CVE-2023-53731
Estado: AplazadaSin puntuar—
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]
and interrupts could create inverse lock ordering between them.
other info that might help us debug this: Possible interrupt unsafe locking scenario:
*** DEADLOCK ***
Detalles técnicos trazas, registros y código del informe original
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}
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);CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.23%
- Percentil entre todas las CVEs puntuadas: 13
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
- https://git.kernel.org/stable/c/1556ba034b95cfd4f75ea93c1a2679ae0444bba1
- https://git.kernel.org/stable/c/4b9adb8d4a62ff7608d4a7d4eb42036a88f30980
- https://git.kernel.org/stable/c/61ffe8b1ee084e5c82a4e4bbf9e7b68e0c06e464
- https://git.kernel.org/stable/c/8d61f926d42045961e6b65191c09e3678d86a9cf
- https://git.kernel.org/stable/c/8f6652ed2ad98fe6d13b903483d9257762ab2ec6
- https://git.kernel.org/stable/c/a641240b7e071c5538dc0e7894ece833fce459dd
- https://git.kernel.org/stable/c/c09e8e3f7fd432984bf5422302b093d2371dfc48
- https://git.kernel.org/stable/c/cde7b90e0539a3b11da377e463dfd2288a162dbf
- https://git.kernel.org/stable/c/eb8e27c8fa9397b4a7b181c48fa58157dbe9902e
JSON original (NVD)
Mostrar
{
"id": "CVE-2023-53731",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
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{
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{
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{
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{
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{
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"programFiles": [
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],
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},
{
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{
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},
{
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},
{
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},
{
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}
],
"programFiles": [
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"net/netlink/diag.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-10-22T14:15:48.423",
"references": [
{
"url": "https://git.kernel.org/stable/c/1556ba034b95cfd4f75ea93c1a2679ae0444bba1",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
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"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",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"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 (&local->queue_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(&local->queue_stop_reason_lock);\n lock(nl_table_lock);\n <Interrupt>\n lock(&local->queue_stop_reason_lock);\n\n *** DEADLOCK ***"
}
],
"lastModified": "2026-06-17T06:45:58.170",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}