io_uring/rw: free potentially allocated iovec on cache put failure (Linux Linux)

CVE-2026-23259
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.17 % · percentile 6 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/rw: free potentially allocated iovec on cache put failure If a read/write request goes through io_req_rw_cleanup() and has an allocated iovec attached and fails to put to the rw_cache, then it may end up with an unaccounted iovec pointer. Have io_rw_recycle() return whether it recycled the request or not, and use that to gauge whether to free a potential iovec or not.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected a9165b83c1937eeed1f0c731468216d6371d647f < 41cda4c66846c3bfcdeaf28444ccabbb55e64cf1 ; affected a9165b83c1937eeed1f0c731468216d6371d647f < 1d5f2329ab4df65c2ee011b986d8a6e05ad0f67c ; affected a9165b83c1937eeed1f0c731468216d6371d647f < 4b9748055457ac3a0710bf210c229d01ea1b01b9
Linux · Linuxaffected 6.10 ; unaffected 0 < 6.10 ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 6.18.10 ≤ 6.18.* ; unaffected 6.19 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD