CVE-2026-23223

Description

In the Linux kernel, the following vulnerability has been resolved:xfs: fix UAF in xchk_btree_check_block_ownerWe cannot dereference bs->cur when trying to determine if bs->curaliases bs->sc->sa.{bno,rmap}_cur after the latter has been freed.Fix this by sampling before type before any freeing could happen.The correct temporal ordering was broken when we removed xfs_btnum_t.

Risk Information

Base Score

7.8

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.015

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234