Currently, zalloc() calls uncondtionally memset(), if the allocation failes, memset() will write to a null pointer.
Fix by using kzalloc(). Signed-off-by: Richard Weinberger <[email protected]> --- fs/ext4/ext4_common.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/ext4/ext4_common.h b/fs/ext4/ext4_common.h index 84500e990a..346752092b 100644 --- a/fs/ext4/ext4_common.h +++ b/fs/ext4/ext4_common.h @@ -24,6 +24,7 @@ #include <ext4fs.h> #include <malloc.h> #include <asm/cache.h> +#include <linux/compat.h> #include <linux/errno.h> #if defined(CONFIG_EXT4_WRITE) #include "ext4_journal.h" @@ -43,9 +44,7 @@ static inline void *zalloc(size_t size) { - void *p = memalign(ARCH_DMA_MINALIGN, size); - memset(p, 0, size); - return p; + return kzalloc(size, 0); } int ext4fs_read_inode(struct ext2_data *data, int ino, -- 2.35.3
