CVE-2025-21662
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: Fix variable not being completed when function returns
When cmd_alloc_index(), fails cmd_work_handler() needs to complete ent->slotted before returning early. Otherwise the task which issued the command may hang:
Detalles técnicos trazas, registros y código del informe original
mlx5_core 0000:01:00.0: cmd_work_handler:877:(pid 3880418): failed to allocate command entry
INFO: task kworker/13:2:4055883 blocked for more than 120 seconds.
Not tainted 4.19.90-25.44.v2101.ky10.aarch64 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/13:2 D 0 4055883 2 0x00000228
Workqueue: events mlx5e_tx_dim_work [mlx5_core]
Call trace:
__switch_to+0xe8/0x150
__schedule+0x2a8/0x9b8
schedule+0x2c/0x88
schedule_timeout+0x204/0x478
wait_for_common+0x154/0x250
wait_for_completion+0x28/0x38
cmd_exec+0x7a0/0xa00 [mlx5_core]
mlx5_cmd_exec+0x54/0x80 [mlx5_core]
mlx5_core_modify_cq+0x6c/0x80 [mlx5_core]
mlx5_core_modify_cq_moderation+0xa0/0xb8 [mlx5_core]
mlx5e_tx_dim_work+0x54/0x68 [mlx5_core]
process_one_work+0x1b0/0x448
worker_thread+0x54/0x468
kthread+0x134/0x138
ret_from_fork+0x10/0x18CVSS
- 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: 0.20%
- Percentil entre todas las CVEs puntuadas: 9
- Fecha de la puntuación: 5/10/2026
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
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/0e2909c6bec9048f49d0c8e16887c63b50b14647
- https://git.kernel.org/stable/c/229cc10284373fbe754e623b7033dca7e7470ec8
- https://git.kernel.org/stable/c/36124081f6ffd9dfaad48830bdf106bb82a9457d
- https://git.kernel.org/stable/c/f0a2808767ac39f64b1d9a0ff865c255073cf3d4
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix variable not being completed when function returns\n\nWhen cmd_alloc_index(), fails cmd_work_handler() needs\nto complete ent->slotted before returning early.\nOtherwise the task which issued the command may hang:\n\n mlx5_core 0000:01:00.0: cmd_work_handler:877:(pid 3880418): failed to allocate command entry\n INFO: task kworker/13:2:4055883 blocked for more than 120 seconds.\n Not tainted 4.19.90-25.44.v2101.ky10.aarch64 #1\n \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n kworker/13:2 D 0 4055883 2 0x00000228\n Workqueue: events mlx5e_tx_dim_work [mlx5_core]\n Call trace:\n __switch_to+0xe8/0x150\n __schedule+0x2a8/0x9b8\n schedule+0x2c/0x88\n schedule_timeout+0x204/0x478\n wait_for_common+0x154/0x250\n wait_for_completion+0x28/0x38\n cmd_exec+0x7a0/0xa00 [mlx5_core]\n mlx5_cmd_exec+0x54/0x80 [mlx5_core]\n mlx5_core_modify_cq+0x6c/0x80 [mlx5_core]\n mlx5_core_modify_cq_moderation+0xa0/0xb8 [mlx5_core]\n mlx5e_tx_dim_work+0x54/0x68 [mlx5_core]\n process_one_work+0x1b0/0x448\n worker_thread+0x54/0x468\n kthread+0x134/0x138\n ret_from_fork+0x10/0x18"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5: Se solucionó que la variable no se completara cuando la función retorna Cuando cmd_alloc_index(), falla cmd_work_handler() debe completar ent->slotted antes de regresar antes. De lo contrario, la tarea que emitió el comando puede bloquearse: mlx5_core 0000:01:00.0: cmd_work_handler:877:(pid 3880418): no se pudo asignar la entrada del comando INFO: la tarea kworker/13:2:4055883 se bloqueó durante más de 120 segundos. No está contaminada 4.19.90-25.44.v2101.ky10.aarch64 #1 \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message. kworker/13:2 D 0 4055883 2 0x00000228 Workqueue: events mlx5e_tx_dim_work [mlx5_core] Call trace: __switch_to+0xe8/0x150 __schedule+0x2a8/0x9b8 schedule+0x2c/0x88 schedule_timeout+0x204/0x478 wait_for_common+0x154/0x250 wait_for_completion+0x28/0x38 cmd_exec+0x7a0/0xa00 [mlx5_core] mlx5_cmd_exec+0x54/0x80 [mlx5_core] mlx5_core_modify_cq+0x6c/0x80 [mlx5_core] mlx5_core_modify_cq_moderation+0xa0/0xb8 [mlx5_core] mlx5e_tx_dim_work+0x54/0x68 [mlx5_core] process_one_work+0x1b0/0x448 worker_thread+0x54/0x468 kthread+0x134/0x138 ret_from_fork+0x10/0x18 "
}
],
"lastModified": "2026-06-17T08:43:57.613",
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