diff options
| author | Edward Adam Davis <eadavis@qq.com> | 2024-07-01 22:25:03 +0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2024-08-26 21:20:48 -0400 |
| commit | 1a00a393d6a7fb1e745a41edd09019bd6a0ad64c (patch) | |
| tree | 54d97f0c1486163f361db5ae04ce5e901a06a8a2 | |
| parent | 70dd7b573afeba9b8f8a33f2ae1e4a9a2ec8c1ec (diff) | |
ext4: no need to continue when the number of entries is 1
Fixes: ac27a0ec112a ("[PATCH] ext4: initial copy of files from ext3")
Reported-by: syzbot+ae688d469e36fb5138d0@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=ae688d469e36fb5138d0
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Reported-and-tested-by: syzbot+ae688d469e36fb5138d0@syzkaller.appspotmail.com
Link: https://patch.msgid.link/tencent_BE7AEE6C7C2D216CB8949CE8E6EE7ECC2C0A@qq.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
| -rw-r--r-- | fs/ext4/namei.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 6a95713f9193..1de1c1b460a7 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1999,7 +1999,7 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir, split = count/2; hash2 = map[split].hash; - continued = hash2 == map[split - 1].hash; + continued = split > 0 ? hash2 == map[split - 1].hash : 0; dxtrace(printk(KERN_INFO "Split block %lu at %x, %i/%i\n", (unsigned long)dx_get_block(frame->at), hash2, split, count-split)); |