diff options
| author | Liao Yuanhong <liaoyuanhong@vivo.com> | 2025-08-11 20:58:16 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-28 16:34:15 +0200 |
| commit | 5e14e7060bb5b44956ad1eb9e37bfe28562284bb (patch) | |
| tree | 598dbcadb46ef7fdf558676d47ed626688347ec9 | |
| parent | 2ea0fcc8878feefc83dba282405cd593177a16ea (diff) | |
ext4: use kmalloc_array() for array space allocation
commit 76dba1fe277f6befd6ef650e1946f626c547387a upstream.
Replace kmalloc(size * sizeof) with kmalloc_array() for safer memory
allocation and overflow prevention.
Cc: stable@kernel.org
Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
Link: https://patch.msgid.link/20250811125816.570142-1-liaoyuanhong@vivo.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/ext4/orphan.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ext4/orphan.c b/fs/ext4/orphan.c index 7c7f792ad6ab..524d4658fa40 100644 --- a/fs/ext4/orphan.c +++ b/fs/ext4/orphan.c @@ -589,8 +589,9 @@ int ext4_init_orphan_info(struct super_block *sb) } oi->of_blocks = inode->i_size >> sb->s_blocksize_bits; oi->of_csum_seed = EXT4_I(inode)->i_csum_seed; - oi->of_binfo = kmalloc(oi->of_blocks*sizeof(struct ext4_orphan_block), - GFP_KERNEL); + oi->of_binfo = kmalloc_array(oi->of_blocks, + sizeof(struct ext4_orphan_block), + GFP_KERNEL); if (!oi->of_binfo) { ret = -ENOMEM; goto out_put; |