loop0: detected capacity change from 0 to 32768
ERROR: (device loop0): dbAdjCtl: the maximum free buddy is not the old root
ERROR: (device loop0): remounting filesystem as read-only
ERROR: (device loop0): xtSearch: XT_GETPAGE: xtree page corrupt
ERROR: (device loop0): remounting filesystem as read-only
xtLookup: xtSearch returned -5
ERROR: (device loop0): xtSearch: XT_GETPAGE: xtree page corrupt
ERROR: (device loop0): xtTruncate: XT_GETPAGE: xtree page corrupt
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 NOPTI
CPU: 0 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted 6.16.0-rc6-syzkaller-00205-gd786aba32000 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:txEnd+0x51f/0x530 fs/jfs/jfs_txnmgr.c:528
Code: e9 cc fe ff ff e8 11 48 7f fe 48 c7 c7 20 10 c4 8b 48 c7 c6 19 0c c4 8b ba 10 02 00 00 48 c7 c1 60 10 c4 8b e8 f2 b1 e6 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:ffffc9000f36f3a0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff888053376800 RCX: 7dd78941f1546600
RDX: ffffc9000da72000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: ffffc90001369112 R08: ffff88801fc24293 R09: 1ffff11003f84852
R10: dffffc0000000000 R11: ffffed1003f84853 R12: 1ffff9200026d227
R13: dffffc0000000000 R14: ffffc90001369138 R15: 0000000000000001
FS:  00007f0e4595d6c0(0000) GS:ffff88808d21a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0e38bffe00 CR3: 000000004449e000 CR4: 0000000000352ef0
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
 iter_file_splice_write+0x937/0x1000 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0xfe/0x160 fs/splice.c:1158
 splice_direct_to_actor+0x5a8/0xcc0 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1227
 do_sendfile+0x4da/0x7e0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
 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: 0033:0x7f0e44b8e9a9
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:00007f0e4595d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0e44db5fa0 RCX: 00007f0e44b8e9a9
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000004
RBP: 00007f0e44c10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0e44db5fa0 R15: 00007ffefb824d08
 </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 11 48 7f fe 48 c7 c7 20 10 c4 8b 48 c7 c6 19 0c c4 8b ba 10 02 00 00 48 c7 c1 60 10 c4 8b e8 f2 b1 e6 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:ffffc9000f36f3a0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff888053376800 RCX: 7dd78941f1546600
RDX: ffffc9000da72000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: ffffc90001369112 R08: ffff88801fc24293 R09: 1ffff11003f84852
R10: dffffc0000000000 R11: ffffed1003f84853 R12: 1ffff9200026d227
R13: dffffc0000000000 R14: ffffc90001369138 R15: 0000000000000001
FS:  00007f0e4595d6c0(0000) GS:ffff88808d21a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0e38bffe00 CR3: 000000004449e000 CR4: 0000000000352ef0