ERROR: (device loop9): 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: 9878 Comm: syz.9.815 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/10/2026
RIP: 0010:txEnd+0x51f/0x530 fs/jfs/jfs_txnmgr.c:530
Code: e9 cc fe ff ff e8 11 e2 5c fe 48 c7 c7 20 95 2c 8c 48 c7 c6 19 91 2c 8c ba 12 02 00 00 48 c7 c1 60 95 2c 8c e8 a2 2f be 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:ffffc90004bae8a0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff888052870000 RCX: c1cce7c4bb310400
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900026a1442 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1d3ca24 R12: 1ffff920004d428d
R13: dffffc0000000000 R14: ffffc900026a1468 R15: 0000000000000003
FS:  00007f3dd98f16c0(0000) GS:ffff888125054000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f570f550286 CR3: 000000006028a000 CR4: 0000000000350ef0
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+0x2d5/0x8f0 mm/filemap.c:4358
 generic_file_write_iter+0xae/0x330 mm/filemap.c:4501
 __kernel_write_iter+0x44a/0x8f0 fs/read_write.c:621
 dump_emit_page fs/coredump.c:1298 [inline]
 dump_user_range+0xc19/0x12c0 fs/coredump.c:1372
 elf_core_dump+0x3485/0x3a90 fs/binfmt_elf.c:2109
 coredump_write+0x1290/0x1960 fs/coredump.c:1052
 do_coredump fs/coredump.c:1131 [inline]
 vfs_coredump+0x36ff/0x44b0 fs/coredump.c:1200
 get_signal+0x1094/0x12c0 kernel/signal.c:3031
 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+0x2ba/0x8f0 kernel/entry/common.c:165
 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: 00007f3dd8c25fa0 RCX: 00007f3dd899de99
RDX: 0000000000000000 RSI: 0000200000000440 RDI: 0000000002000000
RBP: 00007f3dd8a33eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f3dd8c26038 R14: 00007f3dd8c25fa0 R15: 00007ffd964ca9d8
 </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 11 e2 5c fe 48 c7 c7 20 95 2c 8c 48 c7 c6 19 91 2c 8c ba 12 02 00 00 48 c7 c1 60 95 2c 8c e8 a2 2f be 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:ffffc90004bae8a0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: ffff888052870000 RCX: c1cce7c4bb310400
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900026a1442 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1d3ca24 R12: 1ffff920004d428d
R13: dffffc0000000000 R14: ffffc900026a1468 R15: 0000000000000003
FS:  00007f3dd98f16c0(0000) GS:ffff888125054000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f570f550286 CR3: 000000006028a000 CR4: 0000000000350ef0