What’s Vulnerable › Vulnerabilities

CVE-2022-48981: drm/shmem-helper: Remove errant put in error path

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% 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-416

Description

In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Remove errant put in error path drm_gem_shmem_mmap() doesn't own this reference, resulting in the GEM object getting prematurely freed leading to a later use-after-free.

Affected products

• Linux kernel: from 5.2 before 5.4.227; from 5.5 before 5.10.159; from 5.11 before 5.15.83; from 5.16 before 6.0.13; 6.1-rc1, 6.1-rc2, 6.1-rc3, 6.1-rc4, 6.1-rc5, 6.1-rc6 (+2) — fixed in 5.10.159, 5.15.83, 5.4.227, 6.0.13

How to fix

Upgrade to a fixed version: Linux kernel 5.10.159, 5.15.83, 5.4.227, 6.0.13. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/24013314be6ee4ee456114a671e9fa3461323de8
• https://git.kernel.org/stable/c/585a07b820059462e0c93b76c7de2cd946b26b40
• https://git.kernel.org/stable/c/586847b98e20ab02212ca5c1fc46680384e68a28
• https://git.kernel.org/stable/c/6a4da05acd062ae7774b6b19cef2b7d922902d36
• https://git.kernel.org/stable/c/83e3da8bb92fcfa7a1d232cf55f9e6c49bb84942

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