DUID 00:04:b0:7e:30:9f:4d:11:81:da:bf:2d:3d:77:4c:17:c1:ba forked to background, child pid 3176 [ 26.855352][ T3177] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.869166][ T3177] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.162' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 45.498547][ T3601] general protection fault, probably for non-canonical address 0xdffffc000000001b: 0000 [#1] PREEMPT SMP KASAN [ 45.510298][ T3601] KASAN: null-ptr-deref in range [0x00000000000000d8-0x00000000000000df] [ 45.518692][ T3601] CPU: 0 PID: 3601 Comm: syz-executor165 Not tainted 5.17.0-rc8-syzkaller #0 [ 45.527464][ T3601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.537593][ T3601] RIP: 0010:llc_ui_sendmsg+0x1ea/0x10d0 [ 45.543152][ T3601] Code: 80 3c 02 00 0f 85 50 0d 00 00 4c 8b a5 38 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 de 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 33 [ 45.562950][ T3601] RSP: 0018:ffffc900037af8c8 EFLAGS: 00010207 [ 45.569031][ T3601] RAX: dffffc0000000000 RBX: ffffc900037afd70 RCX: 0000000000000000 [ 45.576984][ T3601] RDX: 000000000000001b RSI: ffffffff874f9983 RDI: 00000000000000de [ 45.584941][ T3601] RBP: ffff888147d0a000 R08: 0000000000000000 R09: 0000000000000000 [ 45.592893][ T3601] R10: ffffffff874f9975 R11: 0000000000000000 R12: 0000000000000000 [ 45.601080][ T3601] R13: ffff888073f34818 R14: 0000000000000000 R15: 0000000000000000 [ 45.609093][ T3601] FS: 00007fc31ccc6700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 45.618020][ T3601] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.624624][ T3601] CR2: 000000002000d038 CR3: 000000001dfcf000 CR4: 00000000003506f0 [ 45.632689][ T3601] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.640729][ T3601] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.648864][ T3601] Call Trace: [ 45.652124][ T3601] [ 45.655052][ T3601] ? llc_ui_connect+0xcb0/0xcb0 [ 45.659887][ T3601] ? aa_af_perm+0x230/0x230 [ 45.664382][ T3601] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 45.670703][ T3601] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 45.676931][ T3601] ? llc_ui_connect+0xcb0/0xcb0 [ 45.681762][ T3601] sock_sendmsg+0xcf/0x120 [ 45.686177][ T3601] ____sys_sendmsg+0x331/0x810 [ 45.690934][ T3601] ? kernel_sendmsg+0x50/0x50 [ 45.695588][ T3601] ? do_recvmmsg+0x6d0/0x6d0 [ 45.700165][ T3601] ___sys_sendmsg+0xf3/0x170 [ 45.704737][ T3601] ? sendmsg_copy_msghdr+0x160/0x160 [ 45.710011][ T3601] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 45.716247][ T3601] ? find_held_lock+0x2d/0x110 [ 45.720999][ T3601] ? __might_fault+0xd1/0x170 [ 45.725663][ T3601] ? lock_downgrade+0x6e0/0x6e0 [ 45.730513][ T3601] __sys_sendmmsg+0x195/0x470 [ 45.735175][ T3601] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 45.740195][ T3601] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 45.746163][ T3601] ? __context_tracking_exit+0xb8/0xe0 [ 45.751607][ T3601] ? lock_downgrade+0x6e0/0x6e0 [ 45.756442][ T3601] ? lock_downgrade+0x6e0/0x6e0 [ 45.761279][ T3601] __x64_sys_sendmmsg+0x99/0x100 [ 45.766214][ T3601] ? syscall_enter_from_user_mode+0x21/0x70 [ 45.772111][ T3601] do_syscall_64+0x35/0xb0 [ 45.776518][ T3601] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 45.782402][ T3601] RIP: 0033:0x7fc31cd358d9 [ 45.786816][ T3601] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 45.806407][ T3601] RSP: 002b:00007fc31ccc6318 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 45.814806][ T3601] RAX: ffffffffffffffda RBX: 00007fc31cdbd3f8 RCX: 00007fc31cd358d9 [ 45.822760][ T3601] RDX: 03fffffffffffeed RSI: 0000000020001380 RDI: 0000000000000003 [ 45.830717][ T3601] RBP: 00007fc31cdbd3f0 R08: 00007fc31ccc6700 R09: 0000000000000000 [ 45.838671][ T3601] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc31cdbd3fc [ 45.846629][ T3601] R13: 00007ffe916b28af R14: 00007fc31ccc6400 R15: 0000000000022000 [ 45.854621][ T3601] [ 45.857636][ T3601] Modules linked in: [ 45.861996][ T3601] ---[ end trace 0000000000000000 ]--- [ 45.867493][ T3601] RIP: 0010:llc_ui_sendmsg+0x1ea/0x10d0 [ 45.873065][ T3601] Code: 80 3c 02 00 0f 85 50 0d 00 00 4c 8b a5 38 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 de 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 33 [ 45.892721][ T3601] RSP: 0018:ffffc900037af8c8 EFLAGS: 00010207 [ 45.898814][ T3601] RAX: dffffc0000000000 RBX: ffffc900037afd70 RCX: 0000000000000000 [ 45.906995][ T3601] RDX: 000000000000001b RSI: ffffffff874f9983 RDI: 00000000000000de [ 45.914971][ T3601] RBP: ffff888147d0a000 R08: 0000000000000000 R09: 0000000000000000 [ 45.923010][ T3601] R10: ffffffff874f9975 R11: 0000000000000000 R12: 0000000000000000 [ 45.932051][ T3601] R13: ffff888073f34818 R14: 0000000000000000 R15: 0000000000000000 [ 45.940055][ T3601] FS: 00007fc31ccc6700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 45.949035][ T3601] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.955640][ T3601] CR2: 000000002000d038 CR3: 000000001dfcf000 CR4: 00000000003506f0 [ 45.963813][ T3601] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.972045][ T3601] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.980080][ T3601] Kernel panic - not syncing: Fatal exception [ 45.986366][ T3601] Kernel Offset: disabled [ 45.990707][ T3601] Rebooting in 86400 seconds..