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Date: Wed, 20 Apr 2022 21:57:25 +0800 From: Phi Nguyen <phind.uet@...il.com> To: Jan Kara <jack@...e.cz> Cc: syzbot <syzbot+c7358a3cd05ee786eb31@...kaller.appspotmail.com>, adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org, tytso@....edu Subject: Re: [syzbot] kernel BUG in ext4_es_cache_extent On 4/20/2022 8:16 PM, Jan Kara wrote: > On Mon 14-02-22 02:03:37, Phi Nguyen wrote: >> The non-journal mounted fs is corrupted, syzbot was able to mount it because >> a [fast commit] patch exclude its inodes from verification process. >> >> #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> master > > This patch seems to have fallen through the cracks. Phi, care to submit it > properly with your Signed-off-by etc? > > Honza > >> diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c >> index 01c9e4f743ba..385f4ae71573 100644 >> --- a/fs/ext4/inode.c >> +++ b/fs/ext4/inode.c >> @@ -4912,7 +4912,7 @@ struct inode *__ext4_iget(struct super_block *sb, unsigned long ino, >> goto bad_inode; >> } else if (!ext4_has_inline_data(inode)) { >> /* validate the block references in the inode */ >> - if (!(EXT4_SB(sb)->s_mount_state & EXT4_FC_REPLAY) && >> + if (!(journal && EXT4_SB(sb)->s_mount_state & EXT4_FC_REPLAY) && >> (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || >> (S_ISLNK(inode->i_mode) && >> !ext4_inode_is_fast_symlink(inode)))) { > Okay, I will send a patch. BR, Phi
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