What’s Vulnerable › Vulnerabilities

CVE-2024-53136: mm: revert "mm: shmem: fix data-race in shmem_getattr()"

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-04 · updated 2026-08-04
• Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: mm: revert "mm: shmem: fix data-race in shmem_getattr()" Revert d949d1d14fa2 ("mm: shmem: fix data-race in shmem_getattr()") as suggested by Chuck [1]. It is causing deadlocks when accessing tmpfs over NFS. As Hugh commented, "added just to silence a syzbot sanitizer splat: added where there has never been any practical problem".

Affected products

• Linux kernel: from 4.19.323 before 4.19.325; from 5.4.285 before 5.5; from 5.10.229 before 5.11; from 5.15.171 before 5.16; from 6.1.116 before 6.1.119; from 6.6.60 before 6.6.63 — fixed in 4.19.325, 5.11, 5.16, 5.5, 6.1.119, 6.11.10

How to fix

Upgrade to a fixed version: Linux kernel 4.19.325, 5.11, 5.16, 5.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/36b537e8f302f670c7cf35d88a3a294443e32d52
• https://git.kernel.org/stable/c/57cc8d253099d1b8627f0fb487ee011d9158ccc9
• https://git.kernel.org/stable/c/5874c1150e77296565ad6e495ef41fbf87570d14
• https://git.kernel.org/stable/c/64e67e8694252c1bf01b802ee911be3fee62c36b
• https://git.kernel.org/stable/c/901dc2ad7c3789fa87dc3956f6697c5d62d5cf7e
• https://git.kernel.org/stable/c/a3c65022d89d5baa2cea8e87a6de983ea305f14c
• https://git.kernel.org/stable/c/d1aa0c04294e29883d65eac6c2f72fe95cc7c049
• https://git.kernel.org/stable/c/d3f9d88c2c03b2646ace336236adca19f7697bd3
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
• https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

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