CVE-2025-37808

crypto: null - Use spin lock instead of mutex

MEDIUM

5.5

CVSS Score

Published: May 8, 2025 at 06:26 AM UTC

Updated: June 17, 2026 at 09:15 AM UTC

2 products affected across 2 vendorsLinux KernelDebian Linux

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: null - Use spin lock instead of mutex As the null algorithm may be freed in softirq context through af_alg, use spin locks instead of mutexes to protect the default null algorithm.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux · Debiandrupal

95%

11.0

Linux Kernel · Linux

95%

4.2 ≤ v < 5.10.2374.2 ≤ v < 5.15.1814.2 ≤ v < 5.4.2934.2 ≤ v < 6.1.1364.2 ≤ v < 6.12.264.2 ≤ v < 6.14.54.2 ≤ v < 6.154.2 ≤ v < 6.6.895.11 ≤ v < 5.15.1815.16 ≤ v < 6.1.1365.5 ≤ v < 5.10.2376.13 ≤ v < 6.14.56.2 ≤ v < 6.6.896.7 ≤ v < 6.12.26330234638e16b7b95e8e5e6be719a61a93f074b84.2

Vendor states this is fixed in 0486de3c1b8223138dcc614846bd76364f758de6 (fixed)

Vendor states this is fixed in 1b66a5920b7fc7cc6251192a3fcad115b6d75dd5 (fixed)

Vendor states this is fixed in 1dd4a8561d85dea545cf93f56efc48df8176e218 (fixed)

Vendor states this is fixed in 8cf2945512a8c0ef74ddd5b5a4f6b6a2fb1a4efb (fixed)

Vendor states this is fixed in dcc47a028c24e793ce6d6efebfef1a1e92f80297 (fixed)

Vendor states this is fixed in e27244cbe10658a66b8775be7f0acc4ad2f618d6 (fixed)

Vendor states this is fixed in e307c54ac8198bf09652c72603ba6e6d97798410 (fixed)

Vendor states this is fixed in f7a5a5c8e1ec16a4b2041398abe95de0e14572ef (fixed)

Vendor states this is fixed in 4.2 (unaffected)

Vendor states this is fixed in 5.10.237 (unaffected)

Vendor states this is fixed in 5.15.181 (unaffected)

Vendor states this is fixed in 5.4.293 (unaffected)