CVE-2026-64266 (GCVE-0-2026-64266)
Vulnerability from cvelistv5
Published
2026-07-25 08:49
Modified
2026-10-19 20:28
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fuse_ref_folio() fuse_ref_folio() unlocks the request but does not re-lock it before returning. fuse_chan_abort() can end the request and the async end callback (eg fuse_writepage_free()) can free the args while the subsequent copy chain logic after fuse_ref_folio() accesses them, leading to use-after-free issues. Fix this by locking the request in fuse_ref_folio() before returning.
References
Impacted products
Vendor Product Version
Linux Linux Version: c3021629a0d820247ee12b6c5192a1d5380e21c6
Version: c3021629a0d820247ee12b6c5192a1d5380e21c6
Version: c3021629a0d820247ee12b6c5192a1d5380e21c6
Version: c3021629a0d820247ee12b6c5192a1d5380e21c6
Version: c3021629a0d820247ee12b6c5192a1d5380e21c6
Version: c3021629a0d820247ee12b6c5192a1d5380e21c6
Version: c3021629a0d820247ee12b6c5192a1d5380e21c6
Version: c3021629a0d820247ee12b6c5192a1d5380e21c6
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