CVE-2024-57942 The advisory has been revoked - it doesn't affect any version of package libperf (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALMALINUX10-LIBPERF-14116272
- published26 Nov 2025
- disclosed11 Nov 2025
Introduced: 11 Nov 2025
CVE-2024-57942 (opens in a new tab)Amendment
The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libperf package and not the libperf package as distributed by AlmaLinux.
In the Linux kernel, the following vulnerability has been resolved:
netfs: Fix ceph copy to cache on write-begin
At the end of netfs_unlock_read_folio() in which folios are marked appropriately for copying to the cache (either with by being marked dirty and having their private data set or by having PG_private_2 set) and then unlocked, the folio_queue struct has the entry pointing to the folio cleared. This presents a problem for netfs_pgpriv2_write_to_the_cache(), which is used to write folios marked with PG_private_2 to the cache as it expects to be able to trawl the folio_queue list thereafter to find the relevant folios, leading to a hang.
Fix this by not clearing the folio_queue entry if we're going to do the deprecated copy-to-cache. The clearance will be done instead as the folios are written to the cache.
This can be reproduced by starting cachefiles, mounting a ceph filesystem with "-o fsc" and writing to it.
References
- https://errata.almalinux.org/10/ALSA-2025-20095.html
- https://access.redhat.com/security/cve/CVE-2024-57942
- https://access.redhat.com/errata/RHSA-2025:20095
- https://git.kernel.org/stable/c/38cf8e945721ffe708fa675507465da7f4f2a9f7
- https://git.kernel.org/stable/c/43b8d3249b0b71bad239d42dbe08ce6c938ba000