program: r0 = bpf$MAP_CREATE_TAIL_CALL(0x0, &(0x7f0000000740)={0x3, 0x4, 0x4, 0xa, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000380)={0x18, 0x1c, &(0x7f0000000000)=@ringbuf={{0x18, 0x0, 0x0, 0x0, 0xffffff5e, 0x0, 0x0, 0x0, 0x1ff}, {{0x18, 0x1, 0x1, 0x0, 0x1}}, {}, [@generic={0x2, 0x5, 0x8, 0x6, 0x10000}, @btf_id={0x18, 0x6, 0x3, 0x0, 0x5}, @printk={@u, {}, {}, {}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x5b84}}, @initr0={0x18, 0x0, 0x0, 0x0, 0xbba, 0x0, 0x0, 0x0, 0x101}], {{}, {0x7, 0x0, 0xb, 0x2, 0x0, 0x0, 0x2}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f0000000100)='GPL\x00', 0x82e, 0x8f, &(0x7f0000000140)=""/143, 0x41100, 0x40, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000200)={0x1, 0x1}, 0x8, 0x10, &(0x7f0000000280)={0x5, 0x1, 0x80000001, 0x6}, 0x10, 0x0, 0x0, 0x8, &(0x7f00000002c0)=[r0, r0], &(0x7f0000000300)=[{0x3, 0x1, 0x8, 0x9}, {0x2, 0x2, 0x2, 0x3}, {0x3, 0x4, 0xb, 0x5}, {0x5, 0x2, 0x9, 0x3}, {0x2, 0x4, 0x2, 0xa}, {0x2, 0x1, 0x4, 0x4}, {0x3, 0x4, 0x6, 0x4}, {0x4, 0x4, 0xb, 0xb}], 0x10, 0x5}, 0x94) r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000300), 0x0, 0x0) ioctl$TIOCSETD(r2, 0x5423, &(0x7f00000000c0)=0xf) (async) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$TCFLSH(r3, 0x400455c8, 0x1) (async) ioctl$TIOCSTI(r3, 0x5412, &(0x7f0000000340)=0x9) ioctl$sock_ipv6_tunnel_SIOCGET6RD(0xffffffffffffffff, 0x89f8, &(0x7f0000000580)={'syztnl0\x00', &(0x7f0000000500)={'tunl0\x00', 0x0, 0x10, 0x8000, 0x5, 0x25, {{0x12, 0x4, 0x0, 0x2c, 0x48, 0x66, 0x0, 0x1, 0x2f, 0x0, @private=0xa010100, @multicast2, {[@ra={0x94, 0x4, 0x1}, @lsrr={0x83, 0xf, 0x43, [@multicast1, @empty, @multicast1]}, @end, @generic={0x88, 0x9, "203a749edb152d"}, @timestamp_prespec={0x44, 0x14, 0x75, 0x3, 0xd, [{@broadcast, 0x200}, {@private=0xa010102, 0x9}]}]}}}}}) bpf$PROG_LOAD(0x5, &(0x7f0000000440)={0x8, 0x3, &(0x7f0000000240)=@raw=[@ldst={0x3, 0x1, 0x6, 0x8, 0x0, 0x6, 0x1}, @map_val={0x18, 0x3, 0x2, 0x0, 0x1, 0x0, 0x0, 0x0, 0x2}], &(0x7f0000000680)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', r4, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, r1, 0x0, 0x0, 0x0, 0x0}, 0x94) [ 75.354147][ T5338] Bluetooth: hci0: command tx timeout [ 75.413037][ T5358] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000021: 0000 [#1] SMP KASAN NOPTI [ 75.417487][ T5358] KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f] [ 75.421746][ T5358] CPU: 0 UID: 0 PID: 5358 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 75.425620][ T5358] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.429700][ T5358] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 75.431689][ T5358] Code: 89 4c 24 40 48 89 54 24 28 48 c1 ea 03 48 89 54 24 68 48 89 5c 24 20 48 c1 eb 03 48 89 5c 24 60 4c 89 7c 24 38 48 8b 44 24 58 <42> 80 3c 30 00 74 08 4c 89 ff e8 54 ad b8 f9 49 8b 1f 31 ff 48 89 [ 75.439140][ T5358] RSP: 0018:ffffc9000d4cfc00 EFLAGS: 00010206 [ 75.441506][ T5358] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 75.444608][ T5358] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 75.448137][ T5358] RBP: ffffc9000d4cfd60 R08: ffff88803ff0d41f R09: 1ffff11007fe1a83 [ 75.451587][ T5358] R10: dffffc0000000000 R11: ffffffff886bffa0 R12: 0000000000000001 [ 75.454901][ T5358] R13: ffffc9000d4cfe00 R14: dffffc0000000000 R15: 0000000000000108 [ 75.458172][ T5358] FS: 00007fa97528c6c0(0000) GS:ffff88808d20c000(0000) knlGS:0000000000000000 [ 75.461934][ T5358] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.464719][ T5358] CR2: 00007fa97528bfc8 CR3: 0000000042e2a000 CR4: 0000000000352ef0 [ 75.468113][ T5358] Call Trace: [ 75.469456][ T5358] [ 75.470763][ T5358] ? __pfx_bcsp_recv+0x10/0x10 [ 75.472786][ T5358] ? rcu_read_lock_any_held+0xb3/0x120 [ 75.475227][ T5358] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 75.477815][ T5358] ? tty_audit_push+0x7c/0x250 [ 75.479947][ T5358] hci_uart_tty_receive+0x194/0x220 [ 75.482284][ T5358] ? __pfx_hci_uart_tty_receive+0x10/0x10 [ 75.484898][ T5358] tiocsti+0x239/0x2c0 [ 75.486748][ T5358] ? __pfx_tiocsti+0x10/0x10 [ 75.488827][ T5358] ? __fget_files+0x2a/0x420 [ 75.490858][ T5358] ? __fget_files+0x3a0/0x420 [ 75.492793][ T5358] ? __fget_files+0x2a/0x420 [ 75.494685][ T5358] tty_ioctl+0x626/0xde0 [ 75.496391][ T5358] ? __pfx_tty_ioctl+0x10/0x10 [ 75.498305][ T5358] __se_sys_ioctl+0xfc/0x170 [ 75.500191][ T5358] do_syscall_64+0xfa/0x3b0 [ 75.502091][ T5358] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.504284][ T5358] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.506604][ T5358] ? clear_bhb_loop+0x60/0xb0 [ 75.508637][ T5358] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.511163][ T5358] RIP: 0033:0x7fa97438ebe9 [ 75.513096][ T5358] 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 [ 75.521053][ T5358] RSP: 002b:00007fa97528c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 75.524388][ T5358] RAX: ffffffffffffffda RBX: 00007fa9745c6090 RCX: 00007fa97438ebe9 [ 75.527674][ T5358] RDX: 0000200000000340 RSI: 0000000000005412 RDI: 0000000000000005 [ 75.531066][ T5358] RBP: 00007fa974411e19 R08: 0000000000000000 R09: 0000000000000000 [ 75.534112][ T5358] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.537225][ T5358] R13: 00007fa9745c6128 R14: 00007fa9745c6090 R15: 00007ffe4e8e1ed8 [ 75.540561][ T5358] [ 75.542009][ T5358] Modules linked in: [ 75.544279][ T5358] ---[ end trace 0000000000000000 ]--- [ 75.580702][ T5358] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 75.584348][ T5358] Code: 89 4c 24 40 48 89 54 24 28 48 c1 ea 03 48 89 54 24 68 48 89 5c 24 20 48 c1 eb 03 48 89 5c 24 60 4c 89 7c 24 38 48 8b 44 24 58 <42> 80 3c 30 00 74 08 4c 89 ff e8 54 ad b8 f9 49 8b 1f 31 ff 48 89 [ 75.593561][ T5358] RSP: 0018:ffffc9000d4cfc00 EFLAGS: 00010206 [ 75.596394][ T5358] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 75.599940][ T5358] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 75.604666][ T5358] RBP: ffffc9000d4cfd60 R08: ffff88803ff0d41f R09: 1ffff11007fe1a83 [ 75.608180][ T5358] R10: dffffc0000000000 R11: ffffffff886bffa0 R12: 0000000000000001 [ 75.611626][ T5358] R13: ffffc9000d4cfe00 R14: dffffc0000000000 R15: 0000000000000108 [ 75.618294][ T5358] FS: 00007fa97528c6c0(0000) GS:ffff88808d20c000(0000) knlGS:0000000000000000 [ 75.622861][ T5358] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.625821][ T5358] CR2: 00007fa974598558 CR3: 0000000042e2a000 CR4: 0000000000352ef0 [ 75.629314][ T5358] Kernel panic - not syncing: Fatal exception [ 75.632260][ T5358] Kernel Offset: disabled [ 75.634443][ T5358] Rebooting in 86400 seconds..