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CVE-2026-64266

7.8 high SSVC exploitation: none Modified
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 8

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 3

  1. CwesCWE-416 → CWE-416, CWE-362NVD modified 2026-10-19 21:17
  2. StatusAnalyzed → ModifiedNVD modified 2026-10-19 21:17
  3. First seenCVSS 7.8 · linuxNVD modified 2026-10-16 16:19

Affected (CPE criteria) 1

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References 8