program: syz_open_dev$cec(&(0x7f0000000000), 0x0, 0x2) r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x42, 0x0) write$dsp(r0, &(0x7f0000000200)='m', 0x1) r1 = perf_event_open(&(0x7f0000002bc0)={0x2, 0x80, 0x4b, 0x1, 0x0, 0x0, 0x0, 0x1, 0x4879a, 0x16, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, @perf_config_ext={0x2}, 0x100ed, 0x4, 0x0, 0x0, 0x7, 0x400003, 0x0, 0x0, 0x0, 0x0, 0x4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x2) mmap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x0, 0x13, r1, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)) (async) r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000580)=@base={0xf, 0x4, 0x8, 0xa4}, 0x48) bpf$MAP_LOOKUP_ELEM(0x1, &(0x7f00000003c0)={r2, &(0x7f0000001d40), 0x0}, 0x20) (async) r3 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x100, 0x0) socket$nl_rdma(0x10, 0x3, 0x14) (async) r4 = ioctl$KVM_CREATE_VM(r3, 0xae01, 0x0) r5 = socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r5, 0x8933, &(0x7f00000002c0)={'wlan0\x00', 0x0}) (async) bpf$BPF_BTF_GET_FD_BY_ID(0x13, &(0x7f0000000300), 0x4) (async) r8 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000300), 0x0, 0x0) ioctl$TIOCSETD(r8, 0x5423, &(0x7f00000000c0)=0xf) (async) r9 = fcntl$dupfd(r8, 0x0, r8) ioctl$TCFLSH(r9, 0x400455c8, 0x1) (async) ioctl$TIOCSETD(r9, 0x5412, &(0x7f0000000140)=0xffffffc0) r10 = bpf$MAP_CREATE(0x0, &(0x7f0000000400)=@base={0x1, 0x3, 0x5, 0x3, 0xc1, 0xffffffffffffffff, 0x1ff}, 0x50) bpf$MAP_UPDATE_BATCH(0x1a, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040), &(0x7f0000000100), 0x3f, r10}, 0x38) (async) bpf$MAP_GET_NEXT_KEY(0x4, &(0x7f00000002c0)={r10, &(0x7f0000000200)="b3", &(0x7f0000000280)=""/14}, 0x20) (async) sendmsg$NL80211_CMD_FRAME(r5, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000640)={&(0x7f0000009e40)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010000000000000000003b00000008000300", @ANYRES32=r7, @ANYBLOB="2e003300d0000000080211000001080211000000505050505050000425", @ANYRES64=r4], 0x4c}}, 0x0) r11 = syz_open_dev$sndctrl(&(0x7f0000000040), 0x0, 0x142) ioctl$SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE(r11, 0x40045532, &(0x7f0000000100)) (async) syz_open_dev$sndpcmp(&(0x7f00000001c0), 0x0, 0xa2c65) (async) r12 = socket$nl_generic(0x10, 0x3, 0x10) (async) r13 = syz_genetlink_get_family_id$tipc(&(0x7f00000000c0), 0xffffffffffffffff) sendmsg$TIPC_CMD_SET_NODE_ADDR(r12, &(0x7f0000000280)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000240)={&(0x7f0000000140)={0x24, r13, 0x800, 0x70bd2c, 0x25dfdbff, {{}, {}, {0x8, 0x11, 0x800}}, ["", "", "", "", "", "", "", ""]}, 0x24}, 0x1, 0x0, 0x0, 0x815}, 0x20000050) [ 69.036357][ T4707] Bluetooth: hci0: command tx timeout [ 69.098295][ T5359] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000021: 0000 [#1] SMP KASAN NOPTI [ 69.104528][ T5359] KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f] [ 69.108643][ T5359] CPU: 0 UID: 0 PID: 5359 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 69.112547][ T5359] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 69.117072][ T5359] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 69.119395][ T5359] 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 94 6f b8 f9 49 8b 1f 31 ff 48 89 [ 69.127391][ T5359] RSP: 0018:ffffc9000f4bfc00 EFLAGS: 00010206 [ 69.129909][ T5359] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 69.133077][ T5359] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 69.136237][ T5359] RBP: ffffc9000f4bfd60 R08: ffff8880401d481f R09: 1ffff1100803a903 [ 69.139653][ T5359] R10: dffffc0000000000 R11: ffffffff886c4d60 R12: 0000000000000001 [ 69.142746][ T5359] R13: ffffc9000f4bfe00 R14: dffffc0000000000 R15: 0000000000000108 [ 69.146071][ T5359] FS: 00007f85375d46c0(0000) GS:ffff88808d00a000(0000) knlGS:0000000000000000 [ 69.149770][ T5359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.152409][ T5359] CR2: 00007f85375f3fb8 CR3: 0000000042d6e000 CR4: 0000000000352ef0 [ 69.155065][ T5359] Call Trace: [ 69.156347][ T5359] [ 69.157527][ T5359] ? __pfx_bcsp_recv+0x10/0x10 [ 69.159478][ T5359] ? rcu_read_lock_any_held+0xb3/0x120 [ 69.161749][ T5359] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 69.164267][ T5359] ? tty_audit_push+0x7c/0x250 [ 69.166312][ T5359] hci_uart_tty_receive+0x194/0x220 [ 69.168548][ T5359] ? __pfx_hci_uart_tty_receive+0x10/0x10 [ 69.170979][ T5359] tiocsti+0x239/0x2c0 [ 69.172693][ T5359] ? __pfx_tiocsti+0x10/0x10 [ 69.174613][ T5359] ? __fget_files+0x2a/0x420 [ 69.176374][ T5359] ? __fget_files+0x3a0/0x420 [ 69.178398][ T5359] ? __fget_files+0x2a/0x420 [ 69.180372][ T5359] tty_ioctl+0x626/0xde0 [ 69.182337][ T5359] ? __pfx_tty_ioctl+0x10/0x10 [ 69.184373][ T5359] __se_sys_ioctl+0xf9/0x170 [ 69.186274][ T5359] do_syscall_64+0xfa/0x3b0 [ 69.188190][ T5359] ? lockdep_hardirqs_on+0x9c/0x150 [ 69.190384][ T5359] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.192895][ T5359] ? clear_bhb_loop+0x60/0xb0 [ 69.194818][ T5359] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.197302][ T5359] RIP: 0033:0x7f853b18eba9 [ 69.199214][ T5359] 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 [ 69.206923][ T5359] RSP: 002b:00007f85375d4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 69.210334][ T5359] RAX: ffffffffffffffda RBX: 00007f853b3d6090 RCX: 00007f853b18eba9 [ 69.213441][ T5359] RDX: 0000200000000140 RSI: 0000000000005412 RDI: 000000000000000e [ 69.216647][ T5359] RBP: 00007f853b211e19 R08: 0000000000000000 R09: 0000000000000000 [ 69.219844][ T5359] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.222978][ T5359] R13: 00007f853b3d6128 R14: 00007f853b3d6090 R15: 00007ffef27ad858 [ 69.226249][ T5359] [ 69.227532][ T5359] Modules linked in: [ 69.229820][ T5359] ---[ end trace 0000000000000000 ]--- [ 69.246050][ T5359] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 69.248241][ T5359] 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 94 6f b8 f9 49 8b 1f 31 ff 48 89 [ 69.257498][ T5359] RSP: 0018:ffffc9000f4bfc00 EFLAGS: 00010206 [ 69.260108][ T5359] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 69.263915][ T5359] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 69.268261][ T5359] RBP: ffffc9000f4bfd60 R08: ffff8880401d481f R09: 1ffff1100803a903 [ 69.271679][ T5359] R10: dffffc0000000000 R11: ffffffff886c4d60 R12: 0000000000000001 [ 69.275692][ T5359] R13: ffffc9000f4bfe00 R14: dffffc0000000000 R15: 0000000000000108 [ 69.279419][ T5359] FS: 00007f85375d46c0(0000) GS:ffff88808d00a000(0000) knlGS:0000000000000000 [ 69.283283][ T5359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.286662][ T5359] CR2: 00007ffef27ace80 CR3: 0000000042d6e000 CR4: 0000000000352ef0 [ 69.290240][ T5359] Kernel panic - not syncing: Fatal exception [ 69.293234][ T5359] Kernel Offset: disabled [ 69.295131][ T5359] Rebooting in 86400 seconds..