[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 69.122090][ T28] audit: type=1800 audit(1583378706.286:25): pid=9513 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 69.142724][ T28] audit: type=1800 audit(1583378706.296:26): pid=9513 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 69.198542][ T28] audit: type=1800 audit(1583378706.296:27): pid=9513 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 '10.128.0.116' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 80.411597][ T9666] IPVS: ftp: loaded support on port[0] = 21 [ 80.448102][ T9666] BUG: unable to handle page fault for address: ffffed10190c9587 [ 80.455833][ T9666] #PF: supervisor read access in kernel mode [ 80.461819][ T9666] #PF: error_code(0x0000) - not-present page [ 80.467770][ T9666] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 80.474294][ T9666] Oops: 0000 [#1] PREEMPT SMP KASAN [ 80.479468][ T9666] CPU: 1 PID: 9666 Comm: syz-executor476 Not tainted 5.6.0-rc3-syzkaller #0 [ 80.488115][ T9666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.498164][ T9666] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 80.504951][ T9666] 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 [ 80.524536][ T9666] RSP: 0018:ffffc90005a9f248 EFLAGS: 00010a07 [ 80.530629][ T9666] RAX: dffffc0000000000 RBX: ffff8880a864ac3c RCX: ffffffff867065d4 [ 80.538590][ T9666] RDX: 1ffff110190c9587 RSI: ffffffff867065e2 RDI: 0000000000000005 [ 80.546570][ T9666] RBP: ffffc90005a9f3b0 R08: ffff8880984ba240 R09: ffffc90005a9f318 [ 80.554561][ T9666] R10: fffff52000b53e68 R11: ffffc90005a9f347 R12: 0000000000000010 [ 80.562510][ T9666] R13: ffff8880c864ac3c R14: ffff8880a864ac4c R15: ffffc90005a9f388 [ 80.570502][ T9666] FS: 000000000232d940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 80.579408][ T9666] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.586011][ T9666] CR2: ffffed10190c9587 CR3: 000000008e64a000 CR4: 00000000001406e0 [ 80.593974][ T9666] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.602017][ T9666] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.609980][ T9666] Call Trace: [ 80.613257][ T9666] ? __mutex_lock+0x458/0x13c0 [ 80.618021][ T9666] ? lock_downgrade+0x920/0x920 [ 80.622854][ T9666] ? ethnl_bitmap32_clear+0x390/0x390 [ 80.628215][ T9666] ? mutex_trylock+0x2d0/0x2d0 [ 80.632972][ T9666] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 80.639192][ T9666] ? ethnl_default_notify+0x6b0/0x6b0 [ 80.644544][ T9666] ethnl_update_bitset+0x4d/0x67 [ 80.649461][ T9666] ethnl_set_linkmodes+0x461/0xc30 [ 80.654549][ T9666] ? __kasan_check_read+0x11/0x20 [ 80.659554][ T9666] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 80.665093][ T9666] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 80.671417][ T9666] ? kernel_text_address+0xe9/0x110 [ 80.676601][ T9666] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 80.682040][ T9666] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 80.688274][ T9666] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 80.694514][ T9666] ? security_capable+0x95/0xc0 [ 80.699346][ T9666] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 80.705567][ T9666] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 80.711886][ T9666] genl_rcv_msg+0x67d/0xea0 [ 80.716367][ T9666] ? genl_rcv_msg+0x67d/0xea0 [ 80.721029][ T9666] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 80.727338][ T9666] ? __kasan_check_read+0x11/0x20 [ 80.732341][ T9666] ? __lock_acquire+0x8a0/0x4a00 [ 80.737316][ T9666] ? find_held_lock+0x35/0x130 [ 80.742063][ T9666] netlink_rcv_skb+0x177/0x450 [ 80.746819][ T9666] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 80.753182][ T9666] ? netlink_ack+0xb50/0xb50 [ 80.757762][ T9666] ? __kasan_check_write+0x14/0x20 [ 80.762855][ T9666] ? netlink_deliver_tap+0x248/0xbf0 [ 80.768129][ T9666] genl_rcv+0x29/0x40 [ 80.772095][ T9666] netlink_unicast+0x59e/0x7e0 [ 80.776838][ T9666] ? netlink_attachskb+0x870/0x870 [ 80.781928][ T9666] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 80.787625][ T9666] ? __check_object_size+0x3d/0x437 [ 80.792803][ T9666] netlink_sendmsg+0x91c/0xea0 [ 80.797548][ T9666] ? netlink_unicast+0x7e0/0x7e0 [ 80.802475][ T9666] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 80.808001][ T9666] ? apparmor_socket_sendmsg+0x2a/0x30 [ 80.813438][ T9666] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 80.819656][ T9666] ? security_socket_sendmsg+0x8d/0xc0 [ 80.825096][ T9666] ? netlink_unicast+0x7e0/0x7e0 [ 80.830029][ T9666] sock_sendmsg+0xd7/0x130 [ 80.834630][ T9666] ____sys_sendmsg+0x753/0x880 [ 80.839393][ T9666] ? kernel_sendmsg+0x50/0x50 [ 80.844068][ T9666] ? debug_object_active_state+0x28a/0x350 [ 80.849912][ T9666] ? find_held_lock+0x35/0x130 [ 80.854668][ T9666] ___sys_sendmsg+0x100/0x170 [ 80.859342][ T9666] ? sendmsg_copy_msghdr+0x70/0x70 [ 80.864438][ T9666] ? lockdep_hardirqs_on+0x421/0x5e0 [ 80.869709][ T9666] ? __kasan_check_read+0x11/0x20 [ 80.874739][ T9666] ? mark_lock+0xc2/0x1220 [ 80.879154][ T9666] ? __kasan_check_read+0x11/0x20 [ 80.884169][ T9666] ? __lock_acquire+0x16f2/0x4a00 [ 80.889182][ T9666] ? debug_object_deactivate+0x320/0x320 [ 80.894792][ T9666] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 80.900944][ T9666] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 80.907172][ T9666] ? __fget_light+0x1ad/0x270 [ 80.911855][ T9666] ? __fdget+0x1b/0x20 [ 80.915903][ T9666] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 80.922127][ T9666] __sys_sendmsg+0x105/0x1d0 [ 80.926713][ T9666] ? __sys_sendmsg_sock+0xc0/0xc0 [ 80.931718][ T9666] ? lockdep_hardirqs_on+0x421/0x5e0 [ 80.936989][ T9666] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 80.942428][ T9666] ? do_syscall_64+0x26/0x790 [ 80.947086][ T9666] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 80.953144][ T9666] ? do_syscall_64+0x26/0x790 [ 80.957805][ T9666] __x64_sys_sendmsg+0x78/0xb0 [ 80.962553][ T9666] do_syscall_64+0xfa/0x790 [ 80.967053][ T9666] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 80.972925][ T9666] RIP: 0033:0x445d29 [ 80.976820][ T9666] Code: 43 02 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 90 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 2b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 80.996405][ T9666] RSP: 002b:00007ffff916fdd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 81.004806][ T9666] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445d29 [ 81.012758][ T9666] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 81.020718][ T9666] RBP: 00007ffff916fe00 R08: 0000000000000000 R09: 0000000001000002 [ 81.028681][ T9666] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 81.036750][ T9666] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 81.044722][ T9666] Modules linked in: [ 81.048595][ T9666] CR2: ffffed10190c9587 [ 81.052743][ T9666] ---[ end trace 2788fa9722158fb8 ]--- [ 81.058221][ T9666] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 81.064972][ T9666] 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 [ 81.084556][ T9666] RSP: 0018:ffffc90005a9f248 EFLAGS: 00010a07 [ 81.090599][ T9666] RAX: dffffc0000000000 RBX: ffff8880a864ac3c RCX: ffffffff867065d4 [ 81.098575][ T9666] RDX: 1ffff110190c9587 RSI: ffffffff867065e2 RDI: 0000000000000005 [ 81.106529][ T9666] RBP: ffffc90005a9f3b0 R08: ffff8880984ba240 R09: ffffc90005a9f318 [ 81.114495][ T9666] R10: fffff52000b53e68 R11: ffffc90005a9f347 R12: 0000000000000010 [ 81.122461][ T9666] R13: ffff8880c864ac3c R14: ffff8880a864ac4c R15: ffffc90005a9f388 [ 81.130431][ T9666] FS: 000000000232d940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 81.139353][ T9666] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.145917][ T9666] CR2: ffffed10190c9587 CR3: 000000008e64a000 CR4: 00000000001406e0 [ 81.153884][ T9666] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.161851][ T9666] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.169802][ T9666] Kernel panic - not syncing: Fatal exception [ 81.177273][ T9666] Kernel Offset: disabled [ 81.181596][ T9666] Rebooting in 86400 seconds..