penBSD Secure Sh[ 34.628047] audit: type=1800 audit(1584666045.695:34): pid=7132 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 ell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 36.091065] random: sshd: uninitialized urandom read (32 bytes read) [ 36.329130] audit: type=1400 audit(1584666047.415:35): avc: denied { map } for pid=7305 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 36.379859] random: sshd: uninitialized urandom read (32 bytes read) [ 37.089355] random: sshd: uninitialized urandom read (32 bytes read) [ 37.293356] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.15.204' (ECDSA) to the list of known hosts. [ 42.903546] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 43.023696] audit: type=1400 audit(1584666054.115:36): avc: denied { map } for pid=7317 comm="syz-executor071" path="/root/syz-executor071794052" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 43.027379] kasan: CONFIG_KASAN_INLINE enabled [ 43.054773] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 43.062171] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 43.068387] Modules linked in: [ 43.071557] CPU: 0 PID: 7317 Comm: syz-executor071 Not tainted 4.14.173-syzkaller #0 [ 43.079409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.088772] task: ffff88809fda6100 task.stack: ffff88809b4a8000 [ 43.094811] RIP: 0010:rb_erase+0x29/0x19b0 [ 43.099016] RSP: 0018:ffff88809b4afa68 EFLAGS: 00010292 [ 43.104353] RAX: dffffc0000000000 RBX: ffff888091fb3970 RCX: 1ffff11013695f26 [ 43.111606] RDX: 0000000000000001 RSI: ffffffff8a659de0 RDI: 0000000000000008 [ 43.118871] RBP: 0000000000000000 R08: ffffffff8a0f5c0c R09: 0000000000001bf6 [ 43.126142] R10: ffff88809b4af870 R11: ffff88809fda6100 R12: ffff8880942cf370 [ 43.133390] R13: 0000000000000000 R14: ffff8880942cf3f8 R15: ffffffff8a659de0 [ 43.140638] FS: 0000000002672880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 [ 43.148839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.154696] CR2: 000055b68322e1a0 CR3: 0000000090299000 CR4: 00000000001406f0 [ 43.161944] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.169197] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.176448] Call Trace: [ 43.179014] integrity_inode_free+0x119/0x300 [ 43.183484] security_inode_free+0x14/0x80 [ 43.187696] __destroy_inode+0x1e8/0x4c0 [ 43.191735] destroy_inode+0x49/0x110 [ 43.195511] iput+0x457/0x8d0 [ 43.198594] ? ext4_nfs_commit_metadata+0x2d0/0x2d0 [ 43.203588] ext4_ioctl+0x145f/0x39f0 [ 43.207364] ? avc_ss_reset+0x100/0x100 [ 43.211331] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 43.216495] ? do_sys_open+0x1f9/0x3f0 [ 43.220357] ? do_syscall_64+0x1d5/0x640 [ 43.224394] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.229735] ? find_held_lock+0x2d/0x110 [ 43.233784] ? debug_check_no_obj_freed+0x28e/0x6e4 [ 43.238777] ? lock_acquire+0x170/0x3f0 [ 43.242726] ? lock_downgrade+0x6e0/0x6e0 [ 43.246854] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 43.252031] do_vfs_ioctl+0x75a/0xfe0 [ 43.255810] ? selinux_file_mprotect+0x5c0/0x5c0 [ 43.260551] ? ioctl_preallocate+0x1a0/0x1a0 [ 43.264934] ? rcu_read_lock_sched_held+0x10a/0x130 [ 43.269932] ? kmem_cache_free+0x23a/0x2b0 [ 43.274144] ? putname+0xcd/0x110 [ 43.277592] ? security_file_ioctl+0x76/0xb0 [ 43.281985] ? security_file_ioctl+0x83/0xb0 [ 43.286412] SyS_ioctl+0x7f/0xb0 [ 43.289760] ? do_vfs_ioctl+0xfe0/0xfe0 [ 43.293725] do_syscall_64+0x1d5/0x640 [ 43.297595] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.302792] RIP: 0033:0x440149 [ 43.305966] RSP: 002b:00007fff0cbed048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.313650] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440149 [ 43.320902] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003 [ 43.328148] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 43.335398] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004019d0 [ 43.342681] R13: 0000000000401a60 R14: 0000000000000000 R15: 0000000000000000 [ 43.349931] Code: 00 00 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 f7 41 56 41 55 49 89 fd 48 83 c7 08 48 89 fa 41 54 48 c1 ea 03 55 53 48 83 ec 18 <80> 3c 02 00 0f 85 f5 10 00 00 49 8d 7d 10 4d 8b 75 08 48 b8 00 [ 43.369019] RIP: rb_erase+0x29/0x19b0 RSP: ffff88809b4afa68 [ 43.374753] ---[ end trace da1a86f81af3b5b8 ]--- [ 43.379492] Kernel panic - not syncing: Fatal exception [ 43.385997] Kernel Offset: disabled [ 43.389612] Rebooting in 86400 seconds..