[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ 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... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 64.046638][ T6860] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 64.056430][ T6860] REISERFS (device loop0): using ordered data mode [ 64.064613][ T6860] reiserfs: using flush barriers [ 64.071072][ T6860] REISERFS (device loop0): journal params: device loop0, size 15748, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 64.092789][ T6860] REISERFS (device loop0): checking transaction log (loop0) [ 66.135034][ T6860] REISERFS (device loop0): Using r5 hash to sort names [ 66.143554][ T6860] general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN [ 66.155256][ T6860] KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] [ 66.163759][ T6860] CPU: 0 PID: 6860 Comm: syz-executor254 Not tainted 5.9.0-rc8-syzkaller #0 [ 66.172405][ T6860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.182448][ T6860] RIP: 0010:reiserfs_security_init+0x285/0x4d0 [ 66.188591][ T6860] Code: 48 c1 ea 03 80 3c 02 00 0f 85 2b 02 00 00 4d 8b ad a0 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 23 02 00 00 49 83 7d 68 00 0f 84 62 01 00 00 48 [ 66.208265][ T6860] RSP: 0018:ffffc900055f7980 EFLAGS: 00010202 [ 66.214319][ T6860] RAX: dffffc0000000000 RBX: 0000000000000036 RCX: 000000000000006c [ 66.222275][ T6860] RDX: 000000000000000d RSI: ffffffff8200b723 RDI: 0000000000000068 [ 66.230329][ T6860] RBP: ffff88807d81a1d0 R08: ffffc900055f7a10 R09: ffffc900055f7a18 [ 66.238280][ T6860] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000005fa [ 66.246237][ T6860] R13: 0000000000000000 R14: ffff88809301c000 R15: 0000000000000000 [ 66.254230][ T6860] FS: 000000000200d880(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 66.263159][ T6860] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.269726][ T6860] CR2: 00007fe0b1e5a000 CR3: 000000008fe40000 CR4: 00000000001506f0 [ 66.277798][ T6860] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.285754][ T6860] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.293712][ T6860] Call Trace: [ 66.297002][ T6860] reiserfs_mkdir+0x2c9/0x980 [ 66.301660][ T6860] ? reiserfs_mknod+0x700/0x700 [ 66.306496][ T6860] ? down_write+0xdb/0x150 [ 66.310907][ T6860] ? down_write_killable+0x170/0x170 [ 66.316192][ T6860] ? down_write_killable+0x170/0x170 [ 66.321458][ T6860] reiserfs_xattr_init+0x4de/0xb52 [ 66.326549][ T6860] reiserfs_fill_super+0x215d/0x2df3 [ 66.331816][ T6860] ? reiserfs_remount+0x1580/0x1580 [ 66.337066][ T6860] ? lock_downgrade+0x830/0x830 [ 66.341896][ T6860] ? snprintf+0xbb/0xf0 [ 66.346038][ T6860] ? wait_for_completion+0x260/0x260 [ 66.351318][ T6860] ? set_blocksize+0x1c1/0x400 [ 66.356065][ T6860] mount_bdev+0x32e/0x3f0 [ 66.360385][ T6860] ? reiserfs_remount+0x1580/0x1580 [ 66.365561][ T6860] ? reiserfs_kill_sb+0x1e0/0x1e0 [ 66.370578][ T6860] legacy_get_tree+0x105/0x220 [ 66.375319][ T6860] vfs_get_tree+0x89/0x2f0 [ 66.379727][ T6860] path_mount+0x1387/0x20a0 [ 66.384212][ T6860] ? strncpy_from_user+0x2bf/0x3e0 [ 66.389319][ T6860] ? copy_mount_string+0x40/0x40 [ 66.394262][ T6860] ? getname_flags.part.0+0x1dd/0x4f0 [ 66.399623][ T6860] __x64_sys_mount+0x27f/0x300 [ 66.404362][ T6860] ? copy_mnt_ns+0xa60/0xa60 [ 66.408931][ T6860] ? check_preemption_disabled+0x50/0x130 [ 66.414649][ T6860] ? syscall_enter_from_user_mode+0x1d/0x60 [ 66.420541][ T6860] do_syscall_64+0x2d/0x70 [ 66.424959][ T6860] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.430824][ T6860] RIP: 0033:0x447dba [ 66.434712][ T6860] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d a3 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 5a a3 fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 66.455167][ T6860] RSP: 002b:00007ffc731a72b8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 66.463583][ T6860] RAX: ffffffffffffffda RBX: 00007ffc731a7310 RCX: 0000000000447dba [ 66.471620][ T6860] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc731a72d0 [ 66.479567][ T6860] RBP: 00007ffc731a72d0 R08: 00007ffc731a7310 R09: 0000000000000000 [ 66.487514][ T6860] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000007 [ 66.495463][ T6860] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 66.503423][ T6860] Modules linked in: [ 66.519417][ T6860] ---[ end trace b0c687a772212972 ]--- [ 66.524975][ T6860] RIP: 0010:reiserfs_security_init+0x285/0x4d0 [ 66.531119][ T6860] Code: 48 c1 ea 03 80 3c 02 00 0f 85 2b 02 00 00 4d 8b ad a0 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 23 02 00 00 49 83 7d 68 00 0f 84 62 01 00 00 48 [ 66.551895][ T6860] RSP: 0018:ffffc900055f7980 EFLAGS: 00010202 [ 66.558777][ T6860] RAX: dffffc0000000000 RBX: 0000000000000036 RCX: 000000000000006c [ 66.566940][ T6860] RDX: 000000000000000d RSI: ffffffff8200b723 RDI: 0000000000000068 [ 66.574983][ T6860] RBP: ffff88807d81a1d0 R08: ffffc900055f7a10 R09: ffffc900055f7a18 [ 66.582980][ T6860] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000005fa [ 66.590942][ T6860] R13: 0000000000000000 R14: ffff88809301c000 R15: 0000000000000000 [ 66.598995][ T6860] FS: 000000000200d880(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 [ 66.607986][ T6860] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.614608][ T6860] CR2: 00007f8ac003d018 CR3: 000000008fe40000 CR4: 00000000001506e0 [ 66.622634][ T6860] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.630595][ T6860] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.638642][ T6860] Kernel panic - not syncing: Fatal exception [ 66.645881][ T6860] Kernel Offset: disabled [ 66.650204][ T6860] Rebooting in 86400 seconds..