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ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

Type: advisorySources: OSV

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().

Products
Kernel
Affected versions
Not specified
Fixed versions
5.10.258, 5.15.209, 6.1.175, 6.12.86, 6.18.27, 6.6.140, 7.0.4
CVEs
CVE-2026-46046
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 00:59 UTC · Revision 1

Source evidence

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

core-osv · Original source

Published 27 May 2026, 12:57 UTC

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().

osv:CVE-2026-46046

Kernel

Fixed versions: 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.86, 6.18.27, 7.0.4

Complete source record
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  "url": "https://osv.dev/vulnerability/CVE-2026-46046",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()",
    "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().",
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  "source_id": "core-osv",
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}