CVE-2026-46046

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

Published: 5/27/2026 Last updated: 6/14/2026 Reserved: 5/13/2026

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().

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Opam packages affected (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (4)

Product	Vendor	Version
Linux	Linux	1.3.8
Linux	Linux	1.3.9
Linux	Linux	298ba736387ca37810466349af13a0fdf828e99c
Linux	Linux	< 10.0.22621.6060

CVE-2026-46046

ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()

Opam packages affected (29)

Products affected (4)

References (16)