[ 72.504684][ T27] audit: type=1800 audit(1578523404.872:25): pid=9633 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 72.526333][ T27] audit: type=1800 audit(1578523404.872:26): pid=9633 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 72.577976][ T27] audit: type=1800 audit(1578523404.872:27): pid=9633 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 73.112189][ T9698] sshd (9698) used greatest stack depth: 22920 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.81' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 83.172564][ T9786] kasan: CONFIG_KASAN_INLINE enabled [ 83.178024][ T9786] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 83.186143][ T9786] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 83.193076][ T9786] CPU: 0 PID: 9786 Comm: syz-executor217 Not tainted 5.5.0-rc5-syzkaller #0 [ 83.201728][ T9786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.211778][ T9786] RIP: 0010:hash_ipportip6_uadt+0x226/0xa00 [ 83.217667][ T9786] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 14 07 00 00 4c 89 ea 45 8b 76 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d9 [ 83.237257][ T9786] RSP: 0018:ffffc90001ac7160 EFLAGS: 00010246 [ 83.243302][ T9786] RAX: dffffc0000000000 RBX: ffffc90001ac7310 RCX: 0000000000000000 [ 83.251252][ T9786] RDX: 0000000000000000 RSI: ffffffff867d0153 RDI: ffff8880a495f430 [ 83.259202][ T9786] RBP: ffffc90001ac72a8 R08: 0000000000000000 R09: 0000000000000000 [ 83.267154][ T9786] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a808c000 [ 83.275106][ T9786] R13: 0000000000000000 R14: 0000000004000000 R15: 0000000000000002 [ 83.283074][ T9786] FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:0000000008bf9840 [ 83.292019][ T9786] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 83.298711][ T9786] CR2: 0000000020000180 CR3: 0000000093d22000 CR4: 00000000001406f0 [ 83.306672][ T9786] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.314635][ T9786] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.322592][ T9786] Call Trace: [ 83.325868][ T9786] ? hash_ipportip4_test+0x6c0/0x6c0 [ 83.331140][ T9786] ? hash_ipportip6_same_set+0x1a0/0x1a0 [ 83.336761][ T9786] ? ip_set_utest+0x4aa/0x890 [ 83.341432][ T9786] ? __kasan_check_read+0x11/0x20 [ 83.346441][ T9786] ip_set_utest+0x55b/0x890 [ 83.350926][ T9786] ? ip_set_put_byindex+0x490/0x490 [ 83.356127][ T9786] ? __mutex_lock+0x458/0x13c0 [ 83.360902][ T9786] ? ip_set_put_byindex+0x490/0x490 [ 83.366106][ T9786] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 83.371053][ T9786] ? nfnetlink_bind+0x2c0/0x2c0 [ 83.375889][ T9786] ? __kasan_check_read+0x11/0x20 [ 83.380943][ T9786] ? __lock_acquire+0x8a0/0x4a00 [ 83.385862][ T9786] ? save_stack+0x5c/0x90 [ 83.390181][ T9786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.396400][ T9786] ? apparmor_capable+0x497/0x900 [ 83.401422][ T9786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.407654][ T9786] ? __kasan_check_read+0x11/0x20 [ 83.412672][ T9786] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 83.418115][ T9786] netlink_rcv_skb+0x177/0x450 [ 83.422863][ T9786] ? nfnetlink_bind+0x2c0/0x2c0 [ 83.427702][ T9786] ? netlink_ack+0xb50/0xb50 [ 83.432277][ T9786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.438504][ T9786] ? ns_capable_common+0x93/0x100 [ 83.443510][ T9786] ? ns_capable+0x20/0x30 [ 83.447844][ T9786] ? __netlink_ns_capable+0x104/0x140 [ 83.453233][ T9786] nfnetlink_rcv+0x1ba/0x460 [ 83.457832][ T9786] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 83.463282][ T9786] ? netlink_deliver_tap+0x24a/0xbe0 [ 83.468564][ T9786] ? __kasan_check_write+0x14/0x20 [ 83.473684][ T9786] netlink_unicast+0x58c/0x7d0 [ 83.478435][ T9786] ? netlink_attachskb+0x870/0x870 [ 83.483544][ T9786] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 83.489263][ T9786] ? __check_object_size+0x3d/0x437 [ 83.494446][ T9786] netlink_sendmsg+0x91c/0xea0 [ 83.499194][ T9786] ? netlink_unicast+0x7d0/0x7d0 [ 83.504118][ T9786] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 83.509650][ T9786] ? apparmor_socket_sendmsg+0x2a/0x30 [ 83.515091][ T9786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.521326][ T9786] ? security_socket_sendmsg+0x8d/0xc0 [ 83.526768][ T9786] ? netlink_unicast+0x7d0/0x7d0 [ 83.531683][ T9786] sock_sendmsg+0xd7/0x130 [ 83.536098][ T9786] ____sys_sendmsg+0x753/0x880 [ 83.540855][ T9786] ? kernel_sendmsg+0x50/0x50 [ 83.545555][ T9786] ? _raw_spin_unlock+0x28/0x40 [ 83.550405][ T9786] ? do_huge_pmd_wp_page+0x53a/0x21c0 [ 83.556058][ T9786] ___sys_sendmsg+0x100/0x170 [ 83.560752][ T9786] ? sendmsg_copy_msghdr+0x70/0x70 [ 83.565879][ T9786] ? fault_around_bytes_set+0xa0/0xa0 [ 83.571245][ T9786] ? __do_page_fault+0x56a/0xd80 [ 83.576243][ T9786] ? find_held_lock+0x35/0x130 [ 83.581043][ T9786] ? __do_page_fault+0x56a/0xd80 [ 83.585973][ T9786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.592199][ T9786] ? __fget_light+0x1a9/0x230 [ 83.596857][ T9786] ? __fdget+0x1b/0x20 [ 83.600907][ T9786] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 83.607131][ T9786] __sys_sendmsg+0x105/0x1d0 [ 83.611727][ T9786] ? __sys_sendmsg_sock+0xc0/0xc0 [ 83.616741][ T9786] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 83.622192][ T9786] ? do_fast_syscall_32+0xd1/0xe16 [ 83.627281][ T9786] ? entry_SYSENTER_compat+0x70/0x7f [ 83.632564][ T9786] ? do_fast_syscall_32+0xd1/0xe16 [ 83.637662][ T9786] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 83.643101][ T9786] do_fast_syscall_32+0x27b/0xe16 [ 83.648107][ T9786] entry_SYSENTER_compat+0x70/0x7f [ 83.653194][ T9786] RIP: 0023:0xf7ffca39 [ 83.657258][ T9786] Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 83.676842][ T9786] RSP: 002b:00000000ffd144ec EFLAGS: 00000202 ORIG_RAX: 0000000000000172 [ 83.685246][ T9786] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000180 [ 83.693197][ T9786] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000ffd14604 [ 83.701147][ T9786] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 83.709120][ T9786] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 83.717078][ T9786] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 83.725128][ T9786] Modules linked in: [ 83.729088][ T9786] ---[ end trace 9e51a1485daf2877 ]--- [ 83.734572][ T9786] RIP: 0010:hash_ipportip6_uadt+0x226/0xa00 [ 83.740483][ T9786] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 14 07 00 00 4c 89 ea 45 8b 76 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d9 [ 83.760107][ T9786] RSP: 0018:ffffc90001ac7160 EFLAGS: 00010246 [ 83.766185][ T9786] RAX: dffffc0000000000 RBX: ffffc90001ac7310 RCX: 0000000000000000 [ 83.774160][ T9786] RDX: 0000000000000000 RSI: ffffffff867d0153 RDI: ffff8880a495f430 [ 83.782184][ T9786] RBP: ffffc90001ac72a8 R08: 0000000000000000 R09: 0000000000000000 [ 83.790179][ T9786] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a808c000 [ 83.798162][ T9786] R13: 0000000000000000 R14: 0000000004000000 R15: 0000000000000002 [ 83.806143][ T9786] FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:0000000008bf9840 [ 83.815051][ T9786] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 83.821664][ T9786] CR2: 0000000020000180 CR3: 0000000093d22000 CR4: 00000000001406f0 [ 83.829649][ T9786] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.837630][ T9786] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.846577][ T9786] Kernel panic - not syncing: Fatal exception in interrupt [ 83.855129][ T9786] Kernel Offset: disabled [ 83.859512][ T9786] Rebooting in 86400 seconds..