Re: [PATCH v2] erofs: fix general protection fault when reading fragment

From: Chao Yu
Date: Mon Nov 07 2022 - 22:06:51 EST


On 2022/10/21 16:53, Yue Hu wrote:
From: Yue Hu <huyue2@xxxxxxxxxxx>

As syzbot reported [1], the fragment feature sb flag is not set, so
packed_inode != NULL needs to be checked in z_erofs_read_fragment().

[1] https://lore.kernel.org/all/0000000000002e7a8905eb841ddd@xxxxxxxxxx/

Reported-by: syzbot+3faecbfd845a895c04cb@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 08a0c9ef3e7e ("erofs: support on-disk compressed fragments data")
Signed-off-by: Yue Hu <huyue2@xxxxxxxxxxx>

Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

Thanks,