[ 79.747469][ T27] audit: type=1800 audit(1583011023.562:26): pid=9507 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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. [ 80.550841][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 80.550852][ T27] audit: type=1800 audit(1583011024.382:29): pid=9507 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 [ 80.593505][ T27] audit: type=1800 audit(1583011024.382:30): pid=9507 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 '10.128.0.91' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 92.145427][ T9660] IPVS: ftp: loaded support on port[0] = 21 [ 92.185155][ T9660] BUG: unable to handle page fault for address: ffffed1019243807 [ 92.192870][ T9660] #PF: supervisor read access in kernel mode [ 92.198821][ T9660] #PF: error_code(0x0000) - not-present page [ 92.204784][ T9660] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 92.211263][ T9660] Oops: 0000 [#1] PREEMPT SMP KASAN [ 92.216464][ T9660] CPU: 1 PID: 9660 Comm: syz-executor747 Not tainted 5.6.0-rc2-syzkaller #0 [ 92.225112][ T9660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.235181][ T9660] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 92.241922][ T9660] 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 [ 92.261499][ T9660] RSP: 0018:ffffc90001d87248 EFLAGS: 00010a03 [ 92.267550][ T9660] RAX: dffffc0000000000 RBX: ffff8880a921c03c RCX: ffffffff86704654 [ 92.275762][ T9660] RDX: 1ffff11019243807 RSI: ffffffff86704662 RDI: 0000000000000005 [ 92.283750][ T9660] RBP: ffffc90001d873b0 R08: ffff888095c64200 R09: ffffc90001d87318 [ 92.291702][ T9660] R10: fffff520003b0e68 R11: ffffc90001d87347 R12: 0000000000000010 [ 92.299652][ T9660] R13: ffff8880c921c03c R14: ffff8880a921c04c R15: ffffc90001d87388 [ 92.308125][ T9660] FS: 0000000000fb6940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 92.317029][ T9660] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.323585][ T9660] CR2: ffffed1019243807 CR3: 0000000098bad000 CR4: 00000000001406e0 [ 92.331530][ T9660] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.339491][ T9660] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.347434][ T9660] Call Trace: [ 92.350716][ T9660] ? __mutex_lock+0x458/0x13c0 [ 92.357121][ T9660] ? lock_downgrade+0x920/0x920 [ 92.361951][ T9660] ? ethnl_bitmap32_clear+0x390/0x390 [ 92.367312][ T9660] ? mutex_trylock+0x2d0/0x2d0 [ 92.372070][ T9660] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 92.378294][ T9660] ? ethnl_default_notify+0x6b0/0x6b0 [ 92.383652][ T9660] ethnl_update_bitset+0x4d/0x67 [ 92.388609][ T9660] ethnl_set_linkmodes+0x461/0xc30 [ 92.393696][ T9660] ? __kasan_check_read+0x11/0x20 [ 92.398701][ T9660] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 92.404223][ T9660] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.410441][ T9660] ? kernel_text_address+0xe9/0x110 [ 92.415618][ T9660] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 92.421080][ T9660] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.427333][ T9660] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.433583][ T9660] ? security_capable+0x95/0xc0 [ 92.438415][ T9660] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.444664][ T9660] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 92.450970][ T9660] genl_rcv_msg+0x67d/0xea0 [ 92.455455][ T9660] ? genl_rcv_msg+0x67d/0xea0 [ 92.460111][ T9660] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 92.466417][ T9660] ? __kasan_check_read+0x11/0x20 [ 92.471425][ T9660] ? __lock_acquire+0x8a0/0x4a00 [ 92.476348][ T9660] ? find_held_lock+0x35/0x130 [ 92.481106][ T9660] netlink_rcv_skb+0x177/0x450 [ 92.485852][ T9660] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 92.492158][ T9660] ? netlink_ack+0xb50/0xb50 [ 92.496724][ T9660] ? __kasan_check_write+0x14/0x20 [ 92.501810][ T9660] ? netlink_deliver_tap+0x248/0xbf0 [ 92.507072][ T9660] genl_rcv+0x29/0x40 [ 92.511030][ T9660] netlink_unicast+0x59e/0x7e0 [ 92.515771][ T9660] ? netlink_attachskb+0x870/0x870 [ 92.520857][ T9660] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 92.526551][ T9660] ? __check_object_size+0x3d/0x437 [ 92.531717][ T9660] netlink_sendmsg+0x91c/0xea0 [ 92.536566][ T9660] ? netlink_unicast+0x7e0/0x7e0 [ 92.541509][ T9660] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 92.547032][ T9660] ? apparmor_socket_sendmsg+0x2a/0x30 [ 92.552465][ T9660] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.558700][ T9660] ? security_socket_sendmsg+0x8d/0xc0 [ 92.564147][ T9660] ? netlink_unicast+0x7e0/0x7e0 [ 92.569063][ T9660] sock_sendmsg+0xd7/0x130 [ 92.573469][ T9660] ____sys_sendmsg+0x753/0x880 [ 92.578211][ T9660] ? kernel_sendmsg+0x50/0x50 [ 92.582865][ T9660] ? debug_object_active_state+0x28a/0x350 [ 92.588654][ T9660] ? find_held_lock+0x35/0x130 [ 92.593427][ T9660] ___sys_sendmsg+0x100/0x170 [ 92.598102][ T9660] ? sendmsg_copy_msghdr+0x70/0x70 [ 92.603201][ T9660] ? lockdep_hardirqs_on+0x421/0x5e0 [ 92.608474][ T9660] ? __kasan_check_read+0x11/0x20 [ 92.613476][ T9660] ? mark_lock+0xc2/0x1220 [ 92.617870][ T9660] ? __kasan_check_read+0x11/0x20 [ 92.622894][ T9660] ? __lock_acquire+0x16f2/0x4a00 [ 92.627924][ T9660] ? debug_object_deactivate+0x320/0x320 [ 92.633535][ T9660] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 92.639697][ T9660] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 92.645928][ T9660] ? __fget_light+0x1ad/0x270 [ 92.650585][ T9660] ? __fdget+0x1b/0x20 [ 92.654632][ T9660] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 92.660850][ T9660] __sys_sendmsg+0x105/0x1d0 [ 92.665456][ T9660] ? __sys_sendmsg_sock+0xc0/0xc0 [ 92.670456][ T9660] ? lockdep_hardirqs_on+0x421/0x5e0 [ 92.675722][ T9660] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 92.681171][ T9660] ? do_syscall_64+0x26/0x790 [ 92.685834][ T9660] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.691908][ T9660] ? do_syscall_64+0x26/0x790 [ 92.696596][ T9660] __x64_sys_sendmsg+0x78/0xb0 [ 92.701364][ T9660] do_syscall_64+0xfa/0x790 [ 92.705875][ T9660] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.711749][ T9660] RIP: 0033:0x445cd9 [ 92.715642][ T9660] 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 [ 92.735264][ T9660] RSP: 002b:00007ffe38767cc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 92.743663][ T9660] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445cd9 [ 92.751635][ T9660] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 92.759583][ T9660] RBP: 00007ffe38767cf0 R08: 0000000000000000 R09: 0000000000000003 [ 92.767574][ T9660] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 92.775547][ T9660] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 92.783560][ T9660] Modules linked in: [ 92.787437][ T9660] CR2: ffffed1019243807 [ 92.791595][ T9660] ---[ end trace 19000f6c8c64a2ae ]--- [ 92.797040][ T9660] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 92.803780][ T9660] 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 [ 92.823367][ T9660] RSP: 0018:ffffc90001d87248 EFLAGS: 00010a03 [ 92.829417][ T9660] RAX: dffffc0000000000 RBX: ffff8880a921c03c RCX: ffffffff86704654 [ 92.837411][ T9660] RDX: 1ffff11019243807 RSI: ffffffff86704662 RDI: 0000000000000005 [ 92.845360][ T9660] RBP: ffffc90001d873b0 R08: ffff888095c64200 R09: ffffc90001d87318 [ 92.853308][ T9660] R10: fffff520003b0e68 R11: ffffc90001d87347 R12: 0000000000000010 [ 92.861254][ T9660] R13: ffff8880c921c03c R14: ffff8880a921c04c R15: ffffc90001d87388 [ 92.869217][ T9660] FS: 0000000000fb6940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 92.878120][ T9660] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.884722][ T9660] CR2: ffffed1019243807 CR3: 0000000098bad000 CR4: 00000000001406e0 [ 92.892674][ T9660] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.900624][ T9660] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.908607][ T9660] Kernel panic - not syncing: Fatal exception [ 92.915652][ T9660] Kernel Offset: disabled [ 92.919972][ T9660] Rebooting in 86400 seconds..