Tlock: ffffc900028a20d8: 00010000 80018000 5c63b3e0 ffff8880 Tlock: ffffc900028a20e8: 6957a930 ffff8880 01140000 07002000 Tlock: ffffc900028a20f8: 0002011c 00000000 00000000 00000000 Tlock: ffffc900028a2108: 00000000 00000000 00000000 00000000 Tlock: ffffc900028a2118: 00000000 00000000 ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:834! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 6524 Comm: syz.2.302 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:txLock+0x1af1/0x1b10 fs/jfs/jfs_txnmgr.c:834 Code: 8a 48 c7 c6 80 3a 42 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 ba 0d 01 48 83 c4 10 <0f> 0b e8 38 5f aa fe 4c 89 ff 48 c7 c6 e0 40 42 8a e8 d9 c9 dc fe RSP: 0018:ffffc900060bf890 EFLAGS: 00010286 RAX: fd02bb05bc202400 RBX: 0000000000000002 RCX: ffff888025a23b80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900028a20da R08: dffffc0000000000 R09: fffff52000c17e41 R10: fffff52000c17e41 R11: 1ffff92000c17e40 R12: 1ffff9200051441b R13: dffffc0000000000 R14: 0000000000008001 R15: 0000000000000002 FS: 00007fb18f4ce6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7371fe06a8 CR3: 0000000045a48000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: diWrite+0x43c/0x1610 fs/jfs/jfs_imap.c:654 txCommit+0x84b/0x51c0 fs/jfs/jfs_txnmgr.c:1255 jfs_commit_inode+0x2ec/0x520 fs/jfs/inode.c:108 jfs_fsync+0x181/0x1b0 fs/jfs/file.c:37 generic_write_sync include/linux/fs.h:2989 [inline] generic_file_write_iter+0x157/0x1b0 mm/filemap.c:3948 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0x712/0xd00 fs/read_write.c:594 ksys_write+0x14d/0x250 fs/read_write.c:647 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: 0033:0x7fb18fe7fec9 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:00007fb18f4ce038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fb1900d7090 RCX: 00007fb18fe7fec9 RDX: 000000000000045c RSI: 00002000000007c0 RDI: 0000000000000004 RBP: 00007fb18ff02f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb1900d7128 R14: 00007fb1900d7090 R15: 00007ffd03f82e88 Modules linked in: ---[ end trace 15e58cd0adb99575 ]--- RIP: 0010:txLock+0x1af1/0x1b10 fs/jfs/jfs_txnmgr.c:834 Code: 8a 48 c7 c6 80 3a 42 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 ba 0d 01 48 83 c4 10 <0f> 0b e8 38 5f aa fe 4c 89 ff 48 c7 c6 e0 40 42 8a e8 d9 c9 dc fe RSP: 0018:ffffc900060bf890 EFLAGS: 00010286 RAX: fd02bb05bc202400 RBX: 0000000000000002 RCX: ffff888025a23b80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900028a20da R08: dffffc0000000000 R09: fffff52000c17e41 R10: fffff52000c17e41 R11: 1ffff92000c17e40 R12: 1ffff9200051441b R13: dffffc0000000000 R14: 0000000000008001 R15: 0000000000000002 FS: 00007fb18f4ce6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7371fe06a8 CR3: 0000000045a48000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400