Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
c3021629a0d820247ee12b6c5192a1d5380e21c6 to < 1f9156714592356b4fda57beac7eab9c2a462dd3affectedc3021629a0d820247ee12b6c5192a1d5380e21c6 to < 5630da218a45ba80f0aba0846cbe8aa655da122baffectedc3021629a0d820247ee12b6c5192a1d5380e21c6 to < 1ca605cfa59377f0143fb35b5b01360f37d1b7c4affectedc3021629a0d820247ee12b6c5192a1d5380e21c6 to < 0e4a5a000123d81234e27a2f8187688cf608f755affectedc3021629a0d820247ee12b6c5192a1d5380e21c6 to < e6aa539720c3d8def69683ed0c07cf9faea4e8beaffectedc3021629a0d820247ee12b6c5192a1d5380e21c6 to < be353caffa8640f5e25fb3714ce8b0cef5e410e5affectedc3021629a0d820247ee12b6c5192a1d5380e21c6 to < 65a1c2551f7e16085acbb54aedde1feaa559ba7aaffectedc3021629a0d820247ee12b6c5192a1d5380e21c6 to < b5befa80fdbe287a98480effed9564712924add5affected
Linux Linux
Default version status: affected
2.6.35affected0 to < 2.6.35unaffected5.10.261 to ≤ 5.10.*unaffected5.15.212 to ≤ 5.15.*unaffected6.1.178 to ≤ 6.1.*unaffected6.6.145 to ≤ 6.6.*unaffected6.12.96 to ≤ 6.12.*unaffected6.18.39 to ≤ 6.18.*unaffected7.1.4 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/1f9156714592356b4fda57beac7eab9c2a462dd3 ↗
- https://git.kernel.org/stable/c/5630da218a45ba80f0aba0846cbe8aa655da122b ↗
- https://git.kernel.org/stable/c/1ca605cfa59377f0143fb35b5b01360f37d1b7c4 ↗
- https://git.kernel.org/stable/c/0e4a5a000123d81234e27a2f8187688cf608f755 ↗
- https://git.kernel.org/stable/c/e6aa539720c3d8def69683ed0c07cf9faea4e8be ↗
- https://git.kernel.org/stable/c/be353caffa8640f5e25fb3714ce8b0cef5e410e5 ↗
- https://git.kernel.org/stable/c/65a1c2551f7e16085acbb54aedde1feaa559ba7a ↗
- https://git.kernel.org/stable/c/b5befa80fdbe287a98480effed9564712924add5 ↗