Out-of-bounds read in Linux kernel - CVE-2026-46094
Published: May 27, 2026
Vulnerability identifier: #VU132404
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46094
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local attacker to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in check_xattrs() when processing crafted ext4 extended attribute entries. A local attacker can provide a malformed xattr layout to trigger a read beyond the valid xattr region to disclose sensitive information.
How to mitigate CVE-2026-46094
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/520986722dbf869c122252123fc161c7302eab7d
- https://git.kernel.org/stable/c/537e065977022aa22f2c2503e8accaf16622e0fd
- https://git.kernel.org/stable/c/5a5314d2387633a272a04d1bd8727f99058e4e68
- https://git.kernel.org/stable/c/ab6da97bc310db35d4e4ef5354bc3ff626b0698c
- https://git.kernel.org/stable/c/eceafc31ea7b42c984ece10d79d505c0bb6615d5