[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ 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. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.150' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.684236][ T8372] loop0: detected capacity change from 8511 to 0 [ 56.695884][ T8372] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 56.707015][ T8372] REISERFS (device loop0): using ordered data mode [ 56.714176][ T8372] reiserfs: using flush barriers [ 56.720373][ T8372] 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 [ 56.737842][ T8372] REISERFS (device loop0): checking transaction log (loop0) [ 56.799486][ T8372] REISERFS (device loop0): Using rupasov hash to sort names [ 56.808446][ T8372] general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN [ 56.822521][ T8372] KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] [ 56.830933][ T8372] CPU: 0 PID: 8372 Comm: syz-executor538 Not tainted 5.11.0-syzkaller #0 [ 56.839322][ T8372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.849369][ T8372] RIP: 0010:reiserfs_security_init+0x28f/0x530 [ 56.855525][ T8372] Code: 48 c1 e9 03 80 3c 11 00 0f 85 91 02 00 00 49 8b 87 a0 05 00 00 48 ba 00 00 00 00 00 fc ff df 48 8d 78 68 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 4d 02 00 00 48 83 78 68 00 0f 84 be 01 00 00 48 [ 56.875370][ T8372] RSP: 0018:ffffc9000161f970 EFLAGS: 00010212 [ 56.881425][ T8372] RAX: 0000000000000000 RBX: 0000000000000036 RCX: 000000000000000d [ 56.889386][ T8372] RDX: dffffc0000000000 RSI: 000000000000006c RDI: 0000000000000068 [ 56.897335][ T8372] RBP: ffff8880322e87a0 R08: 0000000000000000 R09: ffffc9000161fa18 [ 56.905458][ T8372] R10: ffffffff82007170 R11: 0000000000000000 R12: 000000000000057d [ 56.913424][ T8372] R13: ffff8880156f8000 R14: 0000000000000000 R15: ffff888022e30000 [ 56.921565][ T8372] FS: 0000000001ef8300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 56.930596][ T8372] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.937159][ T8372] CR2: 00007fffe488ef68 CR3: 0000000013e1d000 CR4: 0000000000350ef0 [ 56.945109][ T8372] Call Trace: [ 56.948372][ T8372] reiserfs_mkdir+0x2c9/0x980 [ 56.953317][ T8372] ? reiserfs_mknod+0x700/0x700 [ 56.958150][ T8372] ? down_write+0xe0/0x150 [ 56.962558][ T8372] ? down_write_killable_nested+0x180/0x180 [ 56.968431][ T8372] ? down_write_killable_nested+0x180/0x180 [ 56.974392][ T8372] reiserfs_xattr_init+0x4de/0xb60 [ 56.979483][ T8372] reiserfs_fill_super+0x2166/0x2e00 [ 56.984873][ T8372] ? reiserfs_remount+0x1580/0x1580 [ 56.990135][ T8372] ? lock_downgrade+0x6d0/0x6d0 [ 56.994965][ T8372] ? snprintf+0xbb/0xf0 [ 56.999114][ T8372] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 57.004813][ T8372] ? set_blocksize+0x1c1/0x400 [ 57.009558][ T8372] mount_bdev+0x34d/0x410 [ 57.013870][ T8372] ? reiserfs_remount+0x1580/0x1580 [ 57.019394][ T8372] ? reiserfs_kill_sb+0x1e0/0x1e0 [ 57.024393][ T8372] legacy_get_tree+0x105/0x220 [ 57.029137][ T8372] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 57.035358][ T8372] vfs_get_tree+0x89/0x2f0 [ 57.039783][ T8372] path_mount+0x13ad/0x20c0 [ 57.044291][ T8372] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 57.050527][ T8372] ? strncpy_from_user+0x2a0/0x3e0 [ 57.055624][ T8372] ? finish_automount+0xac0/0xac0 [ 57.060659][ T8372] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 57.066968][ T8372] ? getname_flags.part.0+0x1dd/0x4f0 [ 57.072327][ T8372] __x64_sys_mount+0x27f/0x300 [ 57.077072][ T8372] ? copy_mnt_ns+0xae0/0xae0 [ 57.081730][ T8372] ? syscall_enter_from_user_mode+0x1d/0x50 [ 57.087622][ T8372] do_syscall_64+0x2d/0x70 [ 57.092024][ T8372] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 57.097900][ T8372] RIP: 0033:0x44518a [ 57.101878][ T8372] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 57.122937][ T8372] RSP: 002b:00007fff8cc5f788 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 57.131428][ T8372] RAX: ffffffffffffffda RBX: 00007fff8cc5f7e0 RCX: 000000000044518a [ 57.139389][ T8372] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff8cc5f7a0 [ 57.147353][ T8372] RBP: 00007fff8cc5f7a0 R08: 00007fff8cc5f7e0 R09: 0000000000000000 [ 57.155663][ T8372] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000020000290 [ 57.163626][ T8372] R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000006 [ 57.171593][ T8372] Modules linked in: [ 57.176081][ T8372] ---[ end trace 242d271a8eb82b35 ]--- [ 57.181579][ T8372] RIP: 0010:reiserfs_security_init+0x28f/0x530 [ 57.187941][ T8372] Code: 48 c1 e9 03 80 3c 11 00 0f 85 91 02 00 00 49 8b 87 a0 05 00 00 48 ba 00 00 00 00 00 fc ff df 48 8d 78 68 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 4d 02 00 00 48 83 78 68 00 0f 84 be 01 00 00 48 [ 57.208155][ T8372] RSP: 0018:ffffc9000161f970 EFLAGS: 00010212 [ 57.214321][ T8372] RAX: 0000000000000000 RBX: 0000000000000036 RCX: 000000000000000d [ 57.222362][ T8372] RDX: dffffc0000000000 RSI: 000000000000006c RDI: 0000000000000068 [ 57.230354][ T8372] RBP: ffff8880322e87a0 R08: 0000000000000000 R09: ffffc9000161fa18 [ 57.238398][ T8372] R10: ffffffff82007170 R11: 0000000000000000 R12: 000000000000057d [ 57.246443][ T8372] R13: ffff8880156f8000 R14: 0000000000000000 R15: ffff888022e30000 [ 57.254527][ T8372] FS: 0000000001ef8300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 57.263777][ T8372] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.270385][ T8372] CR2: 00007fffe488ef68 CR3: 0000000013e1d000 CR4: 0000000000350ef0 [ 57.278452][ T8372] Kernel panic - not syncing: Fatal exception [ 57.288452][ T8372] Kernel Offset: disabled [ 57.292788][ T8372] Rebooting in 86400 seconds..