program: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xf) (async) r1 = fcntl$dupfd(r0, 0x0, r0) write$P9_RLCREATE(r1, &(0x7f0000000300)={0x18, 0xf, 0x1, {{0x4, 0x4}, 0x11ca}}, 0x18) (async) ioctl$TCFLSH(r1, 0x400455c8, 0x1) (async) ioctl$TIOCSTI(r1, 0x5412, &(0x7f0000000040)=0xff) ioctl$TIOCSTI(r1, 0x5412, &(0x7f0000000340)) (async) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='net_prio.prioidx\x00', 0x275a, 0x0) write$binfmt_script(r2, &(0x7f0000000180), 0xfefc) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1000004, 0x10012, r2, 0x0) ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000180)=0x40) (async) ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000240)) (async) syz_emit_ethernet(0x39, &(0x7f0000000140)={@multicast, @remote, @void, {@llc={0x4, {@snap={0x1, 0x0, "daa4", "7d0ef0", 0x1c, "cc43f1d6a977dc8b4a23d7d72e67ac9bcbf6c4446834834383bc7ce2b5e67336ba9e"}}}}}, &(0x7f0000000200)={0x1, 0x3, [0xee9, 0x82a, 0x738, 0x567]}) (async) ioctl$TIOCSTI(r1, 0x5412, &(0x7f00000001c0)) (async) r3 = syz_open_dev$ttys(0xc, 0x2, 0x1) ioctl$TIOCSTI(r3, 0x5412, &(0x7f0000000380)=0x14) (async) r4 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r4, &(0x7f0000001240)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000280)={0x60, 0x2, 0x6, 0x5, 0xa, 0x0, {}, [@IPSET_ATTR_PROTOCOL={0x5}, @IPSET_ATTR_TYPENAME={0x10, 0x3, 'bitmap:port\x00'}, @IPSET_ATTR_SETNAME={0x9, 0x2, 'syz0\x00'}, @IPSET_ATTR_FAMILY={0x5, 0x5, 0x5}, @IPSET_ATTR_PROTOCOL={0x5, 0x1, 0x6}, @IPSET_ATTR_SETNAME={0x9, 0x2, 'syz2\x00'}, @IPSET_ATTR_TYPENAME={0xc, 0x3, 'hash:ip\x00'}]}, 0x60}}, 0x0) (async) r5 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_TEST(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000003c0)={0xfffffffffffffc74, 0xb, 0x6, 0x5, 0x0, 0x0, {}, [@IPSET_ATTR_ADT={0x0, 0x8, 0x0, 0x1, [{0x0, 0x7, 0x0, 0x1, @IPSET_ATTR_IP_TO={0x0, 0x2, 0x0, 0x1, @IPSET_ATTR_IPADDR_IPV6={0x0, 0x2, 0x1, 0x0, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}}}]}, @IPSET_ATTR_LINENO={0x0, 0x9, 0x1, 0x0, 0x2}, @IPSET_ATTR_DATA={0x4}]}, 0x2c}}, 0x0) [ 76.067275][ T4701] Bluetooth: hci0: command tx timeout [ 76.125638][ T5354] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000021: 0000 [#1] SMP KASAN NOPTI [ 76.130743][ T5354] KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f] [ 76.134455][ T5354] CPU: 0 UID: 0 PID: 5354 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.138404][ T5354] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.143076][ T5354] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 76.145471][ T5354] 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 64 e6 b8 f9 49 8b 1f 31 ff 48 89 [ 76.154249][ T5354] RSP: 0018:ffffc9000d4a7c00 EFLAGS: 00010206 [ 76.156791][ T5354] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 76.160111][ T5354] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 76.163302][ T5354] RBP: ffffc9000d4a7d60 R08: ffff88803fe9101f R09: 1ffff11007fd2203 [ 76.166508][ T5354] R10: dffffc0000000000 R11: ffffffff886bc040 R12: 0000000000000001 [ 76.169894][ T5354] R13: ffffc9000d4a7e00 R14: dffffc0000000000 R15: 0000000000000108 [ 76.173290][ T5354] FS: 00007fb20ee406c0(0000) GS:ffff88808d20f000(0000) knlGS:0000000000000000 [ 76.177119][ T5354] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.179868][ T5354] CR2: 00007fb20ee3ffc8 CR3: 0000000043f29000 CR4: 0000000000352ef0 [ 76.183379][ T5354] Call Trace: [ 76.184876][ T5354] [ 76.186207][ T5354] ? __pfx_bcsp_recv+0x10/0x10 [ 76.188329][ T5354] ? rcu_read_lock_any_held+0xb3/0x120 [ 76.190921][ T5354] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 76.193474][ T5354] ? tty_audit_push+0x7c/0x250 [ 76.195596][ T5354] hci_uart_tty_receive+0x191/0x220 [ 76.197947][ T5354] ? __pfx_hci_uart_tty_receive+0x10/0x10 [ 76.200493][ T5354] tiocsti+0x239/0x2c0 [ 76.202311][ T5354] ? __pfx_tiocsti+0x10/0x10 [ 76.204377][ T5354] ? __fget_files+0x2a/0x420 [ 76.206425][ T5354] ? __fget_files+0x3a0/0x420 [ 76.208544][ T5354] ? __fget_files+0x2a/0x420 [ 76.210373][ T5354] tty_ioctl+0x626/0xde0 [ 76.212128][ T5354] ? __pfx_tty_ioctl+0x10/0x10 [ 76.214084][ T5354] __se_sys_ioctl+0xf9/0x170 [ 76.215751][ T5354] do_syscall_64+0xfa/0x3b0 [ 76.217765][ T5354] ? lockdep_hardirqs_on+0x9c/0x150 [ 76.219991][ T5354] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.222560][ T5354] ? clear_bhb_loop+0x60/0xb0 [ 76.224387][ T5354] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.226680][ T5354] RIP: 0033:0x7fb20df8ebe9 [ 76.228439][ T5354] 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 [ 76.236291][ T5354] RSP: 002b:00007fb20ee40038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 76.239778][ T5354] RAX: ffffffffffffffda RBX: 00007fb20e1b6090 RCX: 00007fb20df8ebe9 [ 76.243133][ T5354] RDX: 0000200000000040 RSI: 0000000000005412 RDI: 0000000000000004 [ 76.246274][ T5354] RBP: 00007fb20e011e19 R08: 0000000000000000 R09: 0000000000000000 [ 76.249278][ T5354] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.252476][ T5354] R13: 00007fb20e1b6128 R14: 00007fb20e1b6090 R15: 00007ffd3f0d0218 [ 76.255972][ T5354] [ 76.257339][ T5354] Modules linked in: [ 76.259491][ T5354] ---[ end trace 0000000000000000 ]--- [ 76.281629][ T5354] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 76.283930][ T5354] 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 64 e6 b8 f9 49 8b 1f 31 ff 48 89 [ 76.294122][ T5354] RSP: 0018:ffffc9000d4a7c00 EFLAGS: 00010206 [ 76.296737][ T5354] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 76.299969][ T5354] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 76.303595][ T5354] RBP: ffffc9000d4a7d60 R08: ffff88803fe9101f R09: 1ffff11007fd2203 [ 76.307109][ T5354] R10: dffffc0000000000 R11: ffffffff886bc040 R12: 0000000000000001 [ 76.310514][ T5354] R13: ffffc9000d4a7e00 R14: dffffc0000000000 R15: 0000000000000108 [ 76.314494][ T5354] FS: 00007fb20ee406c0(0000) GS:ffff88808d20f000(0000) knlGS:0000000000000000 [ 76.318263][ T5354] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.322482][ T5354] CR2: 00007fb20ee3ffc8 CR3: 0000000043f29000 CR4: 0000000000352ef0 [ 76.326021][ T5354] Kernel panic - not syncing: Fatal exception [ 76.329146][ T5354] Kernel Offset: disabled [ 76.331119][ T5354] Rebooting in 86400 seconds..