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:529 assert(tblk->next == 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:529!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 17637 Comm: syz.7.2989 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:txEnd+0x51e/0x520 fs/jfs/jfs_txnmgr.c:529
Code: fe e9 cc fe ff ff e8 61 55 80 fe 48 c7 c7 80 1e 04 8b 48 c7 c6 79 1a 04 8b ba 11 02 00 00 48 c7 c1 c0 1e 04 8b e8 62 c5 72 07 <0f> 0b f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4
RSP: 0018:ffffc900036174e0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff8880227ca800 RCX: 3121bd08846d6300
RDX: ffffc9000bdd9000 RSI: 000000000005f9e4 RDI: 000000000005f9e5
RBP: ffffc9000266c0e2 R08: ffff8880b8f28c13 R09: 1ffff110171e5182
R10: dffffc0000000000 R11: ffffed10171e5183 R12: 1ffff920004cd821
R13: dffffc0000000000 R14: ffffc9000266c108 R15: 0000000000000051
FS:  00007f0fc0dc66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e4cbb CR3: 0000000052322000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 jfs_truncate_nolock+0x235/0x2c0 fs/jfs/inode.c:397
 jfs_truncate fs/jfs/inode.c:418 [inline]
 jfs_write_failed+0x119/0x190 fs/jfs/inode.c:295
 jfs_direct_IO+0x1f1/0x220 fs/jfs/inode.c:348
 generic_file_direct_write+0x1d4/0x3e0 mm/filemap.c:3956
 __generic_file_write_iter+0x11b/0x230 mm/filemap.c:4112
 generic_file_write_iter+0xaf/0x2e0 mm/filemap.c:4152
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x738/0xc30 fs/read_write.c:860
 iter_file_splice_write+0x6a3/0xcb0 fs/splice.c:736
 do_splice_from fs/splice.c:933 [inline]
 direct_splice_actor+0xe8/0x130 fs/splice.c:1142
 splice_direct_to_actor+0x304/0x8c0 fs/splice.c:1088
 do_splice_direct+0x1d5/0x2f0 fs/splice.c:1194
 do_sendfile+0x5f2/0xef0 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64+0x145/0x1a0 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0fbff9c799
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:00007f0fc0dc6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0fc0215fa0 RCX: 00007f0fbff9c799
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f0fc0032c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0fc0216038 R14: 00007f0fc0215fa0 R15: 00007ffca062fd58
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0x51e/0x520 fs/jfs/jfs_txnmgr.c:529
Code: fe e9 cc fe ff ff e8 61 55 80 fe 48 c7 c7 80 1e 04 8b 48 c7 c6 79 1a 04 8b ba 11 02 00 00 48 c7 c1 c0 1e 04 8b e8 62 c5 72 07 <0f> 0b f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4
RSP: 0018:ffffc900036174e0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff8880227ca800 RCX: 3121bd08846d6300
RDX: ffffc9000bdd9000 RSI: 000000000005f9e4 RDI: 000000000005f9e5
RBP: ffffc9000266c0e2 R08: ffff8880b8f28c13 R09: 1ffff110171e5182
R10: dffffc0000000000 R11: ffffed10171e5183 R12: 1ffff920004cd821
R13: dffffc0000000000 R14: ffffc9000266c108 R15: 0000000000000051
FS:  00007f0fc0dc66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e4cbb CR3: 0000000052322000 CR4: 00000000003506e0