# CVE-2025-40352: linux: In the Linux kernel, the following vulnerability has been resolved:  platform/mellanox: mlxbf-pmc: add sysfs_attr_ini...

CVE-2025-40352 is fixed in linux on 1 platform by DEBIAN-CVE-2025-40352 (version 6.17.6-1), released December 16, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-40352
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 16, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  platform/mellanox: mlxbf-pmc: add sysfs_attr_init() to count_clock init  The lock-related debug logic (CONFIG_LOCK_STAT) in the kernel is noting the following warning when the BlueField-3 SOC is booted:    BUG: key ffff00008a3402a8 has not been registered!   ------------[ cut here ]------------   DEBUG_LOCKS_WARN_ON(1)   WARNING: CPU: 4 PID: 592 at kernel/locking/lockdep.c:4801 lockdep_init_map_type+0x1d4/0x2a0 <snip>   Call trace:    lockdep_init_map_type+0x1d4/0x2a0    __kernfs_create_file+0x84/0x140    sysfs_add_file_mode_ns+0xcc/0x1cc    internal_create_group+0x110/0x3d4    internal_create_groups.part.0+0x54/0xcc    sysfs_create_groups+0x24/0x40    device_add+0x6e8/0x93c    device_register+0x28/0x40    __hwmon_device_register+0x4b0/0x8a0    devm_hwmon_device_register_with_groups+0x7c/0xe0    mlxbf_pmc_probe+0x1e8/0x3e0 [mlxbf_pmc]    platform_probe+0x70/0x110  The mlxbf_pmc driver must call sysfs_attr_init() during the initialization of the "count_clock" data structure to avoid this warning.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.17.6-1 | [DEBIAN-CVE-2025-40352](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40352.md) | Dec 16, 2025 |

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