[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.33' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.762227] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 38.771072] REISERFS (device loop0): using ordered data mode [ 38.777636] reiserfs: using flush barriers [ 38.782895] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 38.799091] REISERFS (device loop0): checking transaction log (loop0) [ 38.807502] REISERFS (device loop0): Using rupasov hash to sort names [ 38.814668] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 38.834298] ------------[ cut here ]------------ [ 38.839140] kernel BUG at fs/reiserfs/journal.c:509! [ 38.845494] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 38.850873] CPU: 0 PID: 8119 Comm: syz-executor164 Not tainted 4.19.211-syzkaller #0 [ 38.858729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 38.868077] RIP: 0010:reiserfs_in_journal+0x49c/0x6f0 [ 38.873244] Code: 39 ec 75 a7 e8 95 9d 8c ff 48 8d 7d 08 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 79 01 00 00 48 3b 5d 08 75 86 e8 74 9d 8c ff <0f> 0b e8 6d 9d 8c ff 48 8b 9b 80 06 00 00 48 b8 00 00 00 00 00 fc [ 38.892208] RSP: 0018:ffff888095137340 EFLAGS: 00010293 [ 38.897549] RAX: ffff8880b53a6080 RBX: ffff8880b131a500 RCX: ffffffff81d5e7d1 [ 38.904810] RDX: 0000000000000000 RSI: ffffffff81d5e7fc RDI: ffffc90001b46050 [ 38.912776] RBP: ffffc90001b46048 R08: ffff888095137430 R09: 0000000000000213 [ 38.920030] R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000213 [ 38.927278] R13: 0000000000000213 R14: dffffc0000000000 R15: 0000000000000b32 [ 38.934538] FS: 0000555555f9e300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 38.942737] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.948594] CR2: 0000555f50998438 CR3: 00000000aa2e6000 CR4: 00000000003406f0 [ 38.955841] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.963087] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.970331] Call Trace: [ 38.972901] scan_bitmap_block.constprop.0+0x486/0xf60 [ 38.978159] ? reiserfs_discard_all_prealloc+0x180/0x180 [ 38.983594] reiserfs_allocate_blocknrs+0x1f8f/0x4cd0 [ 38.988762] ? scan_bitmap_block.constprop.0+0xf60/0xf60 [ 38.994277] ? journal_begin+0x210/0x400 [ 38.998317] reiserfs_get_block+0x948/0x3e40 [ 39.002709] ? reiserfs_commit_write+0x6f0/0x6f0 [ 39.007443] ? lock_downgrade+0x720/0x720 [ 39.011567] ? lock_acquire+0x170/0x3c0 [ 39.015536] ? check_preemption_disabled+0x1f/0x280 [ 39.020528] ? check_preemption_disabled+0x41/0x280 [ 39.025522] ? alloc_buffer_head+0x20/0x130 [ 39.029826] ? do_raw_spin_unlock+0x171/0x230 [ 39.034308] ? _raw_spin_unlock+0x29/0x40 [ 39.038441] ? create_page_buffers+0x190/0x350 [ 39.043085] __block_write_begin_int+0x46c/0x17b0 [ 39.047907] ? reiserfs_commit_write+0x6f0/0x6f0 [ 39.052642] ? __breadahead_gfp+0x130/0x130 [ 39.056942] ? wait_for_stable_page+0x122/0x360 [ 39.061589] reiserfs_write_begin+0x39f/0xa10 [ 39.066065] generic_perform_write+0x1f8/0x4d0 [ 39.070627] ? filemap_page_mkwrite+0x2f0/0x2f0 [ 39.075273] ? current_time+0x1c0/0x1c0 [ 39.079224] ? lock_acquire+0x170/0x3c0 [ 39.083173] __generic_file_write_iter+0x24b/0x610 [ 39.088084] generic_file_write_iter+0x3f8/0x730 [ 39.092819] __vfs_write+0x51b/0x770 [ 39.096511] ? kernel_read+0x110/0x110 [ 39.100393] ? check_preemption_disabled+0x41/0x280 [ 39.105575] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 39.110584] vfs_write+0x1f3/0x540 [ 39.114110] ksys_write+0x12b/0x2a0 [ 39.117721] ? __ia32_sys_read+0xb0/0xb0 [ 39.121776] ? trace_hardirqs_off_caller+0x6e/0x210 [ 39.126768] ? do_syscall_64+0x21/0x620 [ 39.130733] do_syscall_64+0xf9/0x620 [ 39.134526] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.139697] RIP: 0033:0x7fa9e36678d9 [ 39.143394] 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 c0 ff ff ff f7 d8 64 89 01 48 [ 39.162383] RSP: 002b:00007ffdc5507848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.170070] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa9e36678d9 [ 39.177314] RDX: 000000006db6e559 RSI: 00000000200001c0 RDI: 0000000000000003 [ 39.184561] RBP: 0000000000000000 R08: 00007fa9e36d5ec0 R09: 00007fa9e36d5ec0 [ 39.191808] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc5507870 [ 39.199075] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 39.206635] Modules linked in: [ 39.215592] ---[ end trace 4257f72bbb175b1f ]--- [ 39.220442] RIP: 0010:reiserfs_in_journal+0x49c/0x6f0 [ 39.225678] Code: 39 ec 75 a7 e8 95 9d 8c ff 48 8d 7d 08 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 79 01 00 00 48 3b 5d 08 75 86 e8 74 9d 8c ff <0f> 0b e8 6d 9d 8c ff 48 8b 9b 80 06 00 00 48 b8 00 00 00 00 00 fc [ 39.244770] RSP: 0018:ffff888095137340 EFLAGS: 00010293 [ 39.250549] RAX: ffff8880b53a6080 RBX: ffff8880b131a500 RCX: ffffffff81d5e7d1 [ 39.257887] RDX: 0000000000000000 RSI: ffffffff81d5e7fc RDI: ffffc90001b46050 [ 39.265181] RBP: ffffc90001b46048 R08: ffff888095137430 R09: 0000000000000213 [ 39.272493] R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000213 [ 39.279826] R13: 0000000000000213 R14: dffffc0000000000 R15: 0000000000000b32 [ 39.287128] FS: 0000555555f9e300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 39.295396] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.301352] CR2: 0000555f509820d0 CR3: 00000000aa2e6000 CR4: 00000000003406f0 [ 39.308682] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.316010] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.323327] Kernel panic - not syncing: Fatal exception [ 39.328840] Kernel Offset: disabled [ 39.332453] Rebooting in 86400 seconds..