Riskcovery

CVE-2026-46046

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

State
Published
Severity
Not scored
Published
May 27, 2026
Updated
Oct 15, 2026
Reserved
May 13, 2026

Read the record on cve.org

Description

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().

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3 to before dd98a5603a212ea9c96c6982ccdbcc748fdb9a56Affected
  • f737418b6de31c962c7192777ee4018906975383 to before 153ab2c52355fbebcae622db8e7b506492c73a29Affected
  • cf9291a3449b04688b81e32621e88de8f4314b54 to before b706d00206a9e82362a9633efbd8b5775650169bAffected
  • 362a90cecd36e8a5c415966d0b75b04a0270e4dd to before 1bc1107a3a403a6d440673ed6666f7b07ef868a8Affected
  • eb59cc31b6ea076021d14b04e7faab1636b87d0e to before 097227f1ffe1a85bc3c359f81c71e3d40e06e920Affected
  • c8e008b60492cf6fd31ef127aea6d02fd3d314cd to before 1e6b0a69bf2c9c819255c7566e4355536d81d9cfAffected
  • c8e008b60492cf6fd31ef127aea6d02fd3d314cd to before f072906688933bf47fabbaf63560be03357c8298Affected
  • c8e008b60492cf6fd31ef127aea6d02fd3d314cd to before 77d059519382bd66283e6a4e83ee186e87e7708fAffected
  • 6aff941cb0f7d0c897c3698ad2e30672709135e3Affected
  • 3bc6317033f365ce578eb6039445fb66162722fdAffected
  • 836e625b03a666cf93ff5be328c8cb30336db872Affected
  • 5.10.237 to before 5.10.258Affected
  • 5.15.181 to before 5.15.209Affected
  • 6.1.135 to before 6.1.175Affected
  • 6.6.88 to before 6.6.140Affected
  • 6.12.24 to before 6.12.86Affected
  • 5.4.293 to before 5.5Affected
  • 6.13.12 to before 6.14Affected
  • 6.14.3 to before 6.15Affected
LinuxLinux
  • 6.15Affected
  • before 6.15Not affected
  • 5.10.258 through 5.10.*Not affected
  • 5.15.209 through 5.15.*Not affected
  • 6.1.175 through 6.1.*Not affected
  • 6.6.140 through 6.6.*Not affected
  • 6.12.86 through 6.12.*Not affected
  • 6.18.27 through 6.18.*Not affected
  • 7.0.4 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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