CVE-2026-98559
Estado: RecibidaSin puntuar—
Gravedad—Sin puntuar
Probabilidad de explotación0.21 %mayor que el 10 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado
En el kernel de Linux se ha resuelto la siguiente vulnerabilidad:
net/smc: corregir UAF en el recorrido de la lista lgr en smcr_port_err()
smcr_port_err() recorre smc_lgr_list.list sin mantener smc_lgr_list.lock, lo que permite que una llamada concurrente a smc_lgr_terminate_sched() libere un lgr mientras todavía se está desreferenciando.
Mantener smc_lgr_list.lock durante todo el recorrido. Actualizar smc_ib_gid_check() para llamar a smcr_port_err() después de liberar el bloqueo.
Traducción automática del texto original de NVD (en inglés).
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
- 0.21 %
- Percentil entre todas las CVEs puntuadas
- 10
- Fecha de la puntuación
- 20/10/2026
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
Mostrar las 7 referencias
- https://git.kernel.org/stable/c/00a59600ae72d24859d0ad1783a78bc921bc2599
- https://git.kernel.org/stable/c/0edcc4284392b28826b5d37532b366b291e6e0fa
- https://git.kernel.org/stable/c/34bcf11cd2528ae00bb6d764d808083c66824277
- https://git.kernel.org/stable/c/3d35f069e1c119992000d51236dbe54da2d4e61e
- https://git.kernel.org/stable/c/3d65a2eb4449fc9658fb860dea893025d028d90e
- https://git.kernel.org/stable/c/61cb282fe97b3b0ba32ca09417a693162bf4ae3f
- https://git.kernel.org/stable/c/a9b968e42690d784c241a0761c10253271f7df5d
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-98559",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "541afa10c126b6c22c2a805a559c70cc41fd156e",
"lessThan": "34bcf11cd2528ae00bb6d764d808083c66824277",
"versionType": "git"
},
{
"status": "affected",
"version": "541afa10c126b6c22c2a805a559c70cc41fd156e",
"lessThan": "0edcc4284392b28826b5d37532b366b291e6e0fa",
"versionType": "git"
},
{
"status": "affected",
"version": "541afa10c126b6c22c2a805a559c70cc41fd156e",
"lessThan": "00a59600ae72d24859d0ad1783a78bc921bc2599",
"versionType": "git"
},
{
"status": "affected",
"version": "541afa10c126b6c22c2a805a559c70cc41fd156e",
"lessThan": "3d35f069e1c119992000d51236dbe54da2d4e61e",
"versionType": "git"
},
{
"status": "affected",
"version": "541afa10c126b6c22c2a805a559c70cc41fd156e",
"lessThan": "3d65a2eb4449fc9658fb860dea893025d028d90e",
"versionType": "git"
},
{
"status": "affected",
"version": "541afa10c126b6c22c2a805a559c70cc41fd156e",
"lessThan": "a9b968e42690d784c241a0761c10253271f7df5d",
"versionType": "git"
},
{
"status": "affected",
"version": "541afa10c126b6c22c2a805a559c70cc41fd156e",
"lessThan": "61cb282fe97b3b0ba32ca09417a693162bf4ae3f",
"versionType": "git"
}
],
"programFiles": [
"net/smc/smc_core.c",
"net/smc/smc_ib.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/smc/smc_core.c",
"net/smc/smc_ib.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-10-18T16:17:08.033",
"references": [
{
"url": "https://git.kernel.org/stable/c/00a59600ae72d24859d0ad1783a78bc921bc2599",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/0edcc4284392b28826b5d37532b366b291e6e0fa",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/34bcf11cd2528ae00bb6d764d808083c66824277",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3d35f069e1c119992000d51236dbe54da2d4e61e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3d65a2eb4449fc9658fb860dea893025d028d90e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/61cb282fe97b3b0ba32ca09417a693162bf4ae3f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/a9b968e42690d784c241a0761c10253271f7df5d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix UAF on lgr list traversal in smcr_port_err()\n\nsmcr_port_err() traverses smc_lgr_list.list without holding\nsmc_lgr_list.lock, allowing a concurrent smc_lgr_terminate_sched()\nto free an lgr while it is still being dereferenced.\n\nHold smc_lgr_list.lock across the traversal. Update\nsmc_ib_gid_check() to call smcr_port_err() after releasing the lock."
}
],
"lastModified": "2026-10-19T10:19:12.447",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}