program: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bridge_slave_0\x00', 0x0}) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) ioctl$TIOCSETD(r3, 0x5423, &(0x7f00000000c0)=0xf) r4 = fcntl$dupfd(r3, 0x0, r3) ioctl$TCFLSH(r4, 0x400455c8, 0x2) (async) ioctl$TIOCSETD(r4, 0x5412, &(0x7f0000000140)=0xffffffc0) ioctl$TIOCSTI(r3, 0x5412, &(0x7f0000000280)) (async) ioctl$TIOCSTI(r4, 0x5412, &(0x7f0000000040)) ioctl$TIOCSTI(r4, 0x5412, &(0x7f0000000200)=0xff) (async) ioctl$TIOCSTI(r3, 0x5412, &(0x7f0000000180)) (async) socket$inet6(0xa, 0x2, 0x4) (async) ioctl$TIOCSTI(r3, 0x5412, &(0x7f0000000240)) (async) sendmsg$nl_route(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=@newlink={0x30, 0x10, 0xa9, 0x0, 0x0, {0x0, 0x0, 0x0, r1}, [@IFLA_MASTER={0x8}, @IFLA_MTU={0x8, 0x4, 0x7f}]}, 0x30}}, 0x0) [ 75.932948][ T5315] Bluetooth: hci0: command tx timeout [ 76.012631][ T5338] Oops: general protection fault, probably for non-canonical address 0xdffffc000000005f: 0000 [#1] SMP KASAN NOPTI [ 76.017651][ T5338] KASAN: null-ptr-deref in range [0x00000000000002f8-0x00000000000002ff] [ 76.021454][ T5338] CPU: 0 UID: 0 PID: 5338 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.025459][ T5338] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.030229][ T5338] RIP: 0010:h5_recv+0x146/0x930 [ 76.032664][ T5338] Code: 20 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 7c 0b e7 f9 4d 8b 65 00 31 ff 4c 89 [ 76.041245][ T5338] RSP: 0018:ffffc9000e77fc40 EFLAGS: 00010202 [ 76.043945][ T5338] RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f [ 76.047346][ T5338] RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000 [ 76.050855][ T5338] RBP: ffffc9000e77fd60 R08: ffff8880112c781f R09: 1ffff11002258f03 [ 76.054325][ T5338] R10: dffffc0000000000 R11: ffffffff8841a530 R12: 0000000000000001 [ 76.057751][ T5338] R13: 00000000000002f8 R14: ffff8880112c7810 R15: ffffc9000e77fe00 [ 76.061240][ T5338] FS: 00007fd1771806c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000 [ 76.065263][ T5338] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.068270][ T5338] CR2: 00007fd17717ffc8 CR3: 0000000042e8f000 CR4: 0000000000352ef0 [ 76.071806][ T5338] Call Trace: [ 76.073291][ T5338] [ 76.074623][ T5338] ? __pfx_h5_recv+0x10/0x10 [ 76.076667][ T5338] hci_uart_tty_receive+0x194/0x220 [ 76.078987][ T5338] ? __pfx_hci_uart_tty_receive+0x10/0x10 [ 76.081488][ T5338] tiocsti+0x23c/0x2c0 [ 76.083369][ T5338] ? __pfx_tiocsti+0x10/0x10 [ 76.085461][ T5338] ? __fget_files+0x2a/0x420 [ 76.087531][ T5338] ? __fget_files+0x3a0/0x420 [ 76.089636][ T5338] ? __fget_files+0x2a/0x420 [ 76.091722][ T5338] tty_ioctl+0x626/0xde0 [ 76.093624][ T5338] ? __pfx_tty_ioctl+0x10/0x10 [ 76.095774][ T5338] __se_sys_ioctl+0xfc/0x170 [ 76.097840][ T5338] do_syscall_64+0xec/0xf80 [ 76.099879][ T5338] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.102488][ T5338] ? trace_irq_disable+0x37/0x100 [ 76.104693][ T5338] ? clear_bhb_loop+0x60/0xb0 [ 76.106779][ T5338] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.109347][ T5338] RIP: 0033:0x7fd17638f7c9 [ 76.111246][ T5338] 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 [ 76.119685][ T5338] RSP: 002b:00007fd177180038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 76.123085][ T5338] RAX: ffffffffffffffda RBX: 00007fd1765e6090 RCX: 00007fd17638f7c9 [ 76.126166][ T5338] RDX: 0000200000000280 RSI: 0000000000005412 RDI: 0000000000000006 [ 76.129457][ T5338] RBP: 00007fd176413f91 R08: 0000000000000000 R09: 0000000000000000 [ 76.132676][ T5338] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.135972][ T5338] R13: 00007fd1765e6128 R14: 00007fd1765e6090 R15: 00007ffe728234e8 [ 76.139164][ T5338] [ 76.140599][ T5338] Modules linked in: [ 76.142772][ T5338] ---[ end trace 0000000000000000 ]--- [ 76.166165][ T5338] RIP: 0010:h5_recv+0x146/0x930 [ 76.168327][ T5338] Code: 20 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 7c 0b e7 f9 4d 8b 65 00 31 ff 4c 89 [ 76.178029][ T5338] RSP: 0018:ffffc9000e77fc40 EFLAGS: 00010202 [ 76.181562][ T5338] RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f [ 76.184987][ T5338] RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000 [ 76.188508][ T5338] RBP: ffffc9000e77fd60 R08: ffff8880112c781f R09: 1ffff11002258f03 [ 76.192918][ T5338] R10: dffffc0000000000 R11: ffffffff8841a530 R12: 0000000000000001 [ 76.196226][ T5338] R13: 00000000000002f8 R14: ffff8880112c7810 R15: ffffc9000e77fe00 [ 76.199705][ T5338] FS: 00007fd1771806c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000 [ 76.203860][ T5338] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.206614][ T5338] CR2: 00005557cca5c168 CR3: 0000000042e8f000 CR4: 0000000000352ef0 [ 76.210692][ T5338] Kernel panic - not syncing: Fatal exception [ 76.213635][ T5338] Kernel Offset: disabled [ 76.215517][ T5338] Rebooting in 86400 seconds..