FKIE_CVE-2023-53731
Vulnerability from fkie_nvd - Published: 2025-10-22 14:15 - Updated: 2026-10-28 19:10
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
netlink: fix potential deadlock in netlink_set_err()
syzbot reported a possible deadlock in netlink_set_err() [1]
A similar issue was fixed in commit 1d482e666b8e ("netlink: disable IRQs
for netlink_lock_table()") in netlink_lock_table()
This patch adds IRQ safety to netlink_set_err() and __netlink_diag_dump()
which were not covered by cited commit.
[1]
WARNING: possible irq lock inversion dependency detected
6.4.0-rc6-syzkaller-00240-g4e9f0ec38852 #0 Not tainted
syz-executor.2/23011 just changed the state of lock:
ffffffff8e1a7a58 (nl_table_lock){.+.?}-{2:2}, at: netlink_set_err+0x2e/0x3a0 net/netlink/af_netlink.c:1612
but this lock was taken by another, SOFTIRQ-safe lock in the past:
(&local->queue_stop_reason_lock){..-.}-{2:2}
and interrupts could create inverse lock ordering between them.
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(nl_table_lock);
local_irq_disable();
lock(&local->queue_stop_reason_lock);
lock(nl_table_lock);
<Interrupt>
lock(&local->queue_stop_reason_lock);
*** DEADLOCK ***
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netlink/af_netlink.c",
"net/netlink/diag.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "c09e8e3f7fd432984bf5422302b093d2371dfc48",
"status": "affected",
"version": "82b2ea5f904b3826934df4a00f3b8806272185f6",
"versionType": "git"
},
{
"lessThan": "4b9adb8d4a62ff7608d4a7d4eb42036a88f30980",
"status": "affected",
"version": "59fba11d649854134c75ad88c8adafa9304ac419",
"versionType": "git"
},
{
"lessThan": "8f6652ed2ad98fe6d13b903483d9257762ab2ec6",
"status": "affected",
"version": "21df0c2e7d195de4a3c650de9361b3037fa6c59a",
"versionType": "git"
},
{
"lessThan": "cde7b90e0539a3b11da377e463dfd2288a162dbf",
"status": "affected",
"version": "1d6d43d4805da9b3fa0f5841e8b1083c89868f35",
"versionType": "git"
},
{
"lessThan": "a641240b7e071c5538dc0e7894ece833fce459dd",
"status": "affected",
"version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
"versionType": "git"
},
{
"lessThan": "61ffe8b1ee084e5c82a4e4bbf9e7b68e0c06e464",
"status": "affected",
"version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
"versionType": "git"
},
{
"lessThan": "eb8e27c8fa9397b4a7b181c48fa58157dbe9902e",
"status": "affected",
"version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
"versionType": "git"
},
{
"lessThan": "1556ba034b95cfd4f75ea93c1a2679ae0444bba1",
"status": "affected",
"version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
"versionType": "git"
},
{
"lessThan": "8d61f926d42045961e6b65191c09e3678d86a9cf",
"status": "affected",
"version": "1d482e666b8e74c7555dbdfbfb77205eeed3ff2d",
"versionType": "git"
},
{
"status": "affected",
"version": "5f155c4046200f067b1dc3140ea99ef56e4e0b74",
"versionType": "git"
},
{
"status": "affected",
"version": "a8e9111a8625dd11e70edd61f7a1ccd26c041442",
"versionType": "git"
},
{
"status": "affected",
"version": "76cc8e04f38c2bbfcba07f62864a011f142bd40c",
"versionType": "git"
},
{
"lessThan": "4.14.322",
"status": "affected",
"version": "4.14.237",
"versionType": "semver"
},
{
"lessThan": "4.19.291",
"status": "affected",
"version": "4.19.195",
"versionType": "semver"
},
{
"lessThan": "5.4.251",
"status": "affected",
"version": "5.4.126",
"versionType": "semver"
},
{
"lessThan": "5.10.188",
"status": "affected",
"version": "5.10.44",
"versionType": "semver"
},
{
"lessThan": "4.5",
"status": "affected",
"version": "4.4.273",
"versionType": "semver"
},
{
"lessThan": "4.10",
"status": "affected",
"version": "4.9.273",
"versionType": "semver"
},
{
"lessThan": "5.13",
"status": "affected",
"version": "5.12.11",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/netlink/af_netlink.c",
"net/netlink/diag.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.13"
},
{
"lessThan": "5.13",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.322",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.291",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.251",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.188",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.121",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.39",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.3.*",
"status": "unaffected",
"version": "6.3.13",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.*",
"status": "unaffected",
"version": "6.4.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.5",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: fix potential deadlock in netlink_set_err()\n\nsyzbot reported a possible deadlock in netlink_set_err() [1]\n\nA similar issue was fixed in commit 1d482e666b8e (\"netlink: disable IRQs\nfor netlink_lock_table()\") in netlink_lock_table()\n\nThis patch adds IRQ safety to netlink_set_err() and __netlink_diag_dump()\nwhich were not covered by cited commit.\n\n[1]\n\nWARNING: possible irq lock inversion dependency detected\n6.4.0-rc6-syzkaller-00240-g4e9f0ec38852 #0 Not tainted\n\nsyz-executor.2/23011 just changed the state of lock:\nffffffff8e1a7a58 (nl_table_lock){.+.?}-{2:2}, at: netlink_set_err+0x2e/0x3a0 net/netlink/af_netlink.c:1612\nbut this lock was taken by another, SOFTIRQ-safe lock in the past:\n (\u0026local-\u003equeue_stop_reason_lock){..-.}-{2:2}\n\nand interrupts could create inverse lock ordering between them.\n\nother info that might help us debug this:\n Possible interrupt unsafe locking scenario:\n\n CPU0 CPU1\n ---- ----\n lock(nl_table_lock);\n local_irq_disable();\n lock(\u0026local-\u003equeue_stop_reason_lock);\n lock(nl_table_lock);\n \u003cInterrupt\u003e\n lock(\u0026local-\u003equeue_stop_reason_lock);\n\n *** DEADLOCK ***"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnetlink: corrige un interbloqueo potencial en netlink_set_err()\n\nsyzbot inform\u00f3 un posible interbloqueo en netlink_set_err() [1]\n\nUn problema similar fue corregido en el commit 1d482e666b8e (\u2019netlink: deshabilitar IRQs para netlink_lock_table()\u2019) en netlink_lock_table()\n\nEste parche a\u00f1ade seguridad IRQ a netlink_set_err() y __netlink_diag_dump() que no estaban cubiertos por el commit citado.\n\n[1]\n\nADVERTENCIA: dependencia de inversi\u00f3n de bloqueo irq posible detectada\n6.4.0-rc6-syzkaller-00240-g4e9f0ec38852 #0 No contaminado\n\nsyz-executor.2/23011 acaba de cambiar el estado del bloqueo:\nffffffff8e1a7a58 (nl_table_lock){.+.?}-{2:2}, en: netlink_set_err+0x2e/0x3a0 net/netlink/af_netlink.c:1612\npero este bloqueo fue tomado por otro bloqueo seguro para SOFTIRQ en el pasado:\n(\u0026local -\u003e queue_stop_reason_lock){..-.}-{2:2}\n\ny las interrupciones podr\u00edan crear un orden de bloqueo inverso entre ellos.\n\notra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto:\nPosible escenario de bloqueo inseguro por interrupci\u00f3n:\n\n CPU0 CPU1\n ---- ----\n lock(nl_table_lock);\n local_irq_disable();\n lock(\u0026local -\u003e queue_stop_reason_lock);\n lock(nl_table_lock);\n \u003cInterrupci\u00f3n\u003e\n lock(\u0026local -\u003e queue_stop_reason_lock);\n\n* INTERBLOQUEO *"
}
],
"id": "CVE-2023-53731",
"lastModified": "2026-10-28T19:10:00.193",
"metrics": {},
"published": "2025-10-22T14:15:48.423",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1556ba034b95cfd4f75ea93c1a2679ae0444bba1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4b9adb8d4a62ff7608d4a7d4eb42036a88f30980"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/61ffe8b1ee084e5c82a4e4bbf9e7b68e0c06e464"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/8d61f926d42045961e6b65191c09e3678d86a9cf"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/8f6652ed2ad98fe6d13b903483d9257762ab2ec6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a641240b7e071c5538dc0e7894ece833fce459dd"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c09e8e3f7fd432984bf5422302b093d2371dfc48"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cde7b90e0539a3b11da377e463dfd2288a162dbf"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/eb8e27c8fa9397b4a7b181c48fa58157dbe9902e"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
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