program: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000001c0)={0x1c, 0x45, 0x9, 0x0, 0x0, {0x2}, [@typed={0x8, 0x2, 0x0, 0x0, @pid}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40000}, 0x0) [ 85.826809][ T5351] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI [ 85.832570][ T5351] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 85.836289][ T5351] CPU: 0 UID: 0 PID: 5351 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 85.840442][ T5351] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.848849][ T5351] RIP: 0010:handshake_complete+0x36/0x350 [ 85.853759][ T5351] Code: 54 53 48 83 ec 10 48 89 54 24 08 89 f5 49 89 ff 49 bd 00 00 00 00 00 fc ff df e8 b5 b6 86 f6 49 8d 5f 28 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 db c2 ed f6 48 8b 1b 4c 8d 63 30 [ 85.863159][ T5351] RSP: 0018:ffffc9000d43f320 EFLAGS: 00010206 [ 85.865789][ T5351] RAX: 0000000000000005 RBX: 0000000000000028 RCX: 0000000000100000 [ 85.869173][ T5351] RDX: ffffc9000f70a000 RSI: 0000000000000200 RDI: 0000000000000201 [ 85.872653][ T5351] RBP: 00000000fffffffb R08: ffff888011a31683 R09: 1ffff110023462d0 [ 85.876222][ T5351] R10: dffffc0000000000 R11: ffffed10023462d1 R12: ffff888032f331d0 [ 85.879478][ T5351] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000000 [ 85.882814][ T5351] FS: 00007f25160036c0(0000) GS:ffff88808d6ba000(0000) knlGS:0000000000000000 [ 85.886615][ T5351] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.889396][ T5351] CR2: 0000200000000000 CR3: 000000001f3ac000 CR4: 0000000000352ef0 [ 85.892875][ T5351] Call Trace: [ 85.894323][ T5351] [ 85.895677][ T5351] handshake_nl_accept_doit+0x3c9/0x7f0 [ 85.898141][ T5351] genl_family_rcv_msg_doit+0x215/0x300 [ 85.900572][ T5351] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 85.903283][ T5351] ? bpf_lsm_capable+0x9/0x20 [ 85.905365][ T5351] ? security_capable+0x7e/0x2e0 [ 85.907368][ T5351] genl_rcv_msg+0x60e/0x790 [ 85.909226][ T5351] ? __pfx_genl_rcv_msg+0x10/0x10 [ 85.911340][ T5351] ? __pfx_handshake_nl_accept_doit+0x10/0x10 [ 85.913898][ T5351] netlink_rcv_skb+0x208/0x470 [ 85.915920][ T5351] ? __pfx_genl_rcv_msg+0x10/0x10 [ 85.918040][ T5351] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 85.920309][ T5351] ? down_read+0x274/0x2e0 [ 85.922186][ T5351] ? genl_rcv+0xd/0x40 [ 85.923922][ T5351] genl_rcv+0x28/0x40 [ 85.925730][ T5351] netlink_unicast+0x82f/0x9e0 [ 85.927767][ T5351] ? __pfx_netlink_unicast+0x10/0x10 [ 85.929845][ T5351] ? netlink_sendmsg+0x642/0xb30 [ 85.931880][ T5351] ? skb_put+0x11b/0x210 [ 85.933633][ T5351] netlink_sendmsg+0x805/0xb30 [ 85.935556][ T5351] ? __pfx_netlink_sendmsg+0x10/0x10 [ 85.937580][ T5351] ? aa_sock_msg_perm+0xf1/0x1b0 [ 85.939655][ T5351] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 85.942089][ T5351] ? __pfx_netlink_sendmsg+0x10/0x10 [ 85.944241][ T5351] __sock_sendmsg+0x21c/0x270 [ 85.946338][ T5351] ____sys_sendmsg+0x505/0x820 [ 85.948380][ T5351] ? __pfx_____sys_sendmsg+0x10/0x10 [ 85.950682][ T5351] ? import_iovec+0x74/0xa0 [ 85.952625][ T5351] ___sys_sendmsg+0x21f/0x2a0 [ 85.954856][ T5351] ? __pfx____sys_sendmsg+0x10/0x10 [ 85.957192][ T5351] ? __fget_files+0x2a/0x420 [ 85.959099][ T5351] ? __fget_files+0x3a0/0x420 [ 85.961215][ T5351] __x64_sys_sendmsg+0x19b/0x260 [ 85.963481][ T5351] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 85.965843][ T5351] ? do_syscall_64+0xbe/0xf80 [ 85.967848][ T5351] do_syscall_64+0xfa/0xf80 [ 85.969881][ T5351] ? lockdep_hardirqs_on+0x98/0x140 [ 85.972185][ T5351] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.974796][ T5351] ? clear_bhb_loop+0x60/0xb0 [ 85.976730][ T5351] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.979445][ T5351] RIP: 0033:0x7f251518f7c9 [ 85.981304][ T5351] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 85.989538][ T5351] RSP: 002b:00007f2516003038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 85.993077][ T5351] RAX: ffffffffffffffda RBX: 00007f25153e5fa0 RCX: 00007f251518f7c9 [ 85.996411][ T5351] RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000003 [ 85.999801][ T5351] RBP: 00007f2515213f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.003996][ T5351] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.007319][ T5351] R13: 00007f25153e6038 R14: 00007f25153e5fa0 R15: 00007ffd9048b328 [ 86.010460][ T5351] [ 86.011725][ T5351] Modules linked in: [ 86.017199][ T5351] ---[ end trace 0000000000000000 ]--- [ 86.043632][ T5327] Bluetooth: hci0: command tx timeout [ 86.047057][ T5351] RIP: 0010:handshake_complete+0x36/0x350 [ 86.050524][ T5351] Code: 54 53 48 83 ec 10 48 89 54 24 08 89 f5 49 89 ff 49 bd 00 00 00 00 00 fc ff df e8 b5 b6 86 f6 49 8d 5f 28 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 db c2 ed f6 48 8b 1b 4c 8d 63 30 [ 86.060674][ T5351] RSP: 0018:ffffc9000d43f320 EFLAGS: 00010206 [ 86.063341][ T5351] RAX: 0000000000000005 RBX: 0000000000000028 RCX: 0000000000100000 [ 86.067362][ T5351] RDX: ffffc9000f70a000 RSI: 0000000000000200 RDI: 0000000000000201 [ 86.070895][ T5351] RBP: 00000000fffffffb R08: ffff888011a31683 R09: 1ffff110023462d0 [ 86.074426][ T5351] R10: dffffc0000000000 R11: ffffed10023462d1 R12: ffff888032f331d0 [ 86.078366][ T5351] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000000 [ 86.081862][ T5351] FS: 00007f25160036c0(0000) GS:ffff88808d6ba000(0000) knlGS:0000000000000000 [ 86.085683][ T5351] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.089022][ T5351] CR2: 0000200000000000 CR3: 000000001f3ac000 CR4: 0000000000352ef0 [ 86.092525][ T5351] Kernel panic - not syncing: Fatal exception [ 86.095480][ T5351] Kernel Offset: disabled [ 86.097361][ T5351] Rebooting in 86400 seconds..