[ 32.694125] audit: type=1800 audit(1555567149.976:33): pid=6867 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 [ 32.721928] audit: type=1800 audit(1555567149.976:34): pid=6867 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: [ 35.676998] random: sshd: uninitialized urandom read (32 bytes read) [ 35.977567] audit: type=1400 audit(1555567153.256:35): avc: denied { map } for pid=7044 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 [ 36.027805] random: sshd: uninitialized urandom read (32 bytes read) [ 36.623735] random: sshd: uninitialized urandom read (32 bytes read) [ 36.820493] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.108' (ECDSA) to the list of known hosts. [ 42.516161] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 42.643816] audit: type=1400 audit(1555567159.926:36): avc: denied { map } for pid=7056 comm="syz-executor608" path="/root/syz-executor608215424" 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 [ 42.724529] ------------[ cut here ]------------ [ 42.729403] kernel BUG at ./include/linux/scatterlist.h:124! [ 42.736219] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 42.741573] Modules linked in: [ 42.744755] CPU: 1 PID: 7081 Comm: syz-executor608 Not tainted 4.14.112 #2 [ 42.751746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.761081] task: ffff88807d75c700 task.stack: ffff888080920000 [ 42.767125] RIP: 0010:gcmaes_decrypt.constprop.0+0x91c/0xd30 [ 42.772899] RSP: 0018:ffff8880809277c8 EFLAGS: 00010297 [ 42.778242] RAX: ffff88807d75c700 RBX: ffff8880914e3148 RCX: 0000000087654321 [ 42.785498] RDX: 0000000000000000 RSI: 1ffff1101229c5ba RDI: ffff8880914e2de4 [ 42.792749] RBP: ffff8880809278a0 R08: ffff8880914e3720 R09: ffffed1010124f1c [ 42.800012] R10: ffffed1010124f1b R11: ffff8880809278db R12: ffffea00024a8d42 [ 42.808023] R13: ffff8880914e317c R14: 0000000000000010 R15: ffff8880a5268a00 [ 42.815283] FS: 00000000011a9880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 [ 42.823500] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.829368] CR2: 0000000020002640 CR3: 00000000a8ac6000 CR4: 00000000001406e0 [ 42.836648] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.843902] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.851150] Call Trace: [ 42.853726] ? generic_gcmaes_encrypt+0x130/0x130 [ 42.858568] generic_gcmaes_decrypt+0xf4/0x130 [ 42.863130] ? helper_rfc4106_decrypt+0x320/0x320 [ 42.867954] gcmaes_wrapper_decrypt+0x168/0x200 [ 42.872614] aead_recvmsg+0x827/0x1da0 [ 42.876482] ? aead_release+0x50/0x50 [ 42.880282] ? selinux_socket_recvmsg+0x36/0x40 [ 42.884931] ? security_socket_recvmsg+0x97/0xc0 [ 42.889672] ? aead_release+0x50/0x50 [ 42.893472] sock_recvmsg+0xc8/0x110 [ 42.897190] ? __sock_recv_ts_and_drops+0x470/0x470 [ 42.902193] ___sys_recvmsg+0x221/0x4d0 [ 42.906178] ? ___sys_sendmsg+0x850/0x850 [ 42.910362] ? __local_bh_enable_ip+0x99/0x1a0 [ 42.915144] ? _raw_spin_unlock_bh+0x31/0x40 [ 42.919545] ? release_sock+0x14c/0x1c0 [ 42.923728] ? af_alg_sendmsg+0xace/0x1093 [ 42.927955] ? af_alg_sendpage+0x8e0/0x8e0 [ 42.932178] ? __fget_light+0x172/0x1f0 [ 42.936129] ? __fdget+0x1b/0x20 [ 42.939477] ? sockfd_lookup_light+0xb4/0x160 [ 42.943954] __sys_recvmmsg+0x226/0x6b0 [ 42.947923] ? SyS_recvmsg+0x50/0x50 [ 42.951622] ? fd_install+0x4d/0x60 [ 42.955335] ? _raw_spin_unlock_bh+0x31/0x40 [ 42.959863] SyS_recvmmsg+0x125/0x140 [ 42.963661] ? __sys_recvmmsg+0x6b0/0x6b0 [ 42.968082] ? do_syscall_64+0x53/0x630 [ 42.972041] ? __sys_recvmmsg+0x6b0/0x6b0 [ 42.976169] do_syscall_64+0x1eb/0x630 [ 42.980070] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.984898] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 42.990071] RIP: 0033:0x4412c9 [ 42.993243] RSP: 002b:00007ffcb0fdb928 EFLAGS: 00000246 ORIG_RAX: 000000000000012b [ 43.000937] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412c9 [ 43.008223] RDX: 0000000000000001 RSI: 0000000020008cc0 RDI: 0000000000000004 [ 43.015483] RBP: 000000000000a6e1 R08: 0000000000000000 R09: 0000000000000000 [ 43.022734] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004020f0 [ 43.030015] R13: 0000000000402180 R14: 0000000000000000 R15: 0000000000000000 [ 43.037367] 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 [ 43.056687] RIP: gcmaes_decrypt.constprop.0+0x91c/0xd30 RSP: ffff8880809277c8 [ 43.064643] ---[ end trace 52916f13b0ddb713 ]--- [ 43.069403] Kernel panic - not syncing: Fatal exception [ 43.075712] Kernel Offset: disabled [ 43.079353] Rebooting in 86400 seconds..