[  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 '10.128.0.200' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   45.227977][ T8464] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal
[   45.237418][ T8464] REISERFS (device loop0): using ordered data mode
[   45.246262][ T8464] reiserfs: using flush barriers
[   45.253870][ T8464] REISERFS (device loop0): journal params: device loop0, size 8192, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   45.277389][ T8464] REISERFS (device loop0): checking transaction log (loop0)
[   46.191242][ T8464] REISERFS (device loop0): Using rupasov hash to sort names
[   46.199158][ T8464] REISERFS (device loop0): using 3.5.x disk format
[   46.206098][ T8464] BUG: kernel NULL pointer dereference, address: 0000000000000000
[   46.213874][ T8464] #PF: supervisor instruction fetch in kernel mode
[   46.220337][ T8464] #PF: error_code(0x0010) - not-present page
[   46.226282][ T8464] PGD 1d5b1067 P4D 1d5b1067 PUD 13a4d067 PMD 0 
[   46.232501][ T8464] Oops: 0010 [#1] PREEMPT SMP KASAN
[   46.237665][ T8464] CPU: 0 PID: 8464 Comm: syz-executor889 Not tainted 5.10.0-rc7-syzkaller #0
[   46.246384][ T8464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.256410][ T8464] RIP: 0010:0x0
[   46.259842][ T8464] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[   46.267522][ T8464] RSP: 0018:ffffc900015ffa10 EFLAGS: 00010246
[   46.273554][ T8464] RAX: 1ffffffff13857c8 RBX: dffffc0000000000 RCX: ffff8880152c8000
[   46.281497][ T8464] RDX: 0000000000000000 RSI: ffff88802e27dbe8 RDI: ffff888034c90190
[   46.289438][ T8464] RBP: ffffffff89c2be40 R08: ffffffff81c397ee R09: fffffbfff1eabc57
[   46.297377][ T8464] R10: fffffbfff1eabc57 R11: 0000000000000000 R12: 0000000000000000
[   46.305316][ T8464] R13: ffff888034c90190 R14: 1ffff11005c4fb7d R15: ffff88802e27dbe8
[   46.313255][ T8464] FS:  00000000023f0880(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   46.322150][ T8464] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.328699][ T8464] CR2: ffffffffffffffd6 CR3: 0000000012d42000 CR4: 00000000001506f0
[   46.336644][ T8464] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.344584][ T8464] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.352530][ T8464] Call Trace:
[   46.355861][ T8464]  __lookup_slow+0x240/0x370
[   46.360463][ T8464]  lookup_one_len+0x10e/0x200
[   46.365110][ T8464]  reiserfs_lookup_privroot+0x85/0x1e0
[   46.370535][ T8464]  reiserfs_fill_super+0x2a57/0x3140
[   46.375796][ T8464]  ? vsnprintf+0x19f5/0x1a90
[   46.380353][ T8464]  ? snprintf+0x6f/0x90
[   46.384477][ T8464]  ? set_blocksize+0x1f5/0x3c0
[   46.389209][ T8464]  mount_bdev+0x24f/0x360
[   46.393506][ T8464]  ? reiserfs_kill_sb+0x150/0x150
[   46.398497][ T8464]  legacy_get_tree+0xea/0x180
[   46.403143][ T8464]  ? remove_save_link+0x3e0/0x3e0
[   46.408132][ T8464]  vfs_get_tree+0x88/0x270
[   46.412526][ T8464]  path_mount+0x17b4/0x2a20
[   46.416997][ T8464]  ? getname_flags+0x1fb/0x630
[   46.421744][ T8464]  __se_sys_mount+0x28c/0x320
[   46.426391][ T8464]  do_syscall_64+0x2d/0x70
[   46.430776][ T8464]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.436638][ T8464] RIP: 0033:0x44707a
[   46.440617][ T8464] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00
[   46.460188][ T8464] RSP: 002b:00007ffc217e9828 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5
[   46.468596][ T8464] RAX: ffffffffffffffda RBX: 00007ffc217e9880 RCX: 000000000044707a
[   46.476538][ T8464] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc217e9840
[   46.484493][ T8464] RBP: 00007ffc217e9840 R08: 00007ffc217e9880 R09: 00007ffc00000015
[   46.492433][ T8464] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000006
[   46.500397][ T8464] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
[   46.508454][ T8464] Modules linked in:
[   46.512319][ T8464] CR2: 0000000000000000
[   46.517200][ T8464] ---[ end trace f20ed6d33f177882 ]---
[   46.522675][ T8464] RIP: 0010:0x0
[   46.526127][ T8464] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[   46.533860][ T8464] RSP: 0018:ffffc900015ffa10 EFLAGS: 00010246
[   46.539917][ T8464] RAX: 1ffffffff13857c8 RBX: dffffc0000000000 RCX: ffff8880152c8000
[   46.547888][ T8464] RDX: 0000000000000000 RSI: ffff88802e27dbe8 RDI: ffff888034c90190
[   46.555998][ T8464] RBP: ffffffff89c2be40 R08: ffffffff81c397ee R09: fffffbfff1eabc57
[   46.563977][ T8464] R10: fffffbfff1eabc57 R11: 0000000000000000 R12: 0000000000000000
[   46.571990][ T8464] R13: ffff888034c90190 R14: 1ffff11005c4fb7d R15: ffff88802e27dbe8
[   46.579939][ T8464] FS:  00000000023f0880(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   46.588859][ T8464] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.595480][ T8464] CR2: ffffffffffffffd6 CR3: 0000000012d42000 CR4: 00000000001506f0
[   46.603537][ T8464] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.611549][ T8464] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.619501][ T8464] Kernel panic - not syncing: Fatal exception
[   46.626101][ T8464] Kernel Offset: disabled
[   46.630405][ T8464] Rebooting in 86400 seconds..