[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 90.524755][ T27] audit: type=1800 audit(1583415252.479:25): pid=9610 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 90.557119][ T27] audit: type=1800 audit(1583415252.489:26): pid=9610 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 90.597093][ T27] audit: type=1800 audit(1583415252.489:27): pid=9610 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 '10.128.0.73' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 100.807550][ T9762] IPVS: ftp: loaded support on port[0] = 21 [ 100.849250][ T9764] BUG: unable to handle page fault for address: ffffed10182f4487 [ 100.857018][ T9764] #PF: supervisor read access in kernel mode [ 100.863207][ T9764] #PF: error_code(0x0000) - not-present page [ 100.869164][ T9764] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 100.875662][ T9764] Oops: 0000 [#1] PREEMPT SMP KASAN [ 100.880853][ T9764] CPU: 0 PID: 9764 Comm: syz-executor772 Not tainted 5.6.0-rc3-syzkaller #0 [ 100.889498][ T9764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.899548][ T9764] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 100.906289][ T9764] 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 [ 100.925874][ T9764] RSP: 0018:ffffc90002077248 EFLAGS: 00010a06 [ 100.931933][ T9764] RAX: dffffc0000000000 RBX: ffff8880a17a2438 RCX: ffffffff867065d4 [ 100.939898][ T9764] RDX: 1ffff110182f4487 RSI: ffffffff867065e2 RDI: 0000000000000005 [ 100.947850][ T9764] RBP: ffffc900020773b0 R08: ffff888094166480 R09: ffffc90002077318 [ 100.955800][ T9764] R10: fffff5200040ee68 R11: ffffc90002077347 R12: 000000000000001d [ 100.963750][ T9764] R13: ffff8880c17a2438 R14: ffff8880a17a2448 R15: ffffc90002077388 [ 100.971700][ T9764] FS: 0000000001bea880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 100.980619][ T9764] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 100.987197][ T9764] CR2: ffffed10182f4487 CR3: 00000000a95a5000 CR4: 00000000001406f0 [ 100.995150][ T9764] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.003099][ T9764] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 101.011049][ T9764] Call Trace: [ 101.014319][ T9764] ? __mutex_lock+0x458/0x13c0 [ 101.019071][ T9764] ? lock_downgrade+0x920/0x920 [ 101.023919][ T9764] ? ethnl_bitmap32_clear+0x390/0x390 [ 101.029291][ T9764] ? mutex_trylock+0x2d0/0x2d0 [ 101.034044][ T9764] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 101.040282][ T9764] ? ethnl_default_notify+0x6b0/0x6b0 [ 101.045637][ T9764] ethnl_update_bitset+0x4d/0x67 [ 101.050555][ T9764] ethnl_set_linkmodes+0x461/0xc30 [ 101.055643][ T9764] ? __kasan_check_read+0x11/0x20 [ 101.060647][ T9764] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 101.066172][ T9764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 101.072405][ T9764] ? kernel_text_address+0xe9/0x110 [ 101.077583][ T9764] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 101.083024][ T9764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 101.089247][ T9764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 101.095468][ T9764] ? security_capable+0x95/0xc0 [ 101.100319][ T9764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 101.106573][ T9764] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 101.112894][ T9764] genl_rcv_msg+0x67d/0xea0 [ 101.117418][ T9764] ? genl_rcv_msg+0x67d/0xea0 [ 101.122090][ T9764] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 101.128409][ T9764] ? __kasan_check_read+0x11/0x20 [ 101.133416][ T9764] ? __lock_acquire+0x8a0/0x4a00 [ 101.138340][ T9764] ? find_held_lock+0x35/0x130 [ 101.143167][ T9764] netlink_rcv_skb+0x177/0x450 [ 101.147917][ T9764] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 101.154358][ T9764] ? netlink_ack+0xb50/0xb50 [ 101.159025][ T9764] ? __kasan_check_write+0x14/0x20 [ 101.164146][ T9764] ? netlink_deliver_tap+0x248/0xbf0 [ 101.169426][ T9764] genl_rcv+0x29/0x40 [ 101.173482][ T9764] netlink_unicast+0x59e/0x7e0 [ 101.178227][ T9764] ? netlink_attachskb+0x870/0x870 [ 101.183324][ T9764] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 101.189034][ T9764] ? __check_object_size+0x3d/0x437 [ 101.194220][ T9764] netlink_sendmsg+0x91c/0xea0 [ 101.198986][ T9764] ? netlink_unicast+0x7e0/0x7e0 [ 101.204017][ T9764] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 101.209558][ T9764] ? apparmor_socket_sendmsg+0x2a/0x30 [ 101.215112][ T9764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 101.221444][ T9764] ? security_socket_sendmsg+0x8d/0xc0 [ 101.228628][ T9764] ? netlink_unicast+0x7e0/0x7e0 [ 101.233569][ T9764] sock_sendmsg+0xd7/0x130 [ 101.237967][ T9764] ____sys_sendmsg+0x753/0x880 [ 101.242714][ T9764] ? kernel_sendmsg+0x50/0x50 [ 101.247386][ T9764] ? debug_object_active_state+0x28a/0x350 [ 101.253219][ T9764] ? find_held_lock+0x35/0x130 [ 101.257997][ T9764] ___sys_sendmsg+0x100/0x170 [ 101.262661][ T9764] ? sendmsg_copy_msghdr+0x70/0x70 [ 101.267858][ T9764] ? lockdep_hardirqs_on+0x421/0x5e0 [ 101.273125][ T9764] ? __kasan_check_read+0x11/0x20 [ 101.278145][ T9764] ? mark_lock+0xc2/0x1220 [ 101.282554][ T9764] ? __kasan_check_read+0x11/0x20 [ 101.287578][ T9764] ? __lock_acquire+0x16f2/0x4a00 [ 101.292601][ T9764] ? debug_object_deactivate+0x320/0x320 [ 101.298217][ T9764] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 101.304445][ T9764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 101.310670][ T9764] ? __fget_light+0x1ad/0x270 [ 101.315327][ T9764] ? __fdget+0x1b/0x20 [ 101.319451][ T9764] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 101.325704][ T9764] __sys_sendmsg+0x105/0x1d0 [ 101.330321][ T9764] ? __sys_sendmsg_sock+0xc0/0xc0 [ 101.335327][ T9764] ? lockdep_hardirqs_on+0x421/0x5e0 [ 101.340598][ T9764] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 101.346035][ T9764] ? do_syscall_64+0x26/0x790 [ 101.350695][ T9764] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.356748][ T9764] ? do_syscall_64+0x26/0x790 [ 101.361425][ T9764] __x64_sys_sendmsg+0x78/0xb0 [ 101.366185][ T9764] do_syscall_64+0xfa/0x790 [ 101.370670][ T9764] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.376551][ T9764] RIP: 0033:0x445b39 [ 101.380424][ T9764] 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 [ 101.400010][ T9764] RSP: 002b:00007ffd45c723b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 101.408403][ T9764] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 101.416369][ T9764] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 101.424481][ T9764] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 101.432449][ T9764] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000189bb [ 101.440406][ T9764] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 101.448404][ T9764] Modules linked in: [ 101.452293][ T9764] CR2: ffffed10182f4487 [ 101.456459][ T9764] ---[ end trace 6b936b0d76340496 ]--- [ 101.461917][ T9764] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 101.468657][ T9764] 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 [ 101.488457][ T9764] RSP: 0018:ffffc90002077248 EFLAGS: 00010a06 [ 101.494561][ T9764] RAX: dffffc0000000000 RBX: ffff8880a17a2438 RCX: ffffffff867065d4 [ 101.502609][ T9764] RDX: 1ffff110182f4487 RSI: ffffffff867065e2 RDI: 0000000000000005 [ 101.510581][ T9764] RBP: ffffc900020773b0 R08: ffff888094166480 R09: ffffc90002077318 [ 101.518632][ T9764] R10: fffff5200040ee68 R11: ffffc90002077347 R12: 000000000000001d [ 101.526586][ T9764] R13: ffff8880c17a2438 R14: ffff8880a17a2448 R15: ffffc90002077388 [ 101.534541][ T9764] FS: 0000000001bea880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 101.543663][ T9764] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.550241][ T9764] CR2: ffffed10182f4487 CR3: 00000000a95a5000 CR4: 00000000001406f0 [ 101.558198][ T9764] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.566382][ T9764] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 101.574428][ T9764] Kernel panic - not syncing: Fatal exception [ 101.582102][ T9764] Kernel Offset: disabled [ 101.586451][ T9764] Rebooting in 86400 seconds..