PT-2026-61093 · Linux · Linux Kernel

CVE-2026-53388 · Published 2026-07-19 · Updated 2026-07-20

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free issue exists in the fuse module. The fuse try move folio() function unlocks the request upon entry but fails to re-lock it during the success path. Consequently, fuse chan abort() can terminate the request and free the fuse io args (for example, via fuse readpages end()) while the subsequent copy chain logic still accesses fuse io args.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-53388

Affected Products

Linux Kernel

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2026-53388 · Security Note
• https://git.kernel.org/stable/c/a078484921052d0badd827fcc2770b5cfc1d4120 · Note
• https://git.kernel.org/stable/c/030fe3e9d8abdee303dd7e9e42f45082d382a407 · Note
• https://git.kernel.org/stable/c/e28db6ac4792d065ab32565fd9f0a2361c3d4666 · Note
• https://git.kernel.org/stable/c/5927b43a4f8d89e86930f524bf63e9c7e66f61b4 · Note
• https://git.kernel.org/stable/c/46473ddccdc5065033e397d6e62c280dbcd3d9c2 · Note
• https://git.kernel.org/stable/c/0223f452532d9cd8a5e87c45de828fd93c99bd25 · Note
• https://git.kernel.org/stable/c/7c18691e0cfda29672f79bafde8abdb7710674f6 · Note
• https://git.kernel.org/stable/c/af2892249d982a1c036ca456cc135374e68b6677 · Note
• https://twitter.com/vuldb/status/2079067571383652561 · Twitter Post