CVE-2025-39832
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix lockdep assertion on sync reset unload event Fix lockdep assertion triggered during sync reset unload event. When the sync reset flow is initiated using the devlink reload fw_activate option, the PF already holds the devlink lock while handling unload event. In this case, delegate sync reset unload event handling back to the devlink callback process to avoid double-locking and resolve the lockdep warning. Kernel log: WARNING: CPU: 9 PID: 1578 at devl_assert_locked+0x31/0x40 [...] Call Trace: <TASK> mlx5_unload_one_devl_locked+0x2c/0xc0 [mlx5_core] mlx5_sync_reset_unload_event+0xaf/0x2f0 [mlx5_core] process_one_work+0x222/0x640 worker_thread+0x199/0x350 kthread+0x10b/0x230 ? __pfx_worker_thread+0x10/0x10 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x8e/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-16 14:15:51.460000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
{
"id": "CVE-2025-39832",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-09-16T14:15:51.460",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix lockdep assertion on sync reset unload event\n\nFix lockdep assertion triggered during sync reset unload event. When the\nsync reset flow is initiated using the devlink reload fw_activate\noption, the PF already holds the devlink lock while handling unload\nevent. In this case, delegate sync reset unload event handling back to\nthe devlink callback process to avoid double-locking and resolve the\nlockdep warning.\n\nKernel log:\nWARNING: CPU: 9 PID: 1578 at devl_assert_locked+0x31/0x40\n[...]\nCall Trace:\n<TASK>\n mlx5_unload_one_devl_locked+0x2c/0xc0 [mlx5_core]\n mlx5_sync_reset_unload_event+0xaf/0x2f0 [mlx5_core]\n process_one_work+0x222/0x640\n worker_thread+0x199/0x350\n kthread+0x10b/0x230\n ? __pfx_worker_thread+0x10/0x10\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x8e/0x100\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n</TASK>"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet/mlx5: Corrige la aserción de lockdep en el evento de descarga de reinicio síncrono\n\nCorrige la aserción de lockdep activada durante el evento de descarga de reinicio síncrono. Cuando el flujo de reinicio síncrono se inicia utilizando la opción devlink reload fw_activate, el PF ya mantiene el bloqueo de devlink mientras maneja el evento de descarga. En este caso, delega el manejo del evento de descarga de reinicio síncrono de vuelta al proceso de devolución de llamada de devlink para evitar el doble bloqueo y resolver la advertencia de lockdep.\n\nRegistro del kernel:\nADVERTENCIA: CPU: 9 PID: 1578 en devl_assert_locked+0x31/0x40\n[...]\nTraza de llamada:\n<TAREA>\n mlx5_unload_one_devl_locked+0x2c/0xc0 [mlx5_core]\n mlx5_sync_reset_unload_event+0xaf/0x2f0 [mlx5_core]\n process_one_work+0x222/0x640\n worker_thread+0x199/0x350\n kthread+0x10b/0x230\n ? __pfx_worker_thread+0x10/0x10\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x8e/0x100\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n</TAREA>"
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"drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h"
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"drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c",
"drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h"
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