[v6.1] kernel BUG in txEnd

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Sep 16, 2023, 6:44:01 AM9/16/23
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Hello,

syzbot found the following issue on:

HEAD commit: 09045dae0d90 Linux 6.1.53
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=15abc974680000
kernel config: https://syzkaller.appspot.com/x/.config?x=195b6ef285251409
dashboard link: https://syzkaller.appspot.com/bug?extid=adbd27b96d05786172d1
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11c85174680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=102f7174680000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c3b1bb820e74/disk-09045dae.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/4c5cfb0563d9/vmlinux-09045dae.xz
kernel image: https://storage.googleapis.com/syzbot-assets/c682edb60d96/bzImage-09045dae.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/1a4df8d72230/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+adbd27...@syzkaller.appspotmail.com

ERROR: (device loop0): xtTruncate: XT_GETPAGE: xtree page corrupt
ERROR: (device loop0): remounting filesystem as read-only
BUG at fs/jfs/jfs_txnmgr.c:528 assert(tblk->next == 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:528!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3544 Comm: syz-executor393 Not tainted 6.1.53-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:txEnd+0x552/0x560 fs/jfs/jfs_txnmgr.c:528
Code: fe e9 cd fe ff ff e8 dd 85 82 fe 48 c7 c7 00 91 24 8b 48 c7 c6 f9 8c 24 8b ba 10 02 00 00 48 c7 c1 40 91 24 8b e8 c7 70 7c 07 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 41 57 41 56 41 55 41
RSP: 0018:ffffc90003a8f5b0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: 0000000000000001 RCX: 91f26da63969d500
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 1ffff920004c8227 R08: ffffffff816dbf1c R09: fffff52000751e2d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffc90002641138 R15: 0000000000000110
FS: 000055555643a380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdc481fdd8 CR3: 000000007c607000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
jfs_truncate_nolock+0x2ef/0x380 fs/jfs/inode.c:396
jfs_truncate+0xc7/0x140 fs/jfs/inode.c:417
jfs_setattr+0x603/0x840 fs/jfs/file.c:119
notify_change+0xdcd/0x1080 fs/attr.c:483
do_truncate+0x21c/0x300 fs/open.c:65
handle_truncate fs/namei.c:3216 [inline]
do_open fs/namei.c:3561 [inline]
path_openat+0x27e2/0x2e60 fs/namei.c:3714
do_filp_open+0x230/0x480 fs/namei.c:3741
do_sys_openat2+0x13b/0x500 fs/open.c:1318
do_sys_open fs/open.c:1334 [inline]
__do_sys_open fs/open.c:1342 [inline]
__se_sys_open fs/open.c:1338 [inline]
__x64_sys_open+0x221/0x270 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa4fa86a5f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdd2253538 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffdd2253718 RCX: 00007fa4fa86a5f9
RDX: 0000000000000000 RSI: 000000000014527e RDI: 0000000020000040
RBP: 00007fa4fa8e3610 R08: 0000000000005dea R09: 0000000000000000
R10: 00007ffdd2253400 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdd2253708 R14: 0000000000000001 R15: 0000000000000001
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0x552/0x560 fs/jfs/jfs_txnmgr.c:528
Code: fe e9 cd fe ff ff e8 dd 85 82 fe 48 c7 c7 00 91 24 8b 48 c7 c6 f9 8c 24 8b ba 10 02 00 00 48 c7 c1 40 91 24 8b e8 c7 70 7c 07 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 41 57 41 56 41 55 41
RSP: 0018:ffffc90003a8f5b0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: 0000000000000001 RCX: 91f26da63969d500
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 1ffff920004c8227 R08: ffffffff816dbf1c R09: fffff52000751e2d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffc90002641138 R15: 0000000000000110
FS: 000055555643a380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdc481fdd8 CR3: 000000007c607000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


---
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