CVE-2026-64266

CVE CVE-2026-64266EUVD EUVD-2026-48978Published 2026-07-25T08:49:15.000ZLast changed 2026-08-05T12:40:24.000ZCVSS 7.8

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux c3021629a0d820247ee12b6c5192a1d5380e21c6 <e6aa539720c3d8def69683ed0c07cf9faea4e8be; patch: 0; c3021629a0d820247ee12b6c5192a1d5380e21c6 <65a1c2551f7e16085acbb54aedde1feaa559ba7a; patch: 6.18.39; patch: 5.15.212; 2.6.35; patch: 6.12.96; c3021629a0d820247ee12b6c5192a1d5380e21c6 <5630da218a45ba80f0aba0846cbe8aa655da122b; patch: 6.6.145; patch: 5.10.261; c3021629a0d820247ee12b6c5192a1d5380e21c6 <be353caffa8640f5e25fb3714ce8b0cef5e410e5; c3021629a0d820247ee12b6c5192a1d5380e21c6 <1f9156714592356b4fda57beac7eab9c2a462dd3; c3021629a0d820247ee12b6c5192a1d5380e21c6 <1ca605cfa59377f0143fb35b5b01360f37d1b7c4; patch: 7.1.4; c3021629a0d820247ee12b6c5192a1d5380e21c6 <0e4a5a000123d81234e27a2f8187688cf608f755; patch: 6.1.178; c3021629a0d820247ee12b6c5192a1d5380e21c6 <b5befa80fdbe287a98480effed9564712924add5; patch: 7.2-rc1

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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