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 PTI
CPU: 1 UID: 0 PID: 12011 Comm: syz.7.1583 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:txEnd+0x51f/0x530 fs/jfs/jfs_txnmgr.c:530
Code: e9 cc fe ff ff e8 21 99 4c fe 48 c7 c7 e0 8c 4e 8c 48 c7 c6 d9 88 4e 8c ba 12 02 00 00 48 c7 c1 20 8d 4e 8c e8 02 c3 ab 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:ffffc9000e6e6740 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff888035c08800 RCX: 559e1e28a5fb7000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002741ff2 R08: ffffffff8fd4c3ab R09: 1ffffffff1fa9875
R10: dffffc0000000000 R11: fffffbfff1fa9876 R12: 1ffff920004e8403
R13: dffffc0000000000 R14: ffffc90002742018 R15: 000000000000001d
FS:  00007fc206bdf6c0(0000) GS:ffff888123b9e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f85b13e12b8 CR3: 000000004a140000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 jfs_truncate_nolock+0x2b6/0x340 fs/jfs/inode.c:399
 jfs_truncate+0xce/0x140 fs/jfs/inode.c:420
 jfs_write_begin+0x6f/0x80 fs/jfs/inode.c:308
 generic_perform_write+0x2d5/0x8e0 mm/filemap.c:4392
 generic_file_write_iter+0xae/0x330 mm/filemap.c:4535
 __kernel_write_iter+0x44a/0x8f0 fs/read_write.c:621
 dump_write_iter fs/coredump.c:1354 [inline]
 dump_emit_page fs/coredump.c:1527 [inline]
 dump_user_range+0x715/0xca0 fs/coredump.c:1595
 elf_core_dump+0x346a/0x3a70 fs/binfmt_elf.c:2106
 coredump_write fs/coredump.c:1146 [inline]
 do_coredump+0x5d99/0x6910 fs/coredump.c:1231
 vfs_coredump+0xb41/0x10f0 fs/coredump.c:1306
 get_signal+0x108f/0x12c0 kernel/signal.c:3097
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:101 [inline]
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline]
 irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline]
 irqentry_exit+0x2c0/0x920 kernel/entry/common.c:152
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 002b:0000200000000448 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fc206025fa0 RCX: 00007fc205d9e2d9
RDX: 0000000000000000 RSI: 0000200000000440 RDI: 0000000002000000
RBP: 00007fc205e35888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fc206026038 R14: 00007fc206025fa0 R15: 00007fff85dfa978
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0x51f/0x530 fs/jfs/jfs_txnmgr.c:530
Code: e9 cc fe ff ff e8 21 99 4c fe 48 c7 c7 e0 8c 4e 8c 48 c7 c6 d9 88 4e 8c ba 12 02 00 00 48 c7 c1 20 8d 4e 8c e8 02 c3 ab 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:ffffc9000e6e6740 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff888035c08800 RCX: 559e1e28a5fb7000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002741ff2 R08: ffffffff8fd4c3ab R09: 1ffffffff1fa9875
R10: dffffc0000000000 R11: fffffbfff1fa9876 R12: 1ffff920004e8403
R13: dffffc0000000000 R14: ffffc90002742018 R15: 000000000000001d
FS:  00007fc206bdf6c0(0000) GS:ffff888123b9e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f85b13e12b8 CR3: 000000004a140000 CR4: 00000000003526f0