4.7

CVE-2024-53136

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

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".
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.19.323 < 4.19.325
Linux ≫ Linux Kernel Version >= 5.4.285 < 5.5
Linux ≫ Linux Kernel Version >= 5.10.229 < 5.11
Linux ≫ Linux Kernel Version >= 5.15.171 < 5.16
Linux ≫ Linux Kernel Version >= 6.1.116 < 6.1.119
Linux ≫ Linux Kernel Version >= 6.6.60 < 6.6.63
Linux ≫ Linux Kernel Version >= 6.11.7 < 6.11.10
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.064
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

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