Message-ID: <00000000000010719b05fed5d82f@google.com>
Date:   Fri, 23 Jun 2023 18:14:49 -0700
From:   syzbot <syzbot+4a16683f5520de8e47c4@...kaller.appspotmail.com>
To:     brauner@...nel.org, linkinjeon@...nel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        reiserfs-devel@...r.kernel.org, sj1557.seo@...sung.com,
        syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk
Subject: [syzbot] [reiserfs?] [fat?] BUG: corrupted list in __mark_inode_dirty

Hello,

syzbot found the following issue on:

HEAD commit:    45a3e24f65e9 Linux 6.4-rc7
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12848413280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=24ce1b2abaee24cc
dashboard link: https://syzkaller.appspot.com/bug?extid=4a16683f5520de8e47c4
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16bd1013280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=101d4adf280000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/90ee4ebebbf0/disk-45a3e24f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/01569690e4bb/vmlinux-45a3e24f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/19f38d7ce866/bzImage-45a3e24f.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/245a7035bcde/mount_1.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+4a16683f5520de8e47c4@...kaller.appspotmail.com

list_add corruption. next->prev should be prev (ffffffff91dfe878), but was 0000060100040048. (next=ffff888070e8fc38).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4986 Comm: udevd Not tainted 6.4.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:__list_add_valid+0xa5/0x100 lib/list_debug.c:27
Code: c7 c7 00 f8 a6 8a e8 8a df 50 fd 0f 0b 48 c7 c7 a0 f8 a6 8a e8 7c df 50 fd 0f 0b 4c 89 e1 48 c7 c7 00 f9 a6 8a e8 6b df 50 fd <0f> 0b 48 89 f1 48 c7 c7 80 f9 a6 8a 4c 89 e6 e8 57 df 50 fd 0f 0b
RSP: 0018:ffffc900033cfa20 EFLAGS: 00010286
RAX: 0000000000000075 RBX: ffff88802068ee08 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8167dd6c RDI: 0000000000000005
RBP: ffff88802068efa0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000001 R12: ffff888070e8fc38
R13: ffff88802068efa0 R14: ffff88802068efa0 R15: ffff888070e8fc38
FS:  00007fc75aad2c80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000060100040048 CR3: 0000000028d93000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_add include/linux/list.h:69 [inline]
 list_add include/linux/list.h:88 [inline]
 list_move include/linux/list.h:218 [inline]
 inode_io_list_move_locked+0x1fa/0x3f0 fs/fs-writeback.c:126
 __mark_inode_dirty+0x522/0xd60 fs/fs-writeback.c:2505
 generic_update_time fs/inode.c:1859 [inline]
 inode_update_time fs/inode.c:1872 [inline]
 touch_atime+0x687/0x740 fs/inode.c:1944
 file_accessed include/linux/fs.h:2198 [inline]
 filemap_read+0xa5a/0xc70 mm/filemap.c:2765
 blkdev_read_iter+0x3eb/0x760 block/fops.c:606
 call_read_iter include/linux/fs.h:1862 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x4b1/0x8a0 fs/read_write.c:470
 ksys_read+0x12b/0x250 fs/read_write.c:613
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc75a716b6a
Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffdb3cd93f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00000000003f0000 RCX: 00007fc75a716b6a
RDX: 0000000000000040 RSI: 000055c536a3f038 RDI: 0000000000000009
RBP: 0000000000000040 R08: 000055c536a3f010 R09: 0000000000002000
R10: 0000000000000015 R11: 0000000000000246 R12: 000055c536a3f010
R13: 000055c536a3f028 R14: 000055c536a58bc8 R15: 000055c536a58b70
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid+0xa5/0x100 lib/list_debug.c:27
Code: c7 c7 00 f8 a6 8a e8 8a df 50 fd 0f 0b 48 c7 c7 a0 f8 a6 8a e8 7c df 50 fd 0f 0b 4c 89 e1 48 c7 c7 00 f9 a6 8a e8 6b df 50 fd <0f> 0b 48 89 f1 48 c7 c7 80 f9 a6 8a 4c 89 e6 e8 57 df 50 fd 0f 0b
RSP: 0018:ffffc900033cfa20 EFLAGS: 00010286

RAX: 0000000000000075 RBX: ffff88802068ee08 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8167dd6c RDI: 0000000000000005
RBP: ffff88802068efa0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000001 R12: ffff888070e8fc38
R13: ffff88802068efa0 R14: ffff88802068efa0 R15: ffff888070e8fc38
FS:  00007fc75aad2c80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000060100040048 CR3: 0000000028d93000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


---
This report is generated by a bot. It may contain errors.
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