Warning: Permanently added '10.128.10.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.243209] audit: type=1400 audit(1602609570.916:8): avc: denied { execmem } for pid=6359 comm="syz-executor357" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 33.259185] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 33.273565] REISERFS (device loop0): using ordered data mode [ 33.279382] reiserfs: using flush barriers [ 33.286286] 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 [ 33.303780] REISERFS (device loop0): checking transaction log (loop0) [ 33.841450] REISERFS (device loop0): Using rupasov hash to sort names [ 33.848257] REISERFS (device loop0): using 3.5.x disk format [ 33.854477] BUG: unable to handle kernel NULL pointer dereference at (null) [ 33.862462] IP: (null) [ 33.865803] PGD a81b8067 P4D a81b8067 PUD 90da9067 PMD 0 [ 33.871319] Oops: 0010 [#1] PREEMPT SMP KASAN [ 33.875801] Modules linked in: [ 33.878969] CPU: 1 PID: 6359 Comm: syz-executor357 Not tainted 4.14.198-syzkaller #0 [ 33.886939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.896433] task: ffff8880971d44c0 task.stack: ffff888095470000 [ 33.902470] RIP: 0010: (null) [ 33.906495] RSP: 0018:ffff888095477a30 EFLAGS: 00010246 [ 33.911840] RAX: dffffc0000000000 RBX: ffffffff86b6a680 RCX: 0000000000000000 [ 33.919088] RDX: 0000000000000000 RSI: ffff888083a95340 RDI: ffff888082bfc748 [ 33.926335] RBP: ffff888082bfc748 R08: 0000000000000001 R09: 0000000000000002 [ 33.933580] R10: 0000000000000000 R11: ffff8880971d44c0 R12: ffff888083a95340 [ 33.940824] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000076 [ 33.948086] FS: 0000000001f0f880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 33.956287] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.962167] CR2: 0000000000000000 CR3: 000000008b811000 CR4: 00000000001406e0 [ 33.969417] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.978049] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.985308] Call Trace: [ 33.987872] __lookup_hash+0x1bb/0x270 [ 33.991736] ? __inode_permission+0xcd/0x2f0 [ 33.996121] lookup_one_len+0x279/0x3a0 [ 34.000068] ? lookup_one_len_unlocked+0x410/0x410 [ 34.005000] reiserfs_lookup_privroot+0x92/0x270 [ 34.009751] reiserfs_fill_super+0x1ad8/0x28b6 [ 34.014311] ? reiserfs_remount+0x1390/0x1390 [ 34.018800] ? lock_downgrade+0x740/0x740 [ 34.022938] ? snprintf+0xa5/0xd0 [ 34.026376] mount_bdev+0x2b3/0x360 [ 34.029982] ? reiserfs_remount+0x1390/0x1390 [ 34.034472] mount_fs+0x92/0x2a0 [ 34.037831] vfs_kern_mount.part.0+0x5b/0x470 [ 34.042318] do_mount+0xe53/0x2a00 [ 34.045836] ? copy_mount_string+0x40/0x40 [ 34.050055] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.055059] ? copy_mnt_ns+0xa30/0xa30 [ 34.058922] ? copy_mount_options+0x1fa/0x2f0 [ 34.064438] ? copy_mnt_ns+0xa30/0xa30 [ 34.068310] SyS_mount+0xa8/0x120 [ 34.071745] ? copy_mnt_ns+0xa30/0xa30 [ 34.075612] do_syscall_64+0x1d5/0x640 [ 34.079477] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.084642] RIP: 0033:0x44707a [ 34.087808] RSP: 002b:00007ffff47a6398 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 34.095491] RAX: ffffffffffffffda RBX: 00007ffff47a63f0 RCX: 000000000044707a [ 34.102736] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffff47a63b0 [ 34.109998] RBP: 00007ffff47a63b0 R08: 00007ffff47a63f0 R09: 00007fff00000015 [ 34.117245] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000006 [ 34.124490] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 34.131757] Code: Bad RIP value. [ 34.135201] RIP: (null) RSP: ffff888095477a30 [ 34.140534] CR2: 0000000000000000 [ 34.144182] ---[ end trace b7a965fcdd634e5d ]--- [ 34.148936] Kernel panic - not syncing: Fatal exception [ 34.155500] Kernel Offset: disabled [ 34.159138] Rebooting in 86400 seconds..