lkml.org 
[lkml]   [2022]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH v2] fs: f2fs: remove WARN_ON in f2fs_is_valid_blkaddr
From


On 2022/4/15 21:19, Dongliang Mu wrote:
> From: Dongliang Mu <mudongliangabcd@gmail.com>
>
> Syzbot triggers two WARNs in f2fs_is_valid_blkaddr and
> __is_bitmap_valid. For example, in f2fs_is_valid_blkaddr,
> if type is DATA_GENERIC_ENHANCE or DATA_GENERIC_ENHANCE_READ,
> it invokes WARN_ON if blkaddr is not in the right range.
> The call trace is as follows:
>
> f2fs_get_node_info+0x45f/0x1070
> read_node_page+0x577/0x1190
> __get_node_page.part.0+0x9e/0x10e0
> __get_node_page
> f2fs_get_node_page+0x109/0x180
> do_read_inode
> f2fs_iget+0x2a5/0x58b0
> f2fs_fill_super+0x3b39/0x7ca0
>
> Fix these two WARNs by replacing WARN_ON with dump_stack.
>
> Reported-by: syzbot+763ae12a2ede1d99d4dc@syzkaller.appspotmail.com
> Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,

\
 
 \ /
  Last update: 2022-04-16 04:31    [W:0.033 / U:0.096 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site