Locker's tblock: ffffc90002541100: 00000000 00000000 00000000 00000000
Tlock: ffffc900027625a0: 00020000 80018000 5d0c85d0 ffff8880
Tlock: ffffc900027625b0: 69407330 ffff8880 01140000 07002000
Tlock: ffffc900027625c0: 02760104 ffffc900 00000010 00000730
Tlock: ffffc900027625d0: 00000000 00000000 00000000 00000000
Tlock: ffffc900027625e0: 00000000 00000000
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:835!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4399 Comm: syz.0.45 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:txLock+0x1af1/0x1b10 fs/jfs/jfs_txnmgr.c:835
Code: 8a 48 c7 c6 40 6d 62 8a ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 08 6a 00 6a 48 e8 83 7f 11 01 48 83 c4 10 <0f> 0b e8 48 88 a6 fe 4c 89 ff 48 c7 c6 a0 73 62 8a e8 c9 6e d9 fe
RSP: 0018:ffffc90004786bc8 EFLAGS: 00010282
RAX: f9d7efa48413c200 RBX: 0000000000000000 RCX: ffff88802cab5940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900027625a2 R08: ffffc90004786547 R09: 1ffff920008f0ca8
R10: dffffc0000000000 R11: fffff520008f0ca9 R12: 1ffff920004ec4b4
R13: dffffc0000000000 R14: 0000000000004001 R15: 0000000000000010
FS: 00007fc7a45386c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a40914000 CR3: 0000000069924000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
xtInsert+0x7ae/0xc50 fs/jfs/jfs_xtree.c:641
extAlloc+0xa1f/0xf80 fs/jfs/jfs_extent.c:148
jfs_get_block+0x355/0xad0 fs/jfs/inode.c:264
get_more_blocks fs/direct-io.c:673 [inline]
do_direct_IO fs/direct-io.c:959 [inline]
do_blockdev_direct_IO fs/direct-io.c:1276 [inline]
__blockdev_direct_IO+0x13d4/0x3a70 fs/direct-io.c:1368
blockdev_direct_IO include/linux/fs.h:3345 [inline]
jfs_direct_IO+0x119/0x220 fs/jfs/inode.c:349
generic_file_direct_write+0x22c/0x490 mm/filemap.c:3687
__generic_file_write_iter+0x2b1/0x4e0 mm/filemap.c:3869
generic_file_write_iter+0xa6/0x1b0 mm/filemap.c:3944
do_iter_readv_writev+0x47e/0x5f0 fs/read_write.c:-1
do_iter_write+0x205/0x7b0 fs/read_write.c:855
iter_file_splice_write+0x699/0xcc0 fs/splice.c:689
do_splice_from fs/splice.c:767 [inline]
direct_splice_actor+0xe1/0x130 fs/splice.c:956
splice_direct_to_actor+0x4ea/0xc10 fs/splice.c:902
do_splice_direct+0x1d4/0x2f0 fs/splice.c:1008
do_sendfile+0x5fc/0xeb0 fs/read_write.c:1249
__do_sys_sendfile64 fs/read_write.c:1317 [inline]
__se_sys_sendfile64+0x141/0x1a0 fs/read_write.c:1303
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc7a4ed6629
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:00007fc7a4538028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fc7a514ffa0 RCX: 00007fc7a4ed6629
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007fc7a4f6cb39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc7a5150038 R14: 00007fc7a514ffa0 R15: 00007fff22668038
</TASK>
Modules linked in:
---[ end trace 72576b995ed99530 ]---
RIP: 0010:txLock+0x1af1/0x1b10 fs/jfs/jfs_txnmgr.c:835
Code: 8a 48 c7 c6 40 6d 62 8a ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 08 6a 00 6a 48 e8 83 7f 11 01 48 83 c4 10 <0f> 0b e8 48 88 a6 fe 4c 89 ff 48 c7 c6 a0 73 62 8a e8 c9 6e d9 fe
RSP: 0018:ffffc90004786bc8 EFLAGS: 00010282
RAX: f9d7efa48413c200 RBX: 0000000000000000 RCX: ffff88802cab5940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900027625a2 R08: ffffc90004786547 R09: 1ffff920008f0ca8
R10: dffffc0000000000 R11: fffff520008f0ca9 R12: 1ffff920004ec4b4
R13: dffffc0000000000 R14: 0000000000004001 R15: 0000000000000010
FS: 00007fc7a45386c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a40914000 CR3: 0000000069924000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400