CVE-2022-48666
Estado: ModificadaCrítica (9.8)—
Gravedad9.8Crítica · CVSS 3.1
Probabilidad de explotación0.78 %mayor que el 55 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado
Detalles técnicos trazas, registros y código del informe original
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: core: corrige un use-after-free Hay dos implementaciones de .exit_cmd_priv. Ambas implementaciones utilizan recursos asociados con el host SCSI. Asegúrese de que estos recursos todavía estén disponibles cuando se llame a .exit_cmd_priv esperando dentro de scsi_remove_host() hasta que se haya liberado el conjunto de etiquetas. Esta confirmación corrige el siguiente use-after-free: ======================================== =========================== ERROR: KASAN: use-after-free en srp_exit_cmd_priv+0x27/0xd0 [ib_srp] Lectura de tamaño 8 en addr ffff888100337000 por tarea multipathd/16727 Rastreo de llamadas: dump_stack_lvl+0x34/0x44 print_report.cold+0x5e/0x5db kasan_report+0xab/0x120 srp_exit_cmd_priv+0x27/0xd0 [ib_srp] +0x4d/0x70 blk_mq_free_rqs+0x143/0x410 __blk_mq_free_map_and_rqs+ 0x6e/0x100 blk_mq_free_tag_set+0x2b/0x160 scsi_host_dev_release+0xf3/0x1a0 dispositivo_release+0x54/0xe0 kobject_put+0xa5/0x120 dispositivo_release+0x54/0xe0 kobject_put+0xa5/0x120 +0x4c1/0x4e0 ejecutar_en_contexto_de_proceso+0x23/0x90 liberación_de_dispositivo+0x54/0xe0 kobject_put+ 0xa5/0x120 scsi_disk_release+0x3f/0x50 dispositivo_liberación+0x54/0xe0 kobject_put+0xa5/0x120 disk_release+0x17f/0x1b0 dispositivo_liberación+0x54/0xe0 kobject_put+0xa5/0x120 dm_put_table_device+0xa3/0x160 [dm_mod] dm_put_device+0xd0/0x140 [dm_mod] grupo_prioridad_libre +0xd8/0x110 [dm_multipath] free_multipath+0x94/0xe0 [dm_multipath] dm_table_destroy+0xa2/0x1e0 [dm_mod] __dm_destroy+0x196/0x350 [dm_mod] dev_remove+0x10c/0x160 [dm_mod] 2c2/0x590 [dm_mod] dm_ctl_ioctl+0x5 /0x10 [dm_mod] __x64_sys_ioctl+0xb4/0xf0 dm_ctl_ioctl+0x5/0x10 [dm_mod] __x64_sys_ioctl+0xb4/0xf0 do_syscall_64+0x3b/0x90 entrada_SYSCALL_64_after_hwframe+0x46/0xb 0
CVSS
- Puntuación base
- 9.8
- Versión
- 3.1
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 0.78 %
- Percentil entre todas las CVEs puntuadas
- 55
- Fecha de la puntuación
- 21/10/2026
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)
CWE
- CWE-416
Referencias
Mostrar las 8 referencias
- https://git.kernel.org/stable/c/2e7eb4c1e8af8385de22775bd0be552f59b28c9a
- https://git.kernel.org/stable/c/5ce8fad941233e81f2afb5b52a3fcddd3ba8732f
- https://git.kernel.org/stable/c/8fe4ce5836e932f5766317cb651c1ff2a4cd0506
- https://git.kernel.org/stable/c/f818708eeeae793e12dc39f8984ed7732048a7d9
- https://git.kernel.org/stable/c/2e7eb4c1e8af8385de22775bd0be552f59b28c9a
- https://git.kernel.org/stable/c/5ce8fad941233e81f2afb5b52a3fcddd3ba8732f
- https://git.kernel.org/stable/c/8fe4ce5836e932f5766317cb651c1ff2a4cd0506
- https://git.kernel.org/stable/c/f818708eeeae793e12dc39f8984ed7732048a7d9
JSON original (NVD)
Mostrar
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"drivers/scsi/hosts.c",
"drivers/scsi/scsi_lib.c",
"drivers/scsi/scsi_priv.h",
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"drivers/scsi/scsi_sysfs.c",
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{
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{
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"version": "5.19.12",
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{
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"version": "6.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/scsi/hosts.c",
"drivers/scsi/scsi_lib.c",
"drivers/scsi/scsi_priv.h",
"drivers/scsi/scsi_scan.c",
"drivers/scsi/scsi_sysfs.c",
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"published": "2024-04-28T13:15:08.113",
"references": [
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"url": "https://git.kernel.org/stable/c/2e7eb4c1e8af8385de22775bd0be552f59b28c9a",
"tags": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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"tags": [
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"tags": [
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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"url": "https://git.kernel.org/stable/c/f818708eeeae793e12dc39f8984ed7732048a7d9",
"tags": [
"Patch"
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Fix a use-after-free\n\nThere are two .exit_cmd_priv implementations. Both implementations use\nresources associated with the SCSI host. Make sure that these resources are\nstill available when .exit_cmd_priv is called by waiting inside\nscsi_remove_host() until the tag set has been freed.\n\nThis commit fixes the following use-after-free:\n\n==================================================================\nBUG: KASAN: use-after-free in srp_exit_cmd_priv+0x27/0xd0 [ib_srp]\nRead of size 8 at addr ffff888100337000 by task multipathd/16727\nCall Trace:\n <TASK>\n dump_stack_lvl+0x34/0x44\n print_report.cold+0x5e/0x5db\n kasan_report+0xab/0x120\n srp_exit_cmd_priv+0x27/0xd0 [ib_srp]\n scsi_mq_exit_request+0x4d/0x70\n blk_mq_free_rqs+0x143/0x410\n __blk_mq_free_map_and_rqs+0x6e/0x100\n blk_mq_free_tag_set+0x2b/0x160\n scsi_host_dev_release+0xf3/0x1a0\n device_release+0x54/0xe0\n kobject_put+0xa5/0x120\n device_release+0x54/0xe0\n kobject_put+0xa5/0x120\n scsi_device_dev_release_usercontext+0x4c1/0x4e0\n execute_in_process_context+0x23/0x90\n device_release+0x54/0xe0\n kobject_put+0xa5/0x120\n scsi_disk_release+0x3f/0x50\n device_release+0x54/0xe0\n kobject_put+0xa5/0x120\n disk_release+0x17f/0x1b0\n device_release+0x54/0xe0\n kobject_put+0xa5/0x120\n dm_put_table_device+0xa3/0x160 [dm_mod]\n dm_put_device+0xd0/0x140 [dm_mod]\n free_priority_group+0xd8/0x110 [dm_multipath]\n free_multipath+0x94/0xe0 [dm_multipath]\n dm_table_destroy+0xa2/0x1e0 [dm_mod]\n __dm_destroy+0x196/0x350 [dm_mod]\n dev_remove+0x10c/0x160 [dm_mod]\n ctl_ioctl+0x2c2/0x590 [dm_mod]\n dm_ctl_ioctl+0x5/0x10 [dm_mod]\n __x64_sys_ioctl+0xb4/0xf0\n dm_ctl_ioctl+0x5/0x10 [dm_mod]\n __x64_sys_ioctl+0xb4/0xf0\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x46/0xb0"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: core: corrige un use-after-free Hay dos implementaciones de .exit_cmd_priv. Ambas implementaciones utilizan recursos asociados con el host SCSI. Asegúrese de que estos recursos todavía estén disponibles cuando se llame a .exit_cmd_priv esperando dentro de scsi_remove_host() hasta que se haya liberado el conjunto de etiquetas. Esta confirmación corrige el siguiente use-after-free: ======================================== =========================== ERROR: KASAN: use-after-free en srp_exit_cmd_priv+0x27/0xd0 [ib_srp] Lectura de tamaño 8 en addr ffff888100337000 por tarea multipathd/16727 Rastreo de llamadas: dump_stack_lvl+0x34/0x44 print_report.cold+0x5e/0x5db kasan_report+0xab/0x120 srp_exit_cmd_priv+0x27/0xd0 [ib_srp] +0x4d/0x70 blk_mq_free_rqs+0x143/0x410 __blk_mq_free_map_and_rqs+ 0x6e/0x100 blk_mq_free_tag_set+0x2b/0x160 scsi_host_dev_release+0xf3/0x1a0 dispositivo_release+0x54/0xe0 kobject_put+0xa5/0x120 dispositivo_release+0x54/0xe0 kobject_put+0xa5/0x120 +0x4c1/0x4e0 ejecutar_en_contexto_de_proceso+0x23/0x90 liberación_de_dispositivo+0x54/0xe0 kobject_put+ 0xa5/0x120 scsi_disk_release+0x3f/0x50 dispositivo_liberación+0x54/0xe0 kobject_put+0xa5/0x120 disk_release+0x17f/0x1b0 dispositivo_liberación+0x54/0xe0 kobject_put+0xa5/0x120 dm_put_table_device+0xa3/0x160 [dm_mod] dm_put_device+0xd0/0x140 [dm_mod] grupo_prioridad_libre +0xd8/0x110 [dm_multipath] free_multipath+0x94/0xe0 [dm_multipath] dm_table_destroy+0xa2/0x1e0 [dm_mod] __dm_destroy+0x196/0x350 [dm_mod] dev_remove+0x10c/0x160 [dm_mod] 2c2/0x590 [dm_mod] dm_ctl_ioctl+0x5 /0x10 [dm_mod] __x64_sys_ioctl+0xb4/0xf0 dm_ctl_ioctl+0x5/0x10 [dm_mod] __x64_sys_ioctl+0xb4/0xf0 do_syscall_64+0x3b/0x90 entrada_SYSCALL_64_after_hwframe+0x46/0xb 0"
}
],
"lastModified": "2026-08-04T10:17:14.973",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"versionEndExcluding": "5.19.12",
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{
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}