Description
In the Linux kernel, the following vulnerability has been resolved: jfs: fix array-index-out-of-bounds read in add_missing_indices stbl is s8 but it must contain offsets into slot which can go from 0 to 127. Added a bound check for that error and return -EIO if the check fails. Also make jfs_readdir return with error if add_missing_indices returns with an error.
Affected products
linux: linux kernel; debian: debian linux
References9
- git.kernel.org/stable/c/44618bee303bed151ef3a525ff79fbd7689593b5 Patch
- git.kernel.org/stable/c/5dff41a86377563f7a2b968aae00d25b4ceb37c9 Patch
- git.kernel.org/stable/c/81af4b34fd72d390d7f237c6a545cc6d09707956 Patch
- git.kernel.org/stable/c/bfa4655d28f338e68d345aed80d19be7999bbce2 Patch
- git.kernel.org/stable/c/c8399564a58fb6ea2ff21a6fd278417943cb51a5 Patch
- git.kernel.org/stable/c/2ec34dc7094b14149ce091c77aff43a45d255518
- git.kernel.org/stable/c/5730e2da0655336fed6aa3c25892e69e2ba5cb76
- git.kernel.org/stable/c/c8733634978086b41255695d993cec3017a23a27
- lists.debian.org/debian-lts-announce/2025/10/msg00007.html Mailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H - EPSS — exploit probability
- 0% percentile: 15 · as of 7 November 2026
- CWE
- CWE-125
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.