CVE-2025-38075
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: iscsi: Fix timeout on deleted connection
NOPIN response timer may expire on a deleted connection and crash with such logs:
Did not receive response to NOPIN on CID: 0, failing connection for I_T Nexus (null),i,0x00023d000125,iqn.2017-01.com.iscsi.target,t,0x3d
That is because nopin response timer may be re-started on nopin timer expiration.
Stop nopin timer before stopping the nopin response timer to be sure that no one of them will be re-started.
Detalles técnicos trazas, registros y código del informe original
BUG: Kernel NULL pointer dereference on read at 0x00000000 NIP strlcpy+0x8/0xb0 LR iscsit_fill_cxn_timeout_err_stats+0x5c/0xc0 [iscsi_target_mod] Call Trace: iscsit_handle_nopin_response_timeout+0xfc/0x120 [iscsi_target_mod] call_timer_fn+0x58/0x1f0 run_timer_softirq+0x740/0x860 __do_softirq+0x16c/0x420 irq_exit+0x188/0x1c0 timer_interrupt+0x184/0x410
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.45%
- Percentil entre todas las CVEs puntuadas: 37
- 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 (2)
CWE
- CWE-476
Referencias
- https://git.kernel.org/stable/c/019ca2804f3fb49a7f8e56ea6aeaa1ff32724c27
- https://git.kernel.org/stable/c/2c5081439c7ab8da08427befe427f0d732ebc9f9
- https://git.kernel.org/stable/c/3e6429e3707943078240a2c0c0b3ee99ea9b0d9c
- https://git.kernel.org/stable/c/571ce6b6f5cbaf7d24af03cad592fc0e2a54de35
- https://git.kernel.org/stable/c/6815846e0c3a62116a7da9740e3a7c10edc5c7e9
- https://git.kernel.org/stable/c/7f533cc5ee4c4436cee51dc58e81dfd9c3384418
- https://git.kernel.org/stable/c/87389bff743c55b6b85282de91109391f43e0814
- https://git.kernel.org/stable/c/fe8421e853ef289e1324fcda004751c89dd9c18a
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iscsi: Fix timeout on deleted connection\n\nNOPIN response timer may expire on a deleted connection and crash with\nsuch logs:\n\nDid not receive response to NOPIN on CID: 0, failing connection for I_T Nexus (null),i,0x00023d000125,iqn.2017-01.com.iscsi.target,t,0x3d\n\nBUG: Kernel NULL pointer dereference on read at 0x00000000\nNIP strlcpy+0x8/0xb0\nLR iscsit_fill_cxn_timeout_err_stats+0x5c/0xc0 [iscsi_target_mod]\nCall Trace:\n iscsit_handle_nopin_response_timeout+0xfc/0x120 [iscsi_target_mod]\n call_timer_fn+0x58/0x1f0\n run_timer_softirq+0x740/0x860\n __do_softirq+0x16c/0x420\n irq_exit+0x188/0x1c0\n timer_interrupt+0x184/0x410\n\nThat is because nopin response timer may be re-started on nopin timer\nexpiration.\n\nStop nopin timer before stopping the nopin response timer to be sure\nthat no one of them will be re-started."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: target: iscsi: Se corrige el tiempo de espera en la conexión eliminada. El temporizador de respuesta NOPIN puede expirar en una conexión eliminada y bloquearse con dichos registros: No se recibió respuesta a NOPIN en CID: 0, falla de conexión para I_T Nexus (nulo),i,0x00023d000125,iqn.2017-01.com.iscsi.target,t,0x3d ERROR: Desreferencia de puntero NULL del kernel en lectura en 0x00000000 NIP strlcpy+0x8/0xb0 LR iscsit_fill_cxn_timeout_err_stats+0x5c/0xc0 [iscsi_target_mod] Rastreo de llamadas: iscsit_handle_nopin_response_timeout+0xfc/0x120 [iscsi_target_mod] call_timer_fn+0x58/0x1f0 run_timer_softirq+0x740/0x860 __do_softirq+0x16c/0x420 irq_exit+0x188/0x1c0 timer_interrupt+0x184/0x410 Esto se debe a que el temporizador de respuesta de nopin puede reiniciarse al expirar. Deténgalo antes de detener el temporizador de respuesta de nopin para asegurarse de que ninguno de ellos se reinicie."
}
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