[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 87.577991][ T27] audit: type=1800 audit(1583375276.046:25): pid=9542 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 87.609053][ T27] audit: type=1800 audit(1583375276.056:26): pid=9542 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 87.659058][ T27] audit: type=1800 audit(1583375276.056:27): pid=9542 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. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.16' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 98.143780][ T9698] IPVS: ftp: loaded support on port[0] = 21 [ 98.185263][ T9700] BUG: unable to handle page fault for address: ffffed1018f2dd87 [ 98.193114][ T9700] #PF: supervisor read access in kernel mode [ 98.199079][ T9700] #PF: error_code(0x0000) - not-present page [ 98.205049][ T9700] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 98.211530][ T9700] Oops: 0000 [#1] PREEMPT SMP KASAN [ 98.216714][ T9700] CPU: 1 PID: 9700 Comm: syz-executor871 Not tainted 5.6.0-rc3-syzkaller #0 [ 98.225385][ T9700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.235433][ T9700] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 98.242172][ T9700] Code: 45 85 e4 0f 84 aa 03 00 00 e8 6e 31 05 fb 48 8b 85 c8 fe ff ff 4e 8d 2c a8 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 0c 84 d2 74 08 4c [ 98.261754][ T9700] RSP: 0018:ffffc9000647f248 EFLAGS: 00010a06 [ 98.267799][ T9700] RAX: dffffc0000000000 RBX: ffff8880a796ec38 RCX: ffffffff867065d4 [ 98.275755][ T9700] RDX: 1ffff11018f2dd87 RSI: ffffffff867065e2 RDI: 0000000000000005 [ 98.283704][ T9700] RBP: ffffc9000647f3b0 R08: ffff88809783e200 R09: ffffc9000647f318 [ 98.291653][ T9700] R10: fffff52000c8fe68 R11: ffffc9000647f347 R12: 0000000000000010 [ 98.299602][ T9700] R13: ffff8880c796ec38 R14: ffff8880a796ec48 R15: ffffc9000647f388 [ 98.307553][ T9700] FS: 0000000001e41880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 98.316454][ T9700] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.323015][ T9700] CR2: ffffed1018f2dd87 CR3: 000000008c918000 CR4: 00000000001406e0 [ 98.330966][ T9700] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.338935][ T9700] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.346890][ T9700] Call Trace: [ 98.350161][ T9700] ? __mutex_lock+0x458/0x13c0 [ 98.354903][ T9700] ? lock_downgrade+0x920/0x920 [ 98.359734][ T9700] ? ethnl_bitmap32_clear+0x390/0x390 [ 98.365262][ T9700] ? mutex_trylock+0x2d0/0x2d0 [ 98.370026][ T9700] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 98.376245][ T9700] ? ethnl_default_notify+0x6b0/0x6b0 [ 98.381613][ T9700] ethnl_update_bitset+0x4d/0x67 [ 98.386565][ T9700] ethnl_set_linkmodes+0x461/0xc30 [ 98.391782][ T9700] ? __kasan_check_read+0x11/0x20 [ 98.396804][ T9700] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 98.403298][ T9700] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.409612][ T9700] ? kernel_text_address+0xe9/0x110 [ 98.415286][ T9700] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 98.420729][ T9700] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.426958][ T9700] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.433189][ T9700] ? security_capable+0x95/0xc0 [ 98.438027][ T9700] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.444335][ T9700] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 98.450904][ T9700] genl_rcv_msg+0x67d/0xea0 [ 98.455395][ T9700] ? genl_rcv_msg+0x67d/0xea0 [ 98.460060][ T9700] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 98.466373][ T9700] ? __kasan_check_read+0x11/0x20 [ 98.471390][ T9700] ? __lock_acquire+0x8a0/0x4a00 [ 98.476311][ T9700] ? find_held_lock+0x35/0x130 [ 98.481056][ T9700] netlink_rcv_skb+0x177/0x450 [ 98.485808][ T9700] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 98.492114][ T9700] ? netlink_ack+0xb50/0xb50 [ 98.496688][ T9700] ? __kasan_check_write+0x14/0x20 [ 98.501785][ T9700] ? netlink_deliver_tap+0x248/0xbf0 [ 98.507078][ T9700] genl_rcv+0x29/0x40 [ 98.511094][ T9700] netlink_unicast+0x59e/0x7e0 [ 98.515847][ T9700] ? netlink_attachskb+0x870/0x870 [ 98.521039][ T9700] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 98.526859][ T9700] ? __check_object_size+0x3d/0x437 [ 98.532053][ T9700] netlink_sendmsg+0x91c/0xea0 [ 98.536798][ T9700] ? netlink_unicast+0x7e0/0x7e0 [ 98.541752][ T9700] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 98.547285][ T9700] ? apparmor_socket_sendmsg+0x2a/0x30 [ 98.552759][ T9700] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.558992][ T9700] ? security_socket_sendmsg+0x8d/0xc0 [ 98.564488][ T9700] ? netlink_unicast+0x7e0/0x7e0 [ 98.569417][ T9700] sock_sendmsg+0xd7/0x130 [ 98.573823][ T9700] ____sys_sendmsg+0x753/0x880 [ 98.578567][ T9700] ? kernel_sendmsg+0x50/0x50 [ 98.583222][ T9700] ? debug_object_active_state+0x28a/0x350 [ 98.589008][ T9700] ? find_held_lock+0x35/0x130 [ 98.593753][ T9700] ___sys_sendmsg+0x100/0x170 [ 98.598423][ T9700] ? sendmsg_copy_msghdr+0x70/0x70 [ 98.603541][ T9700] ? lockdep_hardirqs_on+0x421/0x5e0 [ 98.608811][ T9700] ? __kasan_check_read+0x11/0x20 [ 98.613813][ T9700] ? mark_lock+0xc2/0x1220 [ 98.618210][ T9700] ? __kasan_check_read+0x11/0x20 [ 98.623211][ T9700] ? __lock_acquire+0x16f2/0x4a00 [ 98.628217][ T9700] ? debug_object_deactivate+0x320/0x320 [ 98.633834][ T9700] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 98.639977][ T9700] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 98.646565][ T9700] ? __fget_light+0x1ad/0x270 [ 98.651236][ T9700] ? __fdget+0x1b/0x20 [ 98.655287][ T9700] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 98.661508][ T9700] __sys_sendmsg+0x105/0x1d0 [ 98.666078][ T9700] ? __sys_sendmsg_sock+0xc0/0xc0 [ 98.671871][ T9700] ? lockdep_hardirqs_on+0x421/0x5e0 [ 98.677235][ T9700] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 98.682808][ T9700] ? do_syscall_64+0x26/0x790 [ 98.687489][ T9700] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.693545][ T9700] ? do_syscall_64+0x26/0x790 [ 98.698209][ T9700] __x64_sys_sendmsg+0x78/0xb0 [ 98.702998][ T9700] do_syscall_64+0xfa/0x790 [ 98.707520][ T9700] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 98.713393][ T9700] RIP: 0033:0x445b39 [ 98.717270][ T9700] Code: e8 ac cb 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 ab cc fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 98.736852][ T9700] RSP: 002b:00007fff94ad2ac8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 98.745244][ T9700] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 98.753589][ T9700] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 98.761719][ T9700] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 98.769801][ T9700] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000017f63 [ 98.778222][ T9700] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 98.786183][ T9700] Modules linked in: [ 98.790320][ T9700] CR2: ffffed1018f2dd87 [ 98.794462][ T9700] ---[ end trace 7ba2baeda6d6ce49 ]--- [ 98.799923][ T9700] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 98.806681][ T9700] Code: 45 85 e4 0f 84 aa 03 00 00 e8 6e 31 05 fb 48 8b 85 c8 fe ff ff 4e 8d 2c a8 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 0c 84 d2 74 08 4c [ 98.826271][ T9700] RSP: 0018:ffffc9000647f248 EFLAGS: 00010a06 [ 98.832315][ T9700] RAX: dffffc0000000000 RBX: ffff8880a796ec38 RCX: ffffffff867065d4 [ 98.840356][ T9700] RDX: 1ffff11018f2dd87 RSI: ffffffff867065e2 RDI: 0000000000000005 [ 98.848314][ T9700] RBP: ffffc9000647f3b0 R08: ffff88809783e200 R09: ffffc9000647f318 [ 98.856266][ T9700] R10: fffff52000c8fe68 R11: ffffc9000647f347 R12: 0000000000000010 [ 98.864220][ T9700] R13: ffff8880c796ec38 R14: ffff8880a796ec48 R15: ffffc9000647f388 [ 98.872274][ T9700] FS: 0000000001e41880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 98.881232][ T9700] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.887792][ T9700] CR2: ffffed1018f2dd87 CR3: 000000008c918000 CR4: 00000000001406e0 [ 98.895746][ T9700] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.903735][ T9700] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.911861][ T9700] Kernel panic - not syncing: Fatal exception [ 98.919100][ T9700] Kernel Offset: disabled [ 98.923418][ T9700] Rebooting in 86400 seconds..