[ 34.143301] audit: type=1800 audit(1555564364.830:33): pid=6942 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 34.168203] audit: type=1800 audit(1555564364.830:34): pid=6942 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 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 38.173436] random: sshd: uninitialized urandom read (32 bytes read) [ 38.519509] audit: type=1400 audit(1555564369.200:35): avc: denied { map } for pid=7115 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 [ 38.567237] random: sshd: uninitialized urandom read (32 bytes read) [ 39.128477] random: sshd: uninitialized urandom read (32 bytes read) [ 39.315693] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.62' (ECDSA) to the list of known hosts. [ 44.896189] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 45.015517] audit: type=1400 audit(1555564375.700:36): avc: denied { map } for pid=7127 comm="syz-executor139" path="/root/syz-executor139287342" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 45.089564] hrtimer: interrupt took 22090 ns [ 45.107644] audit: type=1400 audit(1555564375.790:37): avc: denied { create } for pid=7128 comm="syz-executor139" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 executing program executing program [ 45.132199] audit: type=1400 audit(1555564375.790:38): avc: denied { ioctl } for pid=7128 comm="syz-executor139" path="socket:[26289]" dev="sockfs" ino=26289 ioctlcmd=0x8990 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 executing program [ 45.225983] ------------[ cut here ]------------ [ 45.230879] kernel BUG at ./include/linux/scatterlist.h:124! [ 45.238721] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 45.244074] Modules linked in: [ 45.247250] CPU: 0 PID: 7135 Comm: syz-executor139 Not tainted 4.14.112 #2 [ 45.254239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.263572] task: ffff888093b02100 task.stack: ffff888099170000 [ 45.269725] RIP: 0010:gcmaes_decrypt.constprop.0+0x91c/0xd30 [ 45.275624] RSP: 0018:ffff8880991777d8 EFLAGS: 00010297 [ 45.280973] RAX: ffff888093b02100 RBX: ffff88808cfb9148 RCX: 0000000087654321 [ 45.288226] RDX: 0000000000000000 RSI: 1ffff110119f71ba RDI: ffff88808cfb8de4 [ 45.295478] RBP: ffff8880991778b0 R08: ffff88808cfb9720 R09: ffffed101322ef1e [ 45.302728] R10: ffffed101322ef1d R11: ffff8880991778eb R12: ffffea00025a0f82 [ 45.309977] R13: ffff88808cfb917c R14: 0000000000000010 R15: ffff88808ba3f700 [ 45.317230] FS: 00000000014db880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 [ 45.325520] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.331377] CR2: 0000000000000000 CR3: 000000008cdce000 CR4: 00000000001406f0 [ 45.338733] Call Trace: [ 45.341310] ? generic_gcmaes_encrypt+0x130/0x130 [ 45.346133] ? sock_kfree_s+0x36/0x50 [ 45.349916] generic_gcmaes_decrypt+0xf4/0x130 [ 45.354481] ? helper_rfc4106_decrypt+0x320/0x320 [ 45.359461] gcmaes_wrapper_decrypt+0x168/0x200 [ 45.364122] aead_recvmsg+0x827/0x1da0 [ 45.367992] ? aead_release+0x50/0x50 [ 45.371779] ? aead_release+0x50/0x50 [ 45.375567] sock_recvmsg_nosec+0x8c/0xb0 [ 45.379710] ? __sock_tx_timestamp+0x90/0x90 [ 45.384097] ___sys_recvmsg+0x221/0x4d0 [ 45.388051] ? ___sys_sendmsg+0x850/0x850 [ 45.392181] ? trace_hardirqs_on_caller+0x400/0x590 [ 45.397210] ? __sys_recvmmsg+0x2b4/0x6b0 [ 45.401351] ? find_held_lock+0x35/0x130 [ 45.405393] ? __sys_recvmmsg+0x2b4/0x6b0 [ 45.409531] __sys_recvmmsg+0x226/0x6b0 [ 45.413504] ? SyS_recvmsg+0x50/0x50 [ 45.417356] ? __might_fault+0x110/0x1d0 [ 45.421404] ? lock_downgrade+0x6e0/0x6e0 [ 45.425537] ? kasan_check_write+0x14/0x20 [ 45.429759] ? _copy_from_user+0x99/0x110 [ 45.433894] SyS_recvmmsg+0xb0/0x140 [ 45.437596] ? __sys_recvmmsg+0x6b0/0x6b0 [ 45.441739] ? do_syscall_64+0x53/0x630 [ 45.445697] ? __sys_recvmmsg+0x6b0/0x6b0 [ 45.449826] do_syscall_64+0x1eb/0x630 [ 45.453707] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.458540] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 45.463813] RIP: 0033:0x446189 [ 45.466983] RSP: 002b:00007ffe191d14b8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b [ 45.474757] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000446189 [ 45.482004] RDX: 0000000000000871 RSI: 0000000020002480 RDI: 000000000000000a [ 45.489500] RBP: 0000000000006f6c R08: 00000000200001c0 R09: 0000000000000000 [ 45.496756] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004033d0 [ 45.504011] R13: 0000000000403460 R14: 0000000000000000 R15: 0000000000000000 [ 45.511266] Code: 0f 0b e8 98 09 2e 00 0f 0b e8 91 09 2e 00 0f 0b e8 8a 09 2e 00 0f 0b e8 83 09 2e 00 e8 ea 74 d1 ff e9 63 ff ff ff e8 74 09 2e 00 <0f> 0b e8 6d 09 2e 00 0f 0b 4c 89 85 58 ff ff ff e8 5f 09 2e 00 [ 45.530356] RIP: gcmaes_decrypt.constprop.0+0x91c/0xd30 RSP: ffff8880991777d8 [ 45.538284] ---[ end trace 6877b8ec83cb57fc ]--- [ 45.543126] Kernel panic - not syncing: Fatal exception [ 45.549218] Kernel Offset: disabled [ 45.552833] Rebooting in 86400 seconds..