DUID 00:04:ce:8e:a7:1a:d5:92:ad:c3:fd:35:80:c9:2b:13:ab:38 forked to background, child pid 3176 [ 27.013548][ T3177] 8021q: adding VLAN 0 to HW filter on device bond0 [ 27.024523][ T3177] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.18' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.266679][ T3594] general protection fault, probably for non-canonical address 0xdffffc0000000070: 0000 [#1] PREEMPT SMP KASAN [ 44.278426][ T3594] KASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387] [ 44.286816][ T3594] CPU: 1 PID: 3594 Comm: syz-executor210 Not tainted 5.17.0-rc8-syzkaller #0 [ 44.295555][ T3594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.305590][ T3594] RIP: 0010:llc_build_and_send_xid_pkt+0xda/0x1f0 [ 44.312012][ T3594] Code: 48 c1 ea 03 80 3c 02 00 0f 85 20 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5d 10 48 8d bb 80 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f0 00 00 00 48 8b b3 80 03 00 00 48 8d 7d 2e ba [ 44.331616][ T3594] RSP: 0018:ffffc9000387f898 EFLAGS: 00010202 [ 44.337668][ T3594] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 44.345627][ T3594] RDX: 0000000000000070 RSI: ffffffff874f28a8 RDI: 0000000000000380 [ 44.353591][ T3594] RBP: ffff88807ccda780 R08: 0000000000000000 R09: 0000000000000008 [ 44.361546][ T3594] R10: ffffffff874f9d68 R11: 0000000000000000 R12: ffff888019be2000 [ 44.369505][ T3594] R13: ffff888078e5f510 R14: 00000000000000c0 R15: 0000000000000000 [ 44.377462][ T3594] FS: 00007fae34338700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 44.386381][ T3594] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.393039][ T3594] CR2: 0000000020010038 CR3: 0000000078273000 CR4: 00000000003506e0 [ 44.401004][ T3594] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.409049][ T3594] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.417006][ T3594] Call Trace: [ 44.420280][ T3594] [ 44.423198][ T3594] llc_ui_sendmsg+0xa72/0x10d0 [ 44.427960][ T3594] ? llc_ui_connect+0xcb0/0xcb0 [ 44.432809][ T3594] ? aa_af_perm+0x230/0x230 [ 44.437495][ T3594] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 44.443732][ T3594] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 44.450004][ T3594] ? llc_ui_connect+0xcb0/0xcb0 [ 44.454844][ T3594] sock_sendmsg+0xcf/0x120 [ 44.459253][ T3594] ____sys_sendmsg+0x331/0x810 [ 44.464006][ T3594] ? kernel_sendmsg+0x50/0x50 [ 44.468668][ T3594] ? do_recvmmsg+0x6d0/0x6d0 [ 44.473270][ T3594] ___sys_sendmsg+0xf3/0x170 [ 44.477848][ T3594] ? sendmsg_copy_msghdr+0x160/0x160 [ 44.483122][ T3594] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 44.489360][ T3594] ? find_held_lock+0x2d/0x110 [ 44.494114][ T3594] ? __might_fault+0xd1/0x170 [ 44.498803][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 44.503826][ T3594] __sys_sendmmsg+0x195/0x470 [ 44.508511][ T3594] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 44.513794][ T3594] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 44.519773][ T3594] ? __context_tracking_exit+0xb8/0xe0 [ 44.525220][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 44.530061][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 44.534911][ T3594] __x64_sys_sendmmsg+0x99/0x100 [ 44.539848][ T3594] ? syscall_enter_from_user_mode+0x21/0x70 [ 44.545731][ T3594] do_syscall_64+0x35/0xb0 [ 44.550413][ T3594] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 44.556297][ T3594] RIP: 0033:0x7fae343a78d9 [ 44.560703][ T3594] 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 [ 44.580388][ T3594] RSP: 002b:00007fae34338318 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 44.588811][ T3594] RAX: ffffffffffffffda RBX: 00007fae3442f3f8 RCX: 00007fae343a78d9 [ 44.596768][ T3594] RDX: 03fffffffffffeed RSI: 0000000020001380 RDI: 0000000000000003 [ 44.604723][ T3594] RBP: 00007fae3442f3f0 R08: 00007fae34338700 R09: 0000000000000000 [ 44.612680][ T3594] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fae3442f3fc [ 44.620640][ T3594] R13: 00007ffcf379395f R14: 00007fae34338400 R15: 0000000000022000 [ 44.628606][ T3594] [ 44.631609][ T3594] Modules linked in: [ 44.635767][ T3594] ---[ end trace 0000000000000000 ]--- [ 44.641236][ T3594] RIP: 0010:llc_build_and_send_xid_pkt+0xda/0x1f0 [ 44.647715][ T3594] Code: 48 c1 ea 03 80 3c 02 00 0f 85 20 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5d 10 48 8d bb 80 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f0 00 00 00 48 8b b3 80 03 00 00 48 8d 7d 2e ba [ 44.667782][ T3594] RSP: 0018:ffffc9000387f898 EFLAGS: 00010202 [ 44.673881][ T3594] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 44.681862][ T3594] RDX: 0000000000000070 RSI: ffffffff874f28a8 RDI: 0000000000000380 [ 44.689873][ T3594] RBP: ffff88807ccda780 R08: 0000000000000000 R09: 0000000000000008 [ 44.697863][ T3594] R10: ffffffff874f9d68 R11: 0000000000000000 R12: ffff888019be2000 [ 44.705931][ T3594] R13: ffff888078e5f510 R14: 00000000000000c0 R15: 0000000000000000 [ 44.713945][ T3594] FS: 00007fae34338700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 44.722957][ T3594] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.729537][ T3594] CR2: 00007fae343e8a80 CR3: 0000000078273000 CR4: 00000000003506f0 [ 44.737580][ T3594] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.745574][ T3594] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.753563][ T3594] Kernel panic - not syncing: Fatal exception [ 44.759681][ T3594] Kernel Offset: disabled [ 44.763994][ T3594] Rebooting in 86400 seconds..