CVE-2026-64266
fuse: re-lock request before returning from fuse_ref_folio()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 25, 2026 |
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Affected Versions
Linux / Linux
c3021629a0d820247ee12b6c5192a1d5380e21c6 < 1f9156714592356b4fda57beac7eab9c2a462dd3 c3021629a0d820247ee12b6c5192a1d5380e21c6 < 5630da218a45ba80f0aba0846cbe8aa655da122b c3021629a0d820247ee12b6c5192a1d5380e21c6 < 1ca605cfa59377f0143fb35b5b01360f37d1b7c4 c3021629a0d820247ee12b6c5192a1d5380e21c6 < 0e4a5a000123d81234e27a2f8187688cf608f755 c3021629a0d820247ee12b6c5192a1d5380e21c6 < e6aa539720c3d8def69683ed0c07cf9faea4e8be c3021629a0d820247ee12b6c5192a1d5380e21c6 < be353caffa8640f5e25fb3714ce8b0cef5e410e5 c3021629a0d820247ee12b6c5192a1d5380e21c6 < 65a1c2551f7e16085acbb54aedde1feaa559ba7a c3021629a0d820247ee12b6c5192a1d5380e21c6 < b5befa80fdbe287a98480effed9564712924add5
Linux / Linux
2.6.35
References
git.kernel.org: https://git.kernel.org/stable/c/1f9156714592356b4fda57beac7eab9c2a462dd3 git.kernel.org: https://git.kernel.org/stable/c/5630da218a45ba80f0aba0846cbe8aa655da122b git.kernel.org: https://git.kernel.org/stable/c/1ca605cfa59377f0143fb35b5b01360f37d1b7c4 git.kernel.org: https://git.kernel.org/stable/c/0e4a5a000123d81234e27a2f8187688cf608f755 git.kernel.org: https://git.kernel.org/stable/c/e6aa539720c3d8def69683ed0c07cf9faea4e8be git.kernel.org: https://git.kernel.org/stable/c/be353caffa8640f5e25fb3714ce8b0cef5e410e5 git.kernel.org: https://git.kernel.org/stable/c/65a1c2551f7e16085acbb54aedde1feaa559ba7a git.kernel.org: https://git.kernel.org/stable/c/b5befa80fdbe287a98480effed9564712924add5