CVE-2025-40267

linux: In the Linux kernel, the following vulnerability has been resolved: io_uring/rw: ensure allocated iovec gets cleared...

CVE-2025-40267 is fixed in linux on 1 platform by DEBIAN-CVE-2025-40267 (version 6.17.9-1), released December 6, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0018
8th percentile

In the Linux kernel, the following vulnerability has been resolved: io_uring/rw: ensure allocated iovec gets cleared for early failure A previous commit reused the recyling infrastructure for early cleanup, but this is not enough for the case where our internal caches have overflowed. If this happens, then the allocated iovec can get leaked if the request is also aborted early. Reinstate the previous forced free of the iovec for that situation.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 14 6.17.9-1 DEBIAN-CVE-2025-40267 Dec 6, 2025

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