Commit b11a05b5 authored by Baokun Li's avatar Baokun Li Committed by ZhaoLong Wang
Browse files

ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()

mainline inclusion
from mainline-v6.8-rc3
commit 832698373a25950942c04a512daa652c18a9b513
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9E2MF
CVE: CVE-2024-26772

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=832698373a25950942c04a512daa652c18a9b513



--------------------------------

Places the logic for checking if the group's block bitmap is corrupt under
the protection of the group lock to avoid allocating blocks from the group
with a corrupted block bitmap.

Signed-off-by: default avatarBaokun Li <libaokun1@huawei.com>
Reviewed-by: default avatarJan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20240104142040.2835097-8-libaokun1@huawei.com


Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
Signed-off-by: default avatarZhaoLong Wang <wangzhaolong1@huawei.com>
parent 1ed85cbd
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