CVE-2026-72374
In the Linux kernel, the following vulnerability has been resolved: afs: Fix callback service message parsers to pass through -EAGAIN The AFS filesystem client uses an rxrpc server to listen for callback notifications. Each callback call type handler has a delivery function that parses the incoming request stream, and this should return -EAGAIN the last packet hasn't yet been seen, but all currently queued received data is consumed. afs_extract_data() does this, but the -EAGAIN return is switched to 0 inadvertantly Fix callback service message parsers to pass through -EAGAIN
Affected versions
Linux kernel versions
4.9
and later are affected. Fixed in
5.10.261,
5.15.212,
6.1.178,
6.6.145,
6.12.97,
6.18.40,
7.1.5,
7.2-rc2
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-72374?
CVE-2026-72374 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.9 onward and has been patched in 5.10.261, 5.15.212, 6.1.178 and others. CVE-2026-72374 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-72374?
Yes. CVE-2026-72374 has been patched. Fixed versions include 5.10.261, 5.15.212, 6.1.178 and others. If you are running Linux kernel 4.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-72374 actively exploited?
No. CVE-2026-72374 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.