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) [ 85.817164][ T5348] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI [ 85.822445][ T5348] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 85.826338][ T5348] CPU: 0 UID: 0 PID: 5348 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 85.830130][ T5348] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.834677][ T5348] RIP: 0010:handshake_complete+0x36/0x350 [ 85.838852][ T5348] 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 [ 85.847101][ T5348] RSP: 0018:ffffc9000d597320 EFLAGS: 00010206 [ 85.849972][ T5348] RAX: 0000000000000005 RBX: 0000000000000028 RCX: 0000000000100000 [ 85.853947][ T5348] RDX: ffffc90020001000 RSI: 0000000000000202 RDI: 0000000000000203 [ 85.857352][ T5348] RBP: 00000000fffffffb R08: ffff88804232de03 R09: 1ffff11008465bc0 [ 85.860691][ T5348] R10: dffffc0000000000 R11: ffffed1008465bc1 R12: ffff888011af4bd0 [ 85.864131][ T5348] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000000 [ 85.867490][ T5348] FS: 00007ff2301876c0(0000) GS:ffff88808d6ba000(0000) knlGS:0000000000000000 [ 85.871230][ T5348] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.874093][ T5348] CR2: 0000200000000000 CR3: 000000004220c000 CR4: 0000000000352ef0 [ 85.877440][ T5348] Call Trace: [ 85.878924][ T5348] [ 85.880293][ T5348] handshake_nl_accept_doit+0x3c9/0x7f0 [ 85.883195][ T5348] genl_family_rcv_msg_doit+0x215/0x300 [ 85.885671][ T5348] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 85.888256][ T5348] ? bpf_lsm_capable+0x9/0x20 [ 85.890386][ T5348] ? security_capable+0x7e/0x2e0 [ 85.893519][ T5348] genl_rcv_msg+0x60e/0x790 [ 85.895511][ T5348] ? __pfx_genl_rcv_msg+0x10/0x10 [ 85.897704][ T5348] ? __pfx_handshake_nl_accept_doit+0x10/0x10 [ 85.900388][ T5348] netlink_rcv_skb+0x208/0x470 [ 85.902902][ T5348] ? __pfx_genl_rcv_msg+0x10/0x10 [ 85.905689][ T5348] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 85.908453][ T5348] ? down_read+0x274/0x2e0 [ 85.910441][ T5348] ? genl_rcv+0xd/0x40 [ 85.912631][ T5348] genl_rcv+0x28/0x40 [ 85.914603][ T5348] netlink_unicast+0x82f/0x9e0 [ 85.916721][ T5348] ? __pfx_netlink_unicast+0x10/0x10 [ 85.918985][ T5348] ? netlink_sendmsg+0x642/0xb30 [ 85.921168][ T5348] ? skb_put+0x11b/0x210 [ 85.923040][ T5348] netlink_sendmsg+0x805/0xb30 [ 85.925245][ T5348] ? __pfx_netlink_sendmsg+0x10/0x10 [ 85.927605][ T5348] ? aa_sock_msg_perm+0xf1/0x1b0 [ 85.929926][ T5348] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 85.932042][ T5348] ? __pfx_netlink_sendmsg+0x10/0x10 [ 85.934132][ T5348] __sock_sendmsg+0x21c/0x270 [ 85.935992][ T5348] ____sys_sendmsg+0x505/0x820 [ 85.937912][ T5348] ? __pfx_____sys_sendmsg+0x10/0x10 [ 85.940085][ T5348] ? import_iovec+0x74/0xa0 [ 85.941846][ T5348] ___sys_sendmsg+0x21f/0x2a0 [ 85.943778][ T5348] ? __pfx____sys_sendmsg+0x10/0x10 [ 85.945836][ T5348] ? __fget_files+0x2a/0x420 [ 85.947863][ T5348] ? __fget_files+0x3a0/0x420 [ 85.949972][ T5348] __x64_sys_sendmsg+0x19b/0x260 [ 85.952128][ T5348] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 85.954625][ T5348] ? do_syscall_64+0xbe/0xf80 [ 85.956750][ T5348] do_syscall_64+0xfa/0xf80 [ 85.958686][ T5348] ? lockdep_hardirqs_on+0x98/0x140 [ 85.961009][ T5348] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.963986][ T5348] ? clear_bhb_loop+0x60/0xb0 [ 85.966111][ T5348] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.968754][ T5348] RIP: 0033:0x7ff22f38f7c9 [ 85.970688][ T5348] 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 [ 85.978830][ T5348] RSP: 002b:00007ff230187038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 85.982481][ T5348] RAX: ffffffffffffffda RBX: 00007ff22f5e5fa0 RCX: 00007ff22f38f7c9 [ 85.986568][ T5348] RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000003 [ 85.991008][ T5348] RBP: 00007ff22f413f91 R08: 0000000000000000 R09: 0000000000000000 [ 85.995205][ T5348] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.998635][ T5348] R13: 00007ff22f5e6038 R14: 00007ff22f5e5fa0 R15: 00007fff40776c38 [ 86.007223][ T5348] [ 86.008632][ T5348] Modules linked in: [ 86.026232][ T5348] ---[ end trace 0000000000000000 ]--- [ 86.060018][ T46] Bluetooth: hci0: command tx timeout [ 86.070661][ T5348] RIP: 0010:handshake_complete+0x36/0x350 [ 86.073725][ T5348] 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 [ 86.081376][ T5348] RSP: 0018:ffffc9000d597320 EFLAGS: 00010206 [ 86.084776][ T5348] RAX: 0000000000000005 RBX: 0000000000000028 RCX: 0000000000100000 [ 86.088496][ T5348] RDX: ffffc90020001000 RSI: 0000000000000202 RDI: 0000000000000203 [ 86.091770][ T5348] RBP: 00000000fffffffb R08: ffff88804232de03 R09: 1ffff11008465bc0 [ 86.097605][ T5348] R10: dffffc0000000000 R11: ffffed1008465bc1 R12: ffff888011af4bd0 [ 86.100947][ T5348] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000000 [ 86.106433][ T5348] FS: 00007ff2301876c0(0000) GS:ffff88808d6ba000(0000) knlGS:0000000000000000 [ 86.111674][ T5348] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.116695][ T5348] CR2: 0000200000000000 CR3: 000000004220c000 CR4: 0000000000352ef0 [ 86.119954][ T5348] Kernel panic - not syncing: Fatal exception [ 86.122590][ T5348] Kernel Offset: disabled [ 86.124447][ T5348] Rebooting in 86400 seconds..