ERROR: (device loop7): remounting filesystem as read-only
xtLookup: xtSearch returned -5
ERROR: (device loop7): xtSearch: xt_getpage: xtree page corrupt
ERROR: (device loop7): xtTruncate: xt_getpage: xtree page corrupt
BUG at fs/jfs/jfs_txnmgr.c:530 assert(tblk->next == 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:530!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 12162 Comm: syz.7.911 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:txEnd.cold+0x71/0xd1 fs/jfs/jfs_txnmgr.c:530
Code: e9 29 db 7b 02 e8 8f d4 dc 00 48 c7 c1 20 91 f7 8b ba 12 02 00 00 48 c7 c6 20 8b f7 8b 48 c7 c7 60 8b f7 8b e8 c0 a9 f6 ff 90 <0f> 0b e8 68 d4 dc 00 41 0f b7 f4 48 89 da 48 c7 c7 e0 90 f7 8b e8
RSP: 0018:ffffc900051cf6f0 EFLAGS: 00010282
RAX: 0000000000000036 RBX: ffffc900026e9110 RCX: 0000000000000000
RDX: 0000000000000036 RSI: ffffffff81e72029 RDI: fffff52000a39ecf
RBP: ffff88807a990000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8ee34400 R14: 0000000000000002 R15: 0000000000000002
FS:  00007f1311aef6c0(0000) GS:ffff888124476000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1310bea4c0 CR3: 00000000909c5000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 jfs_truncate_nolock+0x2e0/0x380 fs/jfs/inode.c:399
 jfs_truncate+0xe4/0x130 fs/jfs/inode.c:420
 jfs_write_failed fs/jfs/inode.c:295 [inline]
 jfs_direct_IO+0x242/0x2c0 fs/jfs/inode.c:350
 generic_file_direct_write+0x198/0x410 mm/filemap.c:4259
 __generic_file_write_iter+0x11b/0x240 mm/filemap.c:4428
 generic_file_write_iter+0xe1/0x3d0 mm/filemap.c:4468
 iter_file_splice_write+0x830/0x10a0 fs/splice.c:736
 do_splice_from fs/splice.c:936 [inline]
 direct_splice_actor+0x192/0x6c0 fs/splice.c:1159
 splice_direct_to_actor+0x345/0xa30 fs/splice.c:1103
 do_splice_direct_actor fs/splice.c:1202 [inline]
 do_splice_direct+0x174/0x240 fs/splice.c:1228
 do_sendfile+0xadc/0xe20 fs/read_write.c:1372
 __do_sys_sendfile64 fs/read_write.c:1433 [inline]
 __se_sys_sendfile64 fs/read_write.c:1419 [inline]
 __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1419
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1310b9cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1311aef028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f1310e15fa0 RCX: 00007f1310b9cdd9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f1310c32d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1310e16038 R14: 00007f1310e15fa0 R15: 00007ffca6c67338
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd.cold+0x71/0xd1 fs/jfs/jfs_txnmgr.c:530
Code: e9 29 db 7b 02 e8 8f d4 dc 00 48 c7 c1 20 91 f7 8b ba 12 02 00 00 48 c7 c6 20 8b f7 8b 48 c7 c7 60 8b f7 8b e8 c0 a9 f6 ff 90 <0f> 0b e8 68 d4 dc 00 41 0f b7 f4 48 89 da 48 c7 c7 e0 90 f7 8b e8
RSP: 0018:ffffc900051cf6f0 EFLAGS: 00010282
RAX: 0000000000000036 RBX: ffffc900026e9110 RCX: 0000000000000000
RDX: 0000000000000036 RSI: ffffffff81e72029 RDI: fffff52000a39ecf
RBP: ffff88807a990000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8ee34400 R14: 0000000000000002 R15: 0000000000000002
FS:  00007f1311aef6c0(0000) GS:ffff888124476000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1310bea4c0 CR3: 00000000909c5000 CR4: 0000000000350ef0