[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 84.207215][ T27] audit: type=1800 audit(1583053492.389:25): pid=9627 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 84.227773][ T27] audit: type=1800 audit(1583053492.389:26): pid=9627 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 84.273773][ T27] audit: type=1800 audit(1583053492.399:27): pid=9627 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 '10.128.0.141' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 93.059564][ T9784] IPVS: ftp: loaded support on port[0] = 21 [ 93.120816][ T9790] BUG: unable to handle page fault for address: ffffed10184b7307 [ 93.128668][ T9790] #PF: supervisor read access in kernel mode [ 93.134635][ T9790] #PF: error_code(0x0000) - not-present page [ 93.140841][ T9790] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 93.147354][ T9790] Oops: 0000 [#1] PREEMPT SMP KASAN [ 93.152553][ T9790] CPU: 1 PID: 9790 Comm: syz-executor429 Not tainted 5.6.0-rc2-syzkaller #0 [ 93.161782][ T9790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.172104][ T9790] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 93.179239][ T9790] Code: 45 85 e4 0f 84 aa 03 00 00 e8 5e 41 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 [ 93.199177][ T9790] RSP: 0018:ffffc90004c87248 EFLAGS: 00010a02 [ 93.205485][ T9790] RAX: dffffc0000000000 RBX: ffff8880a25b9838 RCX: ffffffff86704654 [ 93.213456][ T9790] RDX: 1ffff110184b7307 RSI: ffffffff86704662 RDI: 0000000000000005 [ 93.221495][ T9790] RBP: ffffc90004c873b0 R08: ffff8880902363c0 R09: ffffc90004c87318 [ 93.229651][ T9790] R10: fffff52000990e68 R11: ffffc90004c87347 R12: 000000000000001d [ 93.237638][ T9790] R13: ffff8880c25b9838 R14: ffff8880a25b9848 R15: ffffc90004c87388 [ 93.245607][ T9790] FS: 0000000001426880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 93.254778][ T9790] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.261356][ T9790] CR2: ffffed10184b7307 CR3: 00000000989b3000 CR4: 00000000001406e0 [ 93.269412][ T9790] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.277493][ T9790] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.285467][ T9790] Call Trace: [ 93.288776][ T9790] ? __mutex_lock+0x458/0x13c0 [ 93.293634][ T9790] ? lock_downgrade+0x920/0x920 [ 93.298839][ T9790] ? ethnl_bitmap32_clear+0x390/0x390 [ 93.304388][ T9790] ? mutex_trylock+0x2d0/0x2d0 [ 93.309485][ T9790] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 93.316232][ T9790] ? ethnl_default_notify+0x6b0/0x6b0 [ 93.321795][ T9790] ethnl_update_bitset+0x4d/0x67 [ 93.326907][ T9790] ethnl_set_linkmodes+0x461/0xc30 [ 93.332024][ T9790] ? __kasan_check_read+0x11/0x20 [ 93.337047][ T9790] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 93.342805][ T9790] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.349040][ T9790] ? kernel_text_address+0xe9/0x110 [ 93.354238][ T9790] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 93.359812][ T9790] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.366220][ T9790] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.372576][ T9790] ? security_capable+0x95/0xc0 [ 93.377443][ T9790] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.383681][ T9790] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 93.390013][ T9790] genl_rcv_msg+0x67d/0xea0 [ 93.394599][ T9790] ? genl_rcv_msg+0x67d/0xea0 [ 93.399379][ T9790] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 93.405709][ T9790] ? __kasan_check_read+0x11/0x20 [ 93.410735][ T9790] ? __lock_acquire+0x8a0/0x4a00 [ 93.415664][ T9790] ? find_held_lock+0x35/0x130 [ 93.420650][ T9790] netlink_rcv_skb+0x177/0x450 [ 93.425409][ T9790] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 93.431859][ T9790] ? netlink_ack+0xb50/0xb50 [ 93.436435][ T9790] ? __kasan_check_write+0x14/0x20 [ 93.441556][ T9790] ? netlink_deliver_tap+0x248/0xbf0 [ 93.446985][ T9790] genl_rcv+0x29/0x40 [ 93.450968][ T9790] netlink_unicast+0x59e/0x7e0 [ 93.455738][ T9790] ? netlink_attachskb+0x870/0x870 [ 93.460838][ T9790] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 93.466801][ T9790] ? __check_object_size+0x3d/0x437 [ 93.472002][ T9790] netlink_sendmsg+0x91c/0xea0 [ 93.476766][ T9790] ? netlink_unicast+0x7e0/0x7e0 [ 93.481801][ T9790] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 93.487451][ T9790] ? apparmor_socket_sendmsg+0x2a/0x30 [ 93.492913][ T9790] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.499140][ T9790] ? security_socket_sendmsg+0x8d/0xc0 [ 93.504667][ T9790] ? netlink_unicast+0x7e0/0x7e0 [ 93.509590][ T9790] sock_sendmsg+0xd7/0x130 [ 93.513990][ T9790] ____sys_sendmsg+0x753/0x880 [ 93.518753][ T9790] ? kernel_sendmsg+0x50/0x50 [ 93.523449][ T9790] ? debug_object_active_state+0x28a/0x350 [ 93.529253][ T9790] ? find_held_lock+0x35/0x130 [ 93.534005][ T9790] ___sys_sendmsg+0x100/0x170 [ 93.538945][ T9790] ? sendmsg_copy_msghdr+0x70/0x70 [ 93.544048][ T9790] ? lockdep_hardirqs_on+0x421/0x5e0 [ 93.549323][ T9790] ? __kasan_check_read+0x11/0x20 [ 93.554370][ T9790] ? mark_lock+0xc2/0x1220 [ 93.558781][ T9790] ? __kasan_check_read+0x11/0x20 [ 93.563786][ T9790] ? __lock_acquire+0x16f2/0x4a00 [ 93.568793][ T9790] ? debug_object_deactivate+0x320/0x320 [ 93.574437][ T9790] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 93.580594][ T9790] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.587787][ T9790] ? __fget_light+0x1ad/0x270 [ 93.592472][ T9790] ? __fdget+0x1b/0x20 [ 93.596527][ T9790] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.602765][ T9790] __sys_sendmsg+0x105/0x1d0 [ 93.607370][ T9790] ? __sys_sendmsg_sock+0xc0/0xc0 [ 93.612396][ T9790] ? lockdep_hardirqs_on+0x421/0x5e0 [ 93.617696][ T9790] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 93.623145][ T9790] ? do_syscall_64+0x26/0x790 [ 93.627819][ T9790] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.633963][ T9790] ? do_syscall_64+0x26/0x790 [ 93.638744][ T9790] __x64_sys_sendmsg+0x78/0xb0 [ 93.643605][ T9790] do_syscall_64+0xfa/0x790 [ 93.648125][ T9790] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.654000][ T9790] RIP: 0033:0x445b39 [ 93.657892][ T9790] 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 [ 93.677658][ T9790] RSP: 002b:00007ffc88876718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 93.686177][ T9790] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 93.694293][ T9790] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 93.702430][ T9790] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 93.710447][ T9790] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000016b8f [ 93.718429][ T9790] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 93.726570][ T9790] Modules linked in: [ 93.730456][ T9790] CR2: ffffed10184b7307 [ 93.734793][ T9790] ---[ end trace e27c3ed273e5478b ]--- [ 93.740271][ T9790] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 93.747189][ T9790] Code: 45 85 e4 0f 84 aa 03 00 00 e8 5e 41 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 [ 93.766843][ T9790] RSP: 0018:ffffc90004c87248 EFLAGS: 00010a02 [ 93.773192][ T9790] RAX: dffffc0000000000 RBX: ffff8880a25b9838 RCX: ffffffff86704654 [ 93.781162][ T9790] RDX: 1ffff110184b7307 RSI: ffffffff86704662 RDI: 0000000000000005 [ 93.789997][ T9790] RBP: ffffc90004c873b0 R08: ffff8880902363c0 R09: ffffc90004c87318 [ 93.798073][ T9790] R10: fffff52000990e68 R11: ffffc90004c87347 R12: 000000000000001d [ 93.806165][ T9790] R13: ffff8880c25b9838 R14: ffff8880a25b9848 R15: ffffc90004c87388 [ 93.814139][ T9790] FS: 0000000001426880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 93.823173][ T9790] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.830636][ T9790] CR2: ffffed10184b7307 CR3: 00000000989b3000 CR4: 00000000001406e0 [ 93.838605][ T9790] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.847639][ T9790] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.855694][ T9790] Kernel panic - not syncing: Fatal exception [ 93.863680][ T9790] Kernel Offset: disabled [ 93.868034][ T9790] Rebooting in 86400 seconds..