Commits
Jan Kara committed 80747f06d94
ext4: fix overflows in SEEK_HOLE, SEEK_DATA implementations commit e7293fd146846e2a44d29e0477e0860c60fb856b upstream. ext4_lblk_t is just u32 so multiplying it by blocksize can easily overflow for files larger than 4 GB. Fix that by properly typing the block offsets before shifting. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>