org/stable/c/d3d858650933d44ac12c1f31337e7110c2071821",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/d3d858650933d44ac12c1f31337e7110c2071821"
},
{
"url": "https://git.kernel.org/stable/c/dcd51ab42b7a0431575689c5f74b8b6efd45fc2f",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/dcd51ab42b7a0431575689c5f74b8b6efd45fc2f"
},
{
"url": "https://git.kernel.org/stable/c/20d3e1c8a1847497269f04d874b2a5818ec29e2d",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/20d3e1c8a1847497269f04d874b2a5818ec29e2d"
},
{
"url": "https://git.kernel.org/stable/c/640297c3e897bd7e1481466a6a5cb9560f1edb88",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/640297c3e897bd7e1481466a6a5cb9560f1edb88"
},
{
"url": "https://git.kernel.org/stable/c/49c8951680d7b76fceaee89dcfbab1363fb24fd1",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/49c8951680d7b76fceaee89dcfbab1363fb24fd1"
},
{
"url": "https://git.kernel.org/stable/c/e8a1e58345cf40b7b272e08ac7b32328b2543e40",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/e8a1e58345cf40b7b272e08ac7b32328b2543e40"
"-Synchronized-Data."
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}
]
"-Synchronized-Data."
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},
"generator": {
"-Synchronized-Data."
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"engine": "bippy-9e1c9544281a"
"-Synchronized-Data."
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}
}
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