CVE-2025-39908 Affecting kernel-uek-debug-modules-core package, versions <0:6.12.0-205.92.4.2.el10uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEKDEBUGMODULESCORE-18604903
  • published10 Aug 2026
  • disclosed1 Oct 2025

Introduced: 1 Oct 2025

CVE-2025-39908  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek-debug-modules-core to version 0:6.12.0-205.92.4.2.el10uek or higher.
This issue was patched in ELSA-2026-500150.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug-modules-core package and not the kernel-uek-debug-modules-core package as distributed by Oracle. See How to fix? for Oracle:10 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

net: dev_ioctl: take ops lock in hwtstamp lower paths

ndo hwtstamp callbacks are expected to run under the per-device ops lock. Make the lower get/set paths consistent with the rest of ndo invocations.

Kernel log: WARNING: CPU: 13 PID: 51364 at ./include/net/netdev_lock.h:70 __netdev_update_features+0x4bd/0xe60 ... RIP: 0010:__netdev_update_features+0x4bd/0xe60 ... Call Trace: <TASK> netdev_update_features+0x1f/0x60 mlx5_hwtstamp_set+0x181/0x290 [mlx5_core] mlx5e_hwtstamp_set+0x19/0x30 [mlx5_core] dev_set_hwtstamp_phylib+0x9f/0x220 dev_set_hwtstamp_phylib+0x9f/0x220 dev_set_hwtstamp+0x13d/0x240 dev_ioctl+0x12f/0x4b0 sock_ioctl+0x171/0x370 __x64_sys_ioctl+0x3f7/0x900 ? __sys_setsockopt+0x69/0xb0 do_syscall_64+0x6f/0x2e0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 ... </TASK> .... ---[ end trace 0000000000000000 ]---

Note that the mlx5_hwtstamp_set and mlx5e_hwtstamp_set functions shown in the trace come from an in progress patch converting the legacy ioctl to ndo_hwtstamp_get/set and are not present in mainline.

CVSS Base Scores

version 3.1