5.15-stable review patch. If anyone has any objections, please let me know.
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From: Liao Yuanhong liaoyuanhong@vivo.com
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 --- fs/ext4/orphan.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
--- a/fs/ext4/orphan.c +++ b/fs/ext4/orphan.c @@ -590,8 +590,9 @@ int ext4_init_orphan_info(struct super_b } 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;