Warning: Permanently added '10.128.0.104' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 81.774395][ T9721] IPVS: ftp: loaded support on port[0] = 21 [ 81.813632][ T9722] BUG: unable to handle page fault for address: ffffed101833a287 [ 81.821362][ T9722] #PF: supervisor read access in kernel mode [ 81.827346][ T9722] #PF: error_code(0x0000) - not-present page [ 81.833649][ T9722] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 81.840148][ T9722] Oops: 0000 [#1] PREEMPT SMP KASAN [ 81.845331][ T9722] CPU: 1 PID: 9722 Comm: syz-executor950 Not tainted 5.6.0-rc2-next-20200221-syzkaller #0 [ 81.855249][ T9722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.865316][ T9722] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 81.872057][ T9722] Code: 45 85 e4 0f 84 aa 03 00 00 e8 9e 00 01 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 [ 81.891649][ T9722] RSP: 0018:ffffc90002127248 EFLAGS: 00010a07 [ 81.897711][ T9722] RAX: dffffc0000000000 RBX: ffff8880a19d143c RCX: ffffffff8674e3f4 [ 81.905662][ T9722] RDX: 1ffff1101833a287 RSI: ffffffff8674e402 RDI: 0000000000000005 [ 81.913614][ T9722] RBP: ffffc900021273b0 R08: ffff8880968ea440 R09: ffffc90002127318 [ 81.921565][ T9722] R10: fffff52000424e68 R11: ffffc90002127347 R12: 0000000000000010 [ 81.929521][ T9722] R13: ffff8880c19d143c R14: ffff8880a19d144c R15: ffffc90002127388 [ 81.937473][ T9722] FS: 0000000000c05880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 81.946383][ T9722] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.952953][ T9722] CR2: ffffed101833a287 CR3: 00000000a04ff000 CR4: 00000000001406e0 [ 81.960907][ T9722] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.968860][ T9722] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.976847][ T9722] Call Trace: [ 81.980160][ T9722] ? __mutex_lock+0x458/0x13c0 [ 81.984908][ T9722] ? lock_downgrade+0x920/0x920 [ 81.989740][ T9722] ? ethnl_bitmap32_clear+0x390/0x390 [ 81.995110][ T9722] ? mutex_trylock+0x2d0/0x2d0 [ 81.999894][ T9722] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 82.006123][ T9722] ? ethnl_default_notify+0x6b0/0x6b0 [ 82.011476][ T9722] ethnl_update_bitset+0x4d/0x67 [ 82.016450][ T9722] ethnl_set_linkmodes+0x461/0xc30 [ 82.021549][ T9722] ? __kasan_check_read+0x11/0x20 [ 82.026566][ T9722] ? linkmodes_prepare_data+0x2a0/0x2a0 [ 82.032092][ T9722] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.038318][ T9722] ? kernel_text_address+0xe9/0x110 [ 82.043504][ T9722] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 82.048949][ T9722] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.055204][ T9722] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.061431][ T9722] ? security_capable+0x95/0xc0 [ 82.066331][ T9722] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.072566][ T9722] ? genl_family_rcv_msg_attrs_parse+0x1c6/0x300 [ 82.078882][ T9722] genl_rcv_msg+0x67d/0xea0 [ 82.083885][ T9722] ? genl_rcv_msg+0x67d/0xea0 [ 82.089331][ T9722] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 82.095650][ T9722] ? __kasan_check_read+0x11/0x20 [ 82.100660][ T9722] ? __lock_acquire+0x8a0/0x6320 [ 82.105585][ T9722] ? find_held_lock+0x35/0x130 [ 82.110340][ T9722] netlink_rcv_skb+0x177/0x450 [ 82.115120][ T9722] ? genl_family_rcv_msg_attrs_parse+0x300/0x300 [ 82.121447][ T9722] ? netlink_ack+0xb50/0xb50 [ 82.126068][ T9722] ? __kasan_check_write+0x14/0x20 [ 82.131196][ T9722] ? netlink_deliver_tap+0x248/0xbf0 [ 82.136485][ T9722] genl_rcv+0x29/0x40 [ 82.140450][ T9722] netlink_unicast+0x59e/0x7e0 [ 82.145220][ T9722] ? netlink_attachskb+0x870/0x870 [ 82.150320][ T9722] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 82.156022][ T9722] ? __check_object_size+0x3d/0x437 [ 82.161212][ T9722] netlink_sendmsg+0x91c/0xea0 [ 82.167287][ T9722] ? netlink_unicast+0x7e0/0x7e0 [ 82.172206][ T9722] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 82.177841][ T9722] ? apparmor_socket_sendmsg+0x2a/0x30 [ 82.183286][ T9722] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.189550][ T9722] ? security_socket_sendmsg+0x8d/0xc0 [ 82.195004][ T9722] ? netlink_unicast+0x7e0/0x7e0 [ 82.199933][ T9722] sock_sendmsg+0xd7/0x130 [ 82.204698][ T9722] ____sys_sendmsg+0x753/0x880 [ 82.209445][ T9722] ? kernel_sendmsg+0x50/0x50 [ 82.214108][ T9722] ? debug_object_active_state+0x28a/0x350 [ 82.219898][ T9722] ? find_held_lock+0x35/0x130 [ 82.224652][ T9722] ___sys_sendmsg+0x100/0x170 [ 82.229346][ T9722] ? sendmsg_copy_msghdr+0x70/0x70 [ 82.234445][ T9722] ? __kasan_check_read+0x11/0x20 [ 82.239467][ T9722] ? __kasan_check_read+0x11/0x20 [ 82.244479][ T9722] ? __lock_acquire+0x1af3/0x6320 [ 82.249586][ T9722] ? debug_object_deactivate+0x320/0x320 [ 82.255201][ T9722] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 82.261341][ T9722] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.267566][ T9722] ? __fget_light+0x1ad/0x270 [ 82.272222][ T9722] ? __fdget+0x1b/0x20 [ 82.276270][ T9722] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.282497][ T9722] __sys_sendmsg+0x105/0x1d0 [ 82.287084][ T9722] ? __sys_sendmsg_sock+0xc0/0xc0 [ 82.292090][ T9722] ? lockdep_hardirqs_on+0x421/0x5e0 [ 82.297358][ T9722] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 82.302801][ T9722] ? do_syscall_64+0x26/0x790 [ 82.307462][ T9722] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.313614][ T9722] ? do_syscall_64+0x26/0x790 [ 82.319296][ T9722] __x64_sys_sendmsg+0x78/0xb0 [ 82.324077][ T9722] do_syscall_64+0xfa/0x790 [ 82.328564][ T9722] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.334432][ T9722] RIP: 0033:0x445b39 [ 82.338343][ T9722] 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 [ 82.357930][ T9722] RSP: 002b:00007fff080b2718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 82.366340][ T9722] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445b39 [ 82.374730][ T9722] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 82.382701][ T9722] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000bb1414ac [ 82.390656][ T9722] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 82.399566][ T9722] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 82.407525][ T9722] Modules linked in: [ 82.411452][ T9722] CR2: ffffed101833a287 [ 82.415604][ T9722] ---[ end trace da3f288ef27f6d0d ]--- [ 82.421059][ T9722] RIP: 0010:ethnl_update_bitset32.part.0+0x8be/0x1820 [ 82.427805][ T9722] Code: 45 85 e4 0f 84 aa 03 00 00 e8 9e 00 01 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 [ 82.447396][ T9722] RSP: 0018:ffffc90002127248 EFLAGS: 00010a07 [ 82.453456][ T9722] RAX: dffffc0000000000 RBX: ffff8880a19d143c RCX: ffffffff8674e3f4 [ 82.461422][ T9722] RDX: 1ffff1101833a287 RSI: ffffffff8674e402 RDI: 0000000000000005 [ 82.469378][ T9722] RBP: ffffc900021273b0 R08: ffff8880968ea440 R09: ffffc90002127318 [ 82.477351][ T9722] R10: fffff52000424e68 R11: ffffc90002127347 R12: 0000000000000010 [ 82.485305][ T9722] R13: ffff8880c19d143c R14: ffff8880a19d144c R15: ffffc90002127388 [ 82.493259][ T9722] FS: 0000000000c05880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.503125][ T9722] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.509691][ T9722] CR2: ffffed101833a287 CR3: 00000000a04ff000 CR4: 00000000001406e0 [ 82.517647][ T9722] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.525600][ T9722] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.533550][ T9722] Kernel panic - not syncing: Fatal exception [ 82.540653][ T9722] Kernel Offset: disabled [ 82.544980][ T9722] Rebooting in 86400 seconds..