ip: ffff888012a23588: 00000300 00000000 12a23590 ffff8880 ip: ffff888012a23598: 12a23590 ffff8880 00000000 00000000 ip: ffff888012a235a8: 00000000 00000000 00000000 00000000 ip: ffff888012a235b8: 00000000 dead4ead ffffffff 00000000 ip: ffff888012a235c8: ffffffff ffffffff 932343d0 ffffffff ip: ffff888012a235d8: 00000000 00000000 00000000 00000000 ip: ffff888012a235e8: 8bccea60 ffffffff 00000200 00000000 ip: ffff888012a235f8: 12a235f8 ffff8880 12a235f8 ffff8880 ip: ffff888012a23608: 12a235a0 ffff8880 9a2f5f60 ffffffff ip: ffff888012a23618: 00000000 00000000 00000000 00000000 ip: ffff888012a23628: 8bde4240 ffffffff 00000400 00000000 ip: ffff888012a23638: 00000000 00000000 12a23640 ffff8880 ip: ffff888012a23648: 12a23640 ffff8880 00000000 00000000 ip: ffff888012a23658: 00000000 00000000 00000000 00000000 ip: ffff888012a23668: 00000000 00000000 mp: ffff8880316d61f0: 00001000 00000004 00006f1c 00000000 mp: ffff8880316d6200: 3ae28a28 ffff8880 316d67d0 ffff8880 mp: ffff8880316d6210: 00000005 00000000 00000001 00000000 mp: ffff8880316d6220: 11d46000 ffff8880 00000722 00000000 mp: ffff8880316d6230: 00000000 dead4ead ffffffff 00000000 mp: ffff8880316d6240: ffffffff ffffffff 9a3ebbe0 ffffffff mp: ffff8880316d6250: 93cbf0a8 ffffffff 00000000 00000000 mp: ffff8880316d6260: 8c0b56a0 ffffffff 00000300 00000000 mp: ffff8880316d6270: 316d6270 ffff8880 316d6270 ffff8880 mp: ffff8880316d6280: 00475180 ffffea00 35858000 ffff8880 mp: ffff8880316d6290: 00001000 00012b4c 00000003 00000000 mp: ffff8880316d62a0: 3ae28800 ffff8880 Locker's tblock: ffffc90000ee9000: 00000000 00000000 00000000 00000000 Locker's tblock: ffffc90000ee9010: 00000000 00000000 00000000 00000000 Locker's tblock: ffffc90000ee9020: 00000000 00000000 00000000 00000000 Locker's tblock: ffffc90000ee9030: 00000000 dead4ead ffffffff 00000000 Locker's tblock: ffffc90000ee9040: ffffffff ffffffff 9a3ebde0 ffffffff Locker's tblock: ffffc90000ee9050: 00000000 00000000 00000000 00000000 Locker's tblock: ffffc90000ee9060: 8c0b6b60 ffffffff 00000300 00000000 Locker's tblock: ffffc90000ee9070: 00ee9070 ffffc900 00ee9070 ffffc900 Locker's tblock: ffffc90000ee9080: 00000000 00000000 00000000 00000000 Locker's tblock: ffffc90000ee9090: 00000000 00000000 00000000 00000000 Locker's tblock: ffffc90000ee90a0: 00000000 00000000 00000000 00000000 Locker's tblock: ffffc90000ee90b0: 00000000 dead4ead ffffffff 00000000 Locker's tblock: ffffc90000ee90c0: ffffffff ffffffff 9a3ebdc0 ffffffff Locker's tblock: ffffc90000ee90d0: 00000000 00000000 00000000 00000000 Locker's tblock: ffffc90000ee90e0: 8c0b6b20 ffffffff 00000300 00000000 Locker's tblock: ffffc90000ee90f0: 00ee90f0 ffffc900 00ee90f0 ffffc900 Locker's tblock: ffffc90000ee9100: 00000000 00000000 00000000 00000000 Tlock: ffffc90001087120: 00040003 40048884 316d61f0 ffff8880 Tlock: ffffc90001087130: 12a21680 ffff8880 01140000 01000008 Tlock: ffffc90001087140: 11d46160 ffff8880 00000001 00000722 Tlock: ffffc90001087150: 00000000 00000000 00000000 00000000 Tlock: ffffc90001087160: 00000000 00000000 ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:835! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5317 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:txLock+0x1c7a/0x1cc0 fs/jfs/jfs_txnmgr.c:835 Code: 48 c7 c6 80 71 0b 8c ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 30 6a 00 6a 48 e8 1b 92 50 01 48 83 c4 10 90 <0f> 0b e8 4f a7 65 fe 4c 89 ff 48 c7 c6 60 79 0b 8c e8 c0 1a c8 fd RSP: 0018:ffffc9000eea70a0 EFLAGS: 00010286 RAX: 0a04e466866c9c00 RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc90020802000 RSI: 000000000002cdac RDI: 000000000002cdad RBP: ffffc9000eea71d0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1cbd9ec R12: 0000000000000010 R13: dffffc0000000000 R14: 1ffff92000210e24 R15: ffffc90001087122 FS: 00007ff40b4016c0(0000) GS:ffff88808ca59000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000044000 CR3: 000000001f709000 CR4: 0000000000352ef0 Call Trace: xtInsert+0x92f/0xf20 fs/jfs/jfs_xtree.c:645 extAlloc+0xad9/0x1020 fs/jfs/jfs_extent.c:150 jfs_get_block+0x358/0xad0 fs/jfs/inode.c:254 __block_write_begin_int+0x6c6/0x1910 fs/buffer.c:2142 block_write_begin+0x8d/0x120 fs/buffer.c:2253 jfs_write_begin+0x35/0x80 fs/jfs/inode.c:306 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4314 generic_file_write_iter+0x14a/0x680 mm/filemap.c:4457 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff40a59c799 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:00007ff40b400fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff40a816090 RCX: 00007ff40a59c799 RDX: 00000000fffffdef RSI: 00002000000000c0 RDI: 000000000000000d RBP: 00007ff40a632bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff40a816128 R14: 00007ff40a816090 R15: 00007ffd74efefa8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txLock+0x1c7a/0x1cc0 fs/jfs/jfs_txnmgr.c:835 Code: 48 c7 c6 80 71 0b 8c ba 01 00 00 00 b9 10 00 00 00 41 b8 04 00 00 00 4c 8b 4c 24 30 6a 00 6a 48 e8 1b 92 50 01 48 83 c4 10 90 <0f> 0b e8 4f a7 65 fe 4c 89 ff 48 c7 c6 60 79 0b 8c e8 c0 1a c8 fd RSP: 0018:ffffc9000eea70a0 EFLAGS: 00010286 RAX: 0a04e466866c9c00 RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc90020802000 RSI: 000000000002cdac RDI: 000000000002cdad RBP: ffffc9000eea71d0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1cbd9ec R12: 0000000000000010 R13: dffffc0000000000 R14: 1ffff92000210e24 R15: ffffc90001087122 FS: 00007ff40b4016c0(0000) GS:ffff88808ca59000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000044000 CR3: 000000001f709000 CR4: 0000000000352ef0