program: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xf) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$TCFLSH(r1, 0x400455c8, 0x2) (async) ioctl$TIOCSETD(r1, 0x5412, &(0x7f0000000140)=0xffffffc0) (async) ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000280)) (async) ioctl$TIOCSTI(r1, 0x5412, &(0x7f0000000040)) (async) ioctl$TIOCSTI(r1, 0x5412, &(0x7f0000000200)=0xff) (async) ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000180)) (async) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_generic(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000002c0)=ANY=[@ANYBLOB="200000005200010000000000000000001c0000000c00010009000000000000003e6aafc94428de223939bcbf70fe79257e143c722fba7c92de82944bb28c236066df0ce9e0e0c978410af2948b1f4ed983138c3ab2cce209777e4f484d055e8dfe1cdf16f64ea80ec42c1bf9e0657efece42a85b92ccdb40113a1044b8d81d2d75ad2e538ee18f35e4ba33623aa24c97790e4d3091c5bdc4eb88d3882375c3721469fbc53273"], 0x20}}, 0x0) ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000240)) r3 = openat$nullb(0xffffffffffffff9c, &(0x7f0000001000), 0x48882, 0x0) r4 = dup(r3) fallocate(r4, 0x11, 0x0, 0x80400) (async) r5 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000100)='fd\x00') (async) exit(0x7) r6 = open(&(0x7f0000000080)='./file1\x00', 0xe4802, 0x86) pwritev2(r6, &(0x7f0000000240)=[{&(0x7f0000000000)="85", 0x18800}], 0x14, 0x7800, 0x0, 0x3) (async) r7 = socket$nl_route(0x10, 0x3, 0x0) (async) r8 = socket(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r8, 0x8933, &(0x7f0000000080)={'bridge0\x00', 0x0}) sendmsg$nl_route(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000280)=@newlink={0x3c, 0x10, 0x44b, 0x0, 0x0, {0x7a, 0x0, 0x0, r9}, [@IFLA_LINKINFO={0x1c, 0x12, 0x0, 0x1, @bridge={{0xb}, {0xc, 0x2, 0x0, 0x1, [@IFLA_BR_VLAN_FILTERING={0x5, 0x7, 0x7}]}}}]}, 0x3c}}, 0x0) ioctl$VT_RELDISP(r0, 0x5605) (async) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000600)={0x8, 0x1c, &(0x7f0000000140)=@raw=[@kfunc={0x85, 0x0, 0x2, 0x0, 0x3}, @map_idx_val={0x18, 0x7, 0x6, 0x0, 0x10, 0x0, 0x0, 0x0, 0x400}, @map_idx_val={0x18, 0x5, 0x6, 0x0, 0xc, 0x0, 0x0, 0x0, 0x10000}, @btf_id={0x18, 0xa, 0x3, 0x0, 0x5}, @jmp={0x5, 0x1, 0x1, 0x6, 0x4, 0x40}, @snprintf={{}, {}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x100}, {}, {}, {}, {}, {}, {}, {0x18, 0x3, 0x2, 0x0, r5}}, @initr0={0x18, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0xf311}, @ringbuf_query={{0x18, 0x1, 0x1, 0x0, r6}}, @kfunc={0x85, 0x0, 0x2, 0x0, 0x4}], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', r9}, 0x94) (async) socket$inet6_icmp_raw(0xa, 0x3, 0x3a) (async) statx(r5, 0x0, 0x1000, 0x10, 0x0) bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0xa, 0x4, &(0x7f0000000040)=@framed={{0xffffffb4, 0x0, 0x0, 0x0, 0x0, 0xffffffdd, 0xa}, [@ldst={0x3, 0x2, 0x3, 0x1c10a1, 0x0, 0x21}]}, &(0x7f0000003ff6)='GPL\x00', 0x5, 0xc3, &(0x7f000000cf3d)=""/195, 0x41100, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x19, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0x10}, 0x94) [ 75.446483][ T4666] Bluetooth: hci0: command tx timeout [ 75.491014][ T5318] Oops: general protection fault, probably for non-canonical address 0xdffffc000000005f: 0000 [#1] SMP KASAN NOPTI [ 75.496341][ T5318] KASAN: null-ptr-deref in range [0x00000000000002f8-0x00000000000002ff] [ 75.499976][ T5318] CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 75.504186][ T5318] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.509828][ T5318] RIP: 0010:h5_recv+0x146/0x910 [ 75.512746][ T5318] Code: 18 48 c1 ea 03 48 89 54 24 28 48 89 d8 48 c1 e8 03 48 89 44 24 50 44 89 64 24 14 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 30 <80> 3c 01 00 74 08 4c 89 ef e8 1c fa f3 f9 4d 8b 65 00 31 ff 4c 89 [ 75.521335][ T5318] RSP: 0018:ffffc9000d4afc20 EFLAGS: 00010202 [ 75.524179][ T5318] RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f [ 75.527623][ T5318] RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000 [ 75.531200][ T5318] RBP: ffffc9000d4afd40 R08: ffff88803333741f R09: 1ffff11006666e83 [ 75.534454][ T5318] R10: dffffc0000000000 R11: ffffffff883359b0 R12: 0000000000000001 [ 75.537686][ T5318] R13: 00000000000002f8 R14: ffff888033337410 R15: ffffc9000d4afde0 [ 75.541099][ T5318] FS: 00007f54c2dd46c0(0000) GS:ffff88808d732000(0000) knlGS:0000000000000000 [ 75.545136][ T5318] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.548131][ T5318] CR2: 00007f54c2dd3fc8 CR3: 000000001c175000 CR4: 0000000000352ef0 [ 75.551564][ T5318] Call Trace: [ 75.553194][ T5318] [ 75.554503][ T5318] ? __pfx_h5_recv+0x10/0x10 [ 75.556604][ T5318] ? rcu_read_lock_any_held+0xb3/0x120 [ 75.559142][ T5318] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 75.561755][ T5318] ? tty_audit_push+0x7c/0x250 [ 75.563973][ T5318] hci_uart_tty_receive+0x194/0x220 [ 75.566369][ T5318] ? __pfx_hci_uart_tty_receive+0x10/0x10 [ 75.568963][ T5318] tiocsti+0x23c/0x2c0 [ 75.570800][ T5318] ? __pfx_tiocsti+0x10/0x10 [ 75.572961][ T5318] ? __fget_files+0x3a0/0x420 [ 75.575059][ T5318] ? __fget_files+0x2a/0x420 [ 75.577084][ T5318] tty_ioctl+0x626/0xde0 [ 75.578958][ T5318] ? __pfx_tty_ioctl+0x10/0x10 [ 75.581039][ T5318] __se_sys_ioctl+0xfc/0x170 [ 75.583078][ T5318] do_syscall_64+0xfa/0xfa0 [ 75.585006][ T5318] ? lockdep_hardirqs_on+0x9c/0x150 [ 75.587264][ T5318] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.589968][ T5318] ? clear_bhb_loop+0x60/0xb0 [ 75.592142][ T5318] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.594668][ T5318] RIP: 0033:0x7f54c698f6c9 [ 75.596702][ T5318] 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 [ 75.605077][ T5318] RSP: 002b:00007f54c2dd4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 75.608718][ T5318] RAX: ffffffffffffffda RBX: 00007f54c6be6090 RCX: 00007f54c698f6c9 [ 75.612102][ T5318] RDX: 0000200000000140 RSI: 0000000000005412 RDI: 0000000000000004 [ 75.615565][ T5318] RBP: 00007f54c6a11f91 R08: 0000000000000000 R09: 0000000000000000 [ 75.619009][ T5318] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.622379][ T5318] R13: 00007f54c6be6128 R14: 00007f54c6be6090 R15: 00007ffff84999f8 [ 75.625889][ T5318] [ 75.627270][ T5318] Modules linked in: [ 75.629548][ T5318] ---[ end trace 0000000000000000 ]--- [ 75.653661][ T5318] RIP: 0010:h5_recv+0x146/0x910 [ 75.655847][ T5318] Code: 18 48 c1 ea 03 48 89 54 24 28 48 89 d8 48 c1 e8 03 48 89 44 24 50 44 89 64 24 14 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 30 <80> 3c 01 00 74 08 4c 89 ef e8 1c fa f3 f9 4d 8b 65 00 31 ff 4c 89 [ 75.664919][ T5318] RSP: 0018:ffffc9000d4afc20 EFLAGS: 00010202 [ 75.667408][ T5318] RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f [ 75.672320][ T5318] RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000 [ 75.676182][ T5318] RBP: ffffc9000d4afd40 R08: ffff88803333741f R09: 1ffff11006666e83 [ 75.680153][ T5318] R10: dffffc0000000000 R11: ffffffff883359b0 R12: 0000000000000001 [ 75.683370][ T5318] R13: 00000000000002f8 R14: ffff888033337410 R15: ffffc9000d4afde0 [ 75.686641][ T5318] FS: 00007f54c2dd46c0(0000) GS:ffff88808d732000(0000) knlGS:0000000000000000 [ 75.690800][ T5318] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.693850][ T5318] CR2: 00007ffff8498e80 CR3: 000000001c175000 CR4: 0000000000352ef0 [ 75.697583][ T5318] Kernel panic - not syncing: Fatal exception [ 75.700567][ T5318] Kernel Offset: disabled [ 75.702521][ T5318] Rebooting in 86400 seconds..