What’s Vulnerable › Vulnerabilities

CVE-2024-50055: driver core: bus: Fix double free in driver API bus_register()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-10-21 · updated 2026-08-04
• Weakness: CWE-415

Description

In the Linux kernel, the following vulnerability has been resolved: driver core: bus: Fix double free in driver API bus_register() For bus_register(), any error which happens after kset_register() will cause that @priv are freed twice, fixed by setting @priv with NULL after the first free.

Affected products

• Debian Linux: 11.0
• Linux kernel: before 5.4.291; from 5.5 before 5.10.231; from 5.11 before 5.15.174; from 5.16 before 6.1.120; from 6.2 before 6.6.57; from 6.7 before 6.11.4 — fixed in 5.10.231, 5.15.174, 5.4.291, 6.1.120, 6.11.4, 6.6.57

How to fix

Upgrade to a fixed version: Linux kernel 5.10.231, 5.15.174, 5.4.291, 6.1.120. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/9ce15f68abedfae7ae0a35e95895aeddfd0f0c6a
• https://git.kernel.org/stable/c/bfa54a793ba77ef696755b66f3ac4ed00c7d1248
• https://git.kernel.org/stable/c/d885c464c25018b81a6b58f5d548fc2e3ef87dd1
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
• https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

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