CVE-2026-46046
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() The commit c8e008b60492 ("ext4: ignore xattrs past end") introduced a refcount leak in when block_csum is false. ext4_xattr_inode_dec_ref_all() calls ext4_get_inode_loc() to get iloc.bh, but never releases it with brelse().
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/097227f1ffe1a85bc3c359f81c71e3d40e06e920 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/097227f1ffe1a85bc3c359f81c71e3d40e06e920Patch
- https://git.kernel.org/stable/c/153ab2c52355fbebcae622db8e7b506492c73a29Patch
- https://git.kernel.org/stable/c/1bc1107a3a403a6d440673ed6666f7b07ef868a8Patch
- https://git.kernel.org/stable/c/1e6b0a69bf2c9c819255c7566e4355536d81d9cfPatch
- https://git.kernel.org/stable/c/77d059519382bd66283e6a4e83ee186e87e7708fPatch
- https://git.kernel.org/stable/c/b706d00206a9e82362a9633efbd8b5775650169bPatch
- https://git.kernel.org/stable/c/dd98a5603a212ea9c96c6982ccdbcc748fdb9a56Patch
- https://git.kernel.org/stable/c/f072906688933bf47fabbaf63560be03357c8298Patch