Warning: Permanently added '10.128.1.34' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 89.284241][ T9698] IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready [ 89.305659][ T9698] general protection fault, probably for non-canonical address 0xdffffc0000000056: 0000 [#1] PREEMPT SMP KASAN [ 89.317605][ T9698] KASAN: null-ptr-deref in range [0x00000000000002b0-0x00000000000002b7] [ 89.326199][ T9698] CPU: 0 PID: 9698 Comm: syz-executor712 Not tainted 5.5.0-syzkaller #0 [ 89.334746][ T9698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.344889][ T9698] RIP: 0010:inet6_set_link_af+0x66e/0xae0 [ 89.350598][ T9698] Code: 38 d0 7f 08 84 c0 0f 85 20 03 00 00 48 8d bb b0 02 00 00 45 0f b6 64 24 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1a 03 00 00 44 89 a3 b0 02 00 [ 89.370187][ T9698] RSP: 0018:ffffc90005b06d40 EFLAGS: 00010206 [ 89.376237][ T9698] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff86df39a6 [ 89.384209][ T9698] RDX: 0000000000000056 RSI: ffffffff86df3e74 RDI: 00000000000002b0 [ 89.392343][ T9698] RBP: ffffc90005b06e70 R08: ffff8880a2ac0380 R09: ffffc90005b06db0 [ 89.400305][ T9698] R10: fffff52000b60dbe R11: ffffc90005b06df7 R12: 0000000000000000 [ 89.408407][ T9698] R13: 0000000000000000 R14: ffff8880a1fcc424 R15: dffffc0000000000 [ 89.416372][ T9698] FS: 0000000000c46880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 89.425305][ T9698] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.431875][ T9698] CR2: 000055f0494ca0d0 CR3: 000000009e4ac000 CR4: 00000000001406f0 [ 89.439863][ T9698] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.447857][ T9698] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.455807][ T9698] Call Trace: [ 89.459092][ T9698] ? addrconf_sysctl_disable+0x700/0x700 [ 89.464753][ T9698] ? mark_held_locks+0xf0/0xf0 [ 89.469515][ T9698] ? lock_acquire+0x190/0x410 [ 89.474188][ T9698] ? do_setlink+0x2961/0x3720 [ 89.478866][ T9698] do_setlink+0x2a9f/0x3720 [ 89.483362][ T9698] ? do_setlink+0x2a9f/0x3720 [ 89.488029][ T9698] ? rtnl_getlink+0xb50/0xb50 [ 89.492698][ T9698] ? __kasan_check_read+0x11/0x20 [ 89.497802][ T9698] ? __lock_acquire+0x8a0/0x4a00 [ 89.502733][ T9698] ? __kasan_check_read+0x11/0x20 [ 89.507762][ T9698] ? __nla_parse+0x43/0x60 [ 89.512378][ T9698] ? validate_linkmsg+0x4be/0x7d0 [ 89.517506][ T9698] ? find_held_lock+0x35/0x130 [ 89.522264][ T9698] ? validate_linkmsg+0x4be/0x7d0 [ 89.527275][ T9698] ? lock_downgrade+0x920/0x920 [ 89.532119][ T9698] ? __kasan_check_read+0x11/0x20 [ 89.537315][ T9698] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 89.543560][ T9698] __rtnl_newlink+0xdd1/0x1790 [ 89.548323][ T9698] ? lock_downgrade+0x920/0x920 [ 89.553170][ T9698] ? __check_heap_object+0x93/0xb3 [ 89.558273][ T9698] ? rtnl_link_unregister+0x250/0x250 [ 89.563674][ T9698] ? is_bpf_image_address+0x1da/0x290 [ 89.569039][ T9698] ? __kernel_text_address+0xd/0x40 [ 89.574232][ T9698] ? unwind_get_return_address+0x61/0xa0 [ 89.579857][ T9698] ? profile_setup.cold+0xbb/0xbb [ 89.584865][ T9698] ? arch_stack_walk+0x97/0xf0 [ 89.589627][ T9698] ? stack_trace_save+0x8f/0xc0 [ 89.594471][ T9698] ? stack_trace_consume_entry+0x170/0x170 [ 89.600381][ T9698] ? is_bpf_image_address+0x1b8/0x290 [ 89.605756][ T9698] ? save_stack+0x5c/0x90 [ 89.610076][ T9698] ? save_stack+0x23/0x90 [ 89.614391][ T9698] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 89.620214][ T9698] ? rtnl_newlink+0x4b/0xa0 [ 89.624710][ T9698] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 89.630342][ T9698] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 89.636324][ T9698] ? __kasan_kmalloc.constprop.0+0x30/0xe0 [ 89.642114][ T9698] ? kmem_cache_alloc_trace+0x397/0x790 [ 89.647653][ T9698] rtnl_newlink+0x69/0xa0 [ 89.651981][ T9698] ? __rtnl_newlink+0x1790/0x1790 [ 89.657006][ T9698] rtnetlink_rcv_msg+0x45e/0xaf0 [ 89.661935][ T9698] ? rtnl_bridge_getlink+0x910/0x910 [ 89.667391][ T9698] ? lock_downgrade+0x920/0x920 [ 89.672254][ T9698] ? netlink_deliver_tap+0x226/0xbf0 [ 89.677537][ T9698] ? find_held_lock+0x35/0x130 [ 89.682298][ T9698] netlink_rcv_skb+0x177/0x450 [ 89.687046][ T9698] ? rtnl_bridge_getlink+0x910/0x910 [ 89.692322][ T9698] ? netlink_ack+0xb50/0xb50 [ 89.696908][ T9698] ? __kasan_check_read+0x11/0x20 [ 89.701927][ T9698] ? netlink_deliver_tap+0x248/0xbf0 [ 89.707207][ T9698] rtnetlink_rcv+0x1d/0x30 [ 89.711606][ T9698] netlink_unicast+0x59e/0x7e0 [ 89.717051][ T9698] ? netlink_attachskb+0x870/0x870 [ 89.722142][ T9698] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 89.727836][ T9698] ? __check_object_size+0x3d/0x437 [ 89.733020][ T9698] netlink_sendmsg+0x91c/0xea0 [ 89.737781][ T9698] ? netlink_unicast+0x7e0/0x7e0 [ 89.742744][ T9698] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 89.748284][ T9698] ? apparmor_socket_sendmsg+0x2a/0x30 [ 89.753771][ T9698] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 89.760142][ T9698] ? security_socket_sendmsg+0x8d/0xc0 [ 89.766199][ T9698] ? netlink_unicast+0x7e0/0x7e0 [ 89.771192][ T9698] sock_sendmsg+0xd7/0x130 [ 89.775588][ T9698] ____sys_sendmsg+0x753/0x880 [ 89.780356][ T9698] ? kernel_sendmsg+0x50/0x50 [ 89.785053][ T9698] ___sys_sendmsg+0x100/0x170 [ 89.789723][ T9698] ? sendmsg_copy_msghdr+0x70/0x70 [ 89.794841][ T9698] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 89.800895][ T9698] ? prep_transhuge_page+0xa0/0xa0 [ 89.806006][ T9698] ? do_page_fault+0x579/0x12e1 [ 89.810840][ T9698] ? find_held_lock+0x35/0x130 [ 89.815595][ T9698] ? do_page_fault+0x579/0x12e1 [ 89.820443][ T9698] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 89.826681][ T9698] ? __fget_light+0x1ad/0x270 [ 89.831355][ T9698] ? __fdget+0x1b/0x20 [ 89.835417][ T9698] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 89.841668][ T9698] __sys_sendmsg+0x105/0x1d0 [ 89.846246][ T9698] ? __sys_sendmsg_sock+0xc0/0xc0 [ 89.851274][ T9698] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 89.856736][ T9698] ? do_syscall_64+0x26/0x790 [ 89.861440][ T9698] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.867616][ T9698] ? do_syscall_64+0x26/0x790 [ 89.872282][ T9698] __x64_sys_sendmsg+0x78/0xb0 [ 89.877042][ T9698] do_syscall_64+0xfa/0x790 [ 89.881579][ T9698] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.887486][ T9698] RIP: 0033:0x4402e9 [ 89.891371][ T9698] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 89.910962][ T9698] RSP: 002b:00007fffd62fbcf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 89.919487][ T9698] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402e9 [ 89.927552][ T9698] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 89.935509][ T9698] RBP: 00000000006ca018 R08: 0000000000000008 R09: 00000000004002c8 [ 89.943466][ T9698] R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000401b70 [ 89.951427][ T9698] R13: 0000000000401c00 R14: 0000000000000000 R15: 0000000000000000 [ 89.959428][ T9698] Modules linked in: [ 89.983844][ T9698] ---[ end trace cfa7664b8fdcdff3 ]--- [ 89.989359][ T9698] RIP: 0010:inet6_set_link_af+0x66e/0xae0 [ 89.995110][ T9698] Code: 38 d0 7f 08 84 c0 0f 85 20 03 00 00 48 8d bb b0 02 00 00 45 0f b6 64 24 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1a 03 00 00 44 89 a3 b0 02 00 [ 90.014731][ T9698] RSP: 0018:ffffc90005b06d40 EFLAGS: 00010206 [ 90.020801][ T9698] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff86df39a6 [ 90.028946][ T9698] RDX: 0000000000000056 RSI: ffffffff86df3e74 RDI: 00000000000002b0 [ 90.036933][ T9698] RBP: ffffc90005b06e70 R08: ffff8880a2ac0380 R09: ffffc90005b06db0 [ 90.044986][ T9698] R10: fffff52000b60dbe R11: ffffc90005b06df7 R12: 0000000000000000 [ 90.052960][ T9698] R13: 0000000000000000 R14: ffff8880a1fcc424 R15: dffffc0000000000 [ 90.061252][ T9698] FS: 0000000000c46880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 90.070238][ T9698] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.076897][ T9698] CR2: 0000000020000004 CR3: 000000009e4ac000 CR4: 00000000001406e0 [ 90.084895][ T9698] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.092858][ T9698] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.100862][ T9698] Kernel panic - not syncing: Fatal exception [ 90.108249][ T9698] Kernel Offset: disabled [ 90.112602][ T9698] Rebooting in 86400 seconds..