Starting Update UTMP about System Runlevel Changes... [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ 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 '10.128.10.0' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.522432] audit: type=1400 audit(1602090342.448:8): avc: denied { execmem } for pid=6499 comm="syz-executor982" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 42.551901] REISERFS (device loop0): found reiserfs format "3.6" with standard journal [ 42.561637] REISERFS (device loop0): using ordered data mode [ 42.568865] reiserfs: using flush barriers [ 42.575096] REISERFS (device loop0): journal params: device loop0, size 8195, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 42.593252] REISERFS (device loop0): checking transaction log (loop0) [ 43.385041] REISERFS (device loop0): Using rupasov hash to sort names [ 43.392631] ------------[ cut here ]------------ [ 43.398027] WARNING: CPU: 1 PID: 6500 at fs/inode.c:979 unlock_new_inode.cold+0x11/0x3f [ 43.406231] Kernel panic - not syncing: panic_on_warn set ... [ 43.406231] [ 43.413632] CPU: 1 PID: 6500 Comm: syz-executor982 Not tainted 4.19.150-syzkaller #0 [ 43.421505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.430957] Call Trace: [ 43.433565] dump_stack+0x22c/0x33e [ 43.437187] panic+0x2ac/0x565 [ 43.440406] ? __warn_printk+0xf3/0xf3 [ 43.444291] ? unlock_new_inode.cold+0x11/0x3f [ 43.448892] ? __probe_kernel_read+0x130/0x1b0 [ 43.453464] ? __warn.cold+0x5/0x5a [ 43.457079] ? __warn+0xe4/0x200 [ 43.460434] ? unlock_new_inode.cold+0x11/0x3f [ 43.465006] __warn.cold+0x20/0x5a [ 43.468559] ? unlock_new_inode.cold+0x11/0x3f [ 43.473152] report_bug+0x262/0x2b0 [ 43.476803] do_error_trap+0x1e1/0x330 [ 43.480681] ? math_error+0x320/0x320 [ 43.484471] ? __irq_work_queue_local+0x155/0x200 [ 43.489312] ? irq_work_queue+0x29/0x80 [ 43.493276] ? error_entry+0x72/0xd0 [ 43.496986] ? trace_hardirqs_off_caller+0x6e/0x210 [ 43.502016] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.506852] invalid_op+0x14/0x20 [ 43.510294] RIP: 0010:unlock_new_inode.cold+0x11/0x3f [ 43.515477] Code: ee e8 21 d7 b4 ff 48 c7 c7 80 0f 16 88 e8 c4 52 9e ff 0f 0b e9 a7 76 ff ff e8 09 d7 b4 ff 48 c7 c7 80 0f 16 88 e8 ac 52 9e ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 80 3c 02 00 [ 43.534379] RSP: 0018:ffff88809553f600 EFLAGS: 00010282 [ 43.539730] RAX: 0000000000000024 RBX: ffff88807fd581a8 RCX: 0000000000000000 [ 43.546989] RDX: 0000000000000000 RSI: ffffffff815b623f RDI: ffffed1012aa7eb2 [ 43.554247] RBP: 0000000000000000 R08: 0000000000000024 R09: 0000000000000000 [ 43.561519] R10: 0000000000000005 R11: 0000000000000000 R12: ffff88807fd58278 [ 43.568797] R13: ffff88807fd58230 R14: 0000000000000000 R15: 00000000fffffff4 [ 43.576079] ? vprintk_func+0x7f/0x224 [ 43.579970] reiserfs_new_inode+0x3b8/0x2150 [ 43.584373] ? find_held_lock+0x58/0x110 [ 43.588439] ? reiserfs_fh_to_parent+0x1b0/0x1b0 [ 43.593189] ? ww_mutex_unlock+0x2f0/0x2f0 [ 43.597432] ? do_journal_begin_r+0x298/0x10d0 [ 43.602021] ? ww_mutex_unlock+0x2f0/0x2f0 [ 43.606275] ? __mutex_unlock_slowpath+0xea/0x660 [ 43.611126] ? __mutex_add_waiter+0x160/0x160 [ 43.615959] ? __mutex_add_waiter+0x160/0x160 [ 43.620517] ? do_journal_begin_r+0xd24/0x10d0 [ 43.625109] ? security_old_inode_init_security+0xf4/0x130 [ 43.630732] reiserfs_mkdir+0x4ad/0x980 [ 43.634725] ? reiserfs_mknod+0x700/0x700 [ 43.638892] reiserfs_xattr_init+0x406/0xae0 [ 43.643295] reiserfs_fill_super+0x222a/0x2e60 [ 43.647875] ? reiserfs_remount+0x1640/0x1640 [ 43.652388] ? lock_downgrade+0x750/0x750 [ 43.656529] ? snprintf+0xbb/0xf0 [ 43.660013] ? __mutex_add_waiter+0x160/0x160 [ 43.664558] mount_bdev+0x2fc/0x3b0 [ 43.668183] ? reiserfs_remount+0x1640/0x1640 [ 43.672689] mount_fs+0xa3/0x318 [ 43.676051] vfs_kern_mount.part.0+0x68/0x470 [ 43.680537] do_mount+0x51c/0x2f10 [ 43.684092] ? __do_page_fault+0x1ca/0xe00 [ 43.688313] ? copy_mount_string+0x40/0x40 [ 43.692555] ? copy_mount_options+0x1c3/0x370 [ 43.697038] ? copy_mount_options+0x1d0/0x370 [ 43.701537] ? memset+0x20/0x40 [ 43.704827] ? copy_mount_options+0x261/0x370 [ 43.709328] ksys_mount+0xcf/0x130 [ 43.712863] __x64_sys_mount+0xba/0x150 [ 43.716851] ? lockdep_hardirqs_on+0x3c1/0x5e0 [ 43.721439] do_syscall_64+0xf9/0x670 [ 43.725231] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.730409] RIP: 0033:0x447daa [ 43.733599] 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 [ 43.752521] RSP: 002b:00007fffa865b558 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 43.760234] RAX: ffffffffffffffda RBX: 00007fffa865b5b0 RCX: 0000000000447daa [ 43.767505] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fffa865b570 [ 43.774760] RBP: 00007fffa865b570 R08: 00007fffa865b5b0 R09: 0000000000000000 [ 43.782036] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000007 [ 43.789290] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 43.798703] Kernel Offset: disabled [ 43.802467] Rebooting in 86400 seconds..