Описание
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.
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.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2026-64266
- https://git.kernel.org/stable/c/0e4a5a000123d81234e27a2f8187688cf608f755
- https://git.kernel.org/stable/c/1ca605cfa59377f0143fb35b5b01360f37d1b7c4
- https://git.kernel.org/stable/c/1f9156714592356b4fda57beac7eab9c2a462dd3
- https://git.kernel.org/stable/c/5630da218a45ba80f0aba0846cbe8aa655da122b
- https://git.kernel.org/stable/c/65a1c2551f7e16085acbb54aedde1feaa559ba7a
- https://git.kernel.org/stable/c/b5befa80fdbe287a98480effed9564712924add5
- https://git.kernel.org/stable/c/be353caffa8640f5e25fb3714ce8b0cef5e410e5
- https://git.kernel.org/stable/c/e6aa539720c3d8def69683ed0c07cf9faea4e8be
Связанные уязвимости
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.
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.
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.
fuse: re-lock request before returning from fuse_ref_folio()
In the Linux kernel, the following vulnerability has been resolved: f ...