[ 95.928579][ T28] audit: type=1800 audit(1583104816.835:25): pid=9857 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 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. [ 96.713616][ T28] kauditd_printk_skb: 3 callbacks suppressed [ 96.713627][ T28] audit: type=1800 audit(1583104817.625:29): pid=9857 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 96.740485][ T28] audit: type=1800 audit(1583104817.625:30): pid=9857 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 106.102905][T10010] IPVS: ftp: loaded support on port[0] = 21 [ 106.144266][T10011] BUG: unable to handle page fault for address: ffffed1018899c07 [ 106.152501][T10011] #PF: supervisor read access in kernel mode [ 106.158558][T10011] #PF: error_code(0x0000) - not-present page [ 106.164672][T10011] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 106.171411][T10011] Oops: 0000 [#1] PREEMPT SMP KASAN [ 106.176838][T10011] CPU: 0 PID: 10011 Comm: syz-executor699 Not tainted 5.6.0-rc3-syzkaller #0 [ 106.185646][T10011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 106.195728][T10011] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 106.202494][T10011] 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 [ 106.223870][T10011] RSP: 0018:ffffc90001f07248 EFLAGS: 00010a02 [ 106.229999][T10011] RAX: dffffc0000000000 RBX: ffff8880a44ce038 RCX: ffffffff867065d4 [ 106.238214][T10011] RDX: 1ffff11018899c07 RSI: ffffffff867065e2 RDI: 0000000000000005 [ 106.246179][T10011] RBP: ffffc90001f073b0 R08: ffff88809d4f6400 R09: ffffc90001f07318 [ 106.254670][T10011] R10: fffff520003e0e68 R11: ffffc90001f07347 R12: 000000000000001d [ 106.262842][T10011] R13: ffff8880c44ce038 R14: ffff8880a44ce048 R15: ffffc90001f07388 [ 106.270813][T10011] FS: 000000000183e880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 106.279769][T10011] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 106.286345][T10011] CR2: ffffed1018899c07 CR3: 00000000a7f9d000 CR4: 00000000001406f0 [ 106.294541][T10011] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 106.302720][T10011] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 106.310695][T10011] Call Trace: [ 106.313996][T10011] ? __mutex_lock+0x458/0x13c0 [ 106.318760][T10011] ? lock_downgrade+0x920/0x920 [ 106.323796][T10011] ? ethnl_bitmap32_clear+0x390/0x390 [ 106.329420][T10011] ? mutex_trylock+0x2d0/0x2d0 [ 106.334311][T10011] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 106.340565][T10011] ? ethnl_default_notify+0x6b0/0x6b0 [ 106.346294][T10011] ethnl_update_bitset+0x4d/0x67 [ 106.351340][T10011] ethnl_set_linkmodes+0x461/0xc30 [ 106.356657][T10011] ? __kasan_check_read+0x11/0x20 [ 106.361689][T10011] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 106.367416][T10011] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 106.373765][T10011] ? kernel_text_address+0xe9/0x110 [ 106.379113][T10011] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 106.384695][T10011] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 106.390943][T10011] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 106.397775][T10011] ? security_capable+0x95/0xc0 [ 106.402887][T10011] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 106.409637][T10011] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 106.416375][T10011] genl_rcv_msg+0x67d/0xea0 [ 106.421116][T10011] ? genl_rcv_msg+0x67d/0xea0 [ 106.426270][T10011] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 106.432769][T10011] ? __kasan_check_read+0x11/0x20 [ 106.438393][T10011] ? __lock_acquire+0x8a0/0x4a00 [ 106.443455][T10011] ? find_held_lock+0x35/0x130 [ 106.448214][T10011] netlink_rcv_skb+0x177/0x450 [ 106.453136][T10011] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 106.459460][T10011] ? netlink_ack+0xb50/0xb50 [ 106.464047][T10011] ? __kasan_check_write+0x14/0x20 [ 106.469363][T10011] ? netlink_deliver_tap+0x248/0xbf0 [ 106.474692][T10011] genl_rcv+0x29/0x40 [ 106.478807][T10011] netlink_unicast+0x59e/0x7e0 [ 106.483845][T10011] ? netlink_attachskb+0x870/0x870 [ 106.489448][T10011] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 106.495265][T10011] ? __check_object_size+0x3d/0x437 [ 106.500750][T10011] netlink_sendmsg+0x91c/0xea0 [ 106.505688][T10011] ? netlink_unicast+0x7e0/0x7e0 [ 106.510626][T10011] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 106.516273][T10011] ? apparmor_socket_sendmsg+0x2a/0x30 [ 106.521870][T10011] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 106.528884][T10011] ? security_socket_sendmsg+0x8d/0xc0 [ 106.534476][T10011] ? netlink_unicast+0x7e0/0x7e0 [ 106.539422][T10011] sock_sendmsg+0xd7/0x130 [ 106.543898][T10011] ____sys_sendmsg+0x753/0x880 [ 106.548806][T10011] ? kernel_sendmsg+0x50/0x50 [ 106.553604][T10011] ? debug_object_active_state+0x28a/0x350 [ 106.559525][T10011] ? find_held_lock+0x35/0x130 [ 106.564305][T10011] ___sys_sendmsg+0x100/0x170 [ 106.569182][T10011] ? sendmsg_copy_msghdr+0x70/0x70 [ 106.574292][T10011] ? lockdep_hardirqs_on+0x421/0x5e0 [ 106.579754][T10011] ? __kasan_check_read+0x11/0x20 [ 106.584784][T10011] ? mark_lock+0xc2/0x1220 [ 106.589208][T10011] ? __kasan_check_read+0x11/0x20 [ 106.594399][T10011] ? __lock_acquire+0x16f2/0x4a00 [ 106.599667][T10011] ? debug_object_deactivate+0x320/0x320 [ 106.605307][T10011] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 106.611781][T10011] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 106.618046][T10011] ? __fget_light+0x1ad/0x270 [ 106.623876][T10011] ? __fdget+0x1b/0x20 [ 106.628037][T10011] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 106.634675][T10011] __sys_sendmsg+0x105/0x1d0 [ 106.639428][T10011] ? __sys_sendmsg_sock+0xc0/0xc0 [ 106.644508][T10011] ? lockdep_hardirqs_on+0x421/0x5e0 [ 106.650070][T10011] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 106.655534][T10011] ? do_syscall_64+0x26/0x790 [ 106.660301][T10011] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 106.666423][T10011] ? do_syscall_64+0x26/0x790 [ 106.671100][T10011] __x64_sys_sendmsg+0x78/0xb0 [ 106.676101][T10011] do_syscall_64+0xfa/0x790 [ 106.680613][T10011] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 106.686745][T10011] RIP: 0033:0x445b39 [ 106.690775][T10011] 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 [ 106.710792][T10011] RSP: 002b:00007fffd1747078 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 106.719198][T10011] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 106.727323][T10011] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 106.735424][T10011] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 106.743957][T10011] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 106.752031][T10011] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 106.760071][T10011] Modules linked in: [ 106.763958][T10011] CR2: ffffed1018899c07 [ 106.768230][T10011] ---[ end trace 26a9fc2183250ca9 ]--- [ 106.774909][T10011] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 106.781933][T10011] 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 [ 106.802059][T10011] RSP: 0018:ffffc90001f07248 EFLAGS: 00010a02 [ 106.808317][T10011] RAX: dffffc0000000000 RBX: ffff8880a44ce038 RCX: ffffffff867065d4 [ 106.816285][T10011] RDX: 1ffff11018899c07 RSI: ffffffff867065e2 RDI: 0000000000000005 [ 106.824406][T10011] RBP: ffffc90001f073b0 R08: ffff88809d4f6400 R09: ffffc90001f07318 [ 106.832677][T10011] R10: fffff520003e0e68 R11: ffffc90001f07347 R12: 000000000000001d [ 106.841173][T10011] R13: ffff8880c44ce038 R14: ffff8880a44ce048 R15: ffffc90001f07388 [ 106.849295][T10011] FS: 000000000183e880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 106.858317][T10011] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 106.864991][T10011] CR2: ffffed1018899c07 CR3: 00000000a7f9d000 CR4: 00000000001406f0 [ 106.873096][T10011] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 106.881201][T10011] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 106.889488][T10011] Kernel panic - not syncing: Fatal exception [ 106.897563][T10011] Kernel Offset: disabled [ 106.902066][T10011] Rebooting in 86400 seconds..