ERROR: (device loop4): remounting filesystem as read-only
ERROR: (device loop4): xtTruncate: stack overrun!
BUG at fs/jfs/jfs_txnmgr.c:528 assert(tblk->next == 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:528!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6275 Comm: syz.4.58 Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:txEnd+0x51f/0x530 fs/jfs/jfs_txnmgr.c:528
Code: e9 cc fe ff ff e8 51 8c 81 fe 48 c7 c7 e0 ee c3 8b 48 c7 c6 d9 ea c3 8b ba 10 02 00 00 48 c7 c1 20 ef c3 8b e8 d2 c8 e8 fd 90 <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffc900054e76a0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff8880287e2000 RCX: d66efd04a348c500
RDX: ffffc9000c81a000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90002759112 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa9ec R12: 1ffff920004eb227
R13: dffffc0000000000 R14: ffffc90002759138 R15: 0000000000000002
FS:  00007f4d926616c0(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2b4d85d000 CR3: 0000000029fae000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jfs_truncate_nolock+0x2b6/0x340 fs/jfs/inode.c:391
 jfs_truncate fs/jfs/inode.c:412 [inline]
 jfs_write_failed+0x119/0x190 fs/jfs/inode.c:289
 jfs_direct_IO+0x1f4/0x220 fs/jfs/inode.c:342
 generic_file_direct_write+0x1db/0x3e0 mm/filemap.c:4046
 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4215
 generic_file_write_iter+0x10f/0x540 mm/filemap.c:4255
 do_iter_readv_writev+0x56b/0x7f0 fs/read_write.c:-1
 vfs_writev+0x31a/0x960 fs/read_write.c:1057
 do_pwritev fs/read_write.c:1153 [inline]
 __do_sys_pwritev2 fs/read_write.c:1211 [inline]
 __se_sys_pwritev2+0x179/0x290 fs/read_write.c:1202
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4d9178e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4d92661038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f4d919b5fa0 RCX: 00007f4d9178e929
RDX: 0000000000000001 RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007f4d91810b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001400 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4d919b5fa0 R15: 00007ffd5ec3e8e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0x51f/0x530 fs/jfs/jfs_txnmgr.c:528
Code: e9 cc fe ff ff e8 51 8c 81 fe 48 c7 c7 e0 ee c3 8b 48 c7 c6 d9 ea c3 8b ba 10 02 00 00 48 c7 c1 20 ef c3 8b e8 d2 c8 e8 fd 90 <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffc900054e76a0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff8880287e2000 RCX: d66efd04a348c500
RDX: ffffc9000c81a000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90002759112 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa9ec R12: 1ffff920004eb227
R13: dffffc0000000000 R14: ffffc90002759138 R15: 0000000000000002
FS:  00007f4d926616c0(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2b4d85d000 CR3: 0000000029fae000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400