diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-26774.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-26774.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-26774.patch b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-26774.patch new file mode 100644 index 000000000..b16497843 --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-26774.patch @@ -0,0 +1,36 @@ +From 687061cfaa2ac3095170e136dd9c29a4974f41d4 Mon Sep 17 00:00:00 2001 +From: Baokun Li <libaokun1@huawei.com> +Date: Thu, 4 Jan 2024 22:20:37 +0800 +Subject: ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block + bitmap corrupt + +[ Upstream commit 993bf0f4c393b3667830918f9247438a8f6fdb5b ] + +Determine if bb_fragments is 0 instead of determining bb_free to eliminate +the risk of dividing by zero when the block bitmap is corrupted. + +Signed-off-by: Baokun Li <libaokun1@huawei.com> +Reviewed-by: Jan Kara <jack@suse.cz> +Link: https://lore.kernel.org/r/20240104142040.2835097-6-libaokun1@huawei.com +Signed-off-by: Theodore Ts'o <tytso@mit.edu> +Signed-off-by: Sasha Levin <sashal@kernel.org> +--- + fs/ext4/mballoc.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c +index 762c2f8b5b2a86..48930df9ae565b 100644 +--- a/fs/ext4/mballoc.c ++++ b/fs/ext4/mballoc.c +@@ -853,7 +853,7 @@ mb_update_avg_fragment_size(struct super_block *sb, struct ext4_group_info *grp) + { + struct ext4_sb_info *sbi = EXT4_SB(sb); + +- if (!test_opt2(sb, MB_OPTIMIZE_SCAN) || grp->bb_free == 0) ++ if (!test_opt2(sb, MB_OPTIMIZE_SCAN) || grp->bb_fragments == 0) + return; + + write_lock(&sbi->s_mb_rb_lock); +-- +cgit 1.2.3-korg + |