program: r0 = socket$nl_route(0x10, 0x3, 0x0) (async) r1 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$TIOCSETD(r1, 0x5423, &(0x7f00000000c0)=0xf) (async) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$TCFLSH(r2, 0x400455c8, 0x2) (async) syz_usb_disconnect(0xffffffffffffffff) (async) ioctl$TIOCSTI(r1, 0x5412, &(0x7f0000000180)=0x5) prctl$PR_SET_MM(0x29, 0x0, &(0x7f0000acc000/0x2000)=nil) r3 = syz_genetlink_get_family_id$batadv(&(0x7f0000000100), r2) sendmsg$BATADV_CMD_GET_DAT_CACHE(r2, &(0x7f0000000280)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x3c, r3, 0x57bc38610f9ab9c9, 0x70bd27, 0x25dfdbfd, {}, [@BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x1000}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_HOP_PENALTY={0x5}, @BATADV_ATTR_HOP_PENALTY={0x5, 0x35, 0x2}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}]}, 0x3c}, 0x1, 0x0, 0x0, 0x10}, 0x4) (async) ioctl$TIOCSTI(r1, 0x5412, &(0x7f0000000040)=0xc0) sendmsg$nl_route(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=@newlink={0x50, 0x10, 0x401, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x24, 0x12, 0x0, 0x1, @xfrm={{0x9}, {0x14, 0x2, 0x0, 0x1, [@IFLA_XFRM_LINK={0x8, 0x1, 0x4}, @IFLA_XFRM_IF_ID={0x8, 0x2, 0x2}]}}}, @IFLA_ADDRESS={0xa, 0x1, @remote}]}, 0x50}}, 0x0) [ 68.600698][ T4703] Bluetooth: hci0: command tx timeout [ 68.775452][ T5356] Oops: general protection fault, probably for non-canonical address 0xdffffc000000005f: 0000 [#1] SMP KASAN NOPTI [ 68.799711][ T5356] KASAN: null-ptr-deref in range [0x00000000000002f8-0x00000000000002ff] [ 68.803450][ T5356] CPU: 0 UID: 0 PID: 5356 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 68.824665][ T5356] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.829320][ T5356] RIP: 0010:h5_recv+0x146/0x910 [ 68.831698][ T5356] 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 ec 5f b8 f9 4d 8b 65 00 31 ff 4c 89 [ 68.873655][ T5356] RSP: 0018:ffffc9000d497c40 EFLAGS: 00010202 [ 68.876168][ T5356] RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f [ 68.888685][ T5356] RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000 [ 68.892274][ T5356] RBP: ffffc9000d497d60 R08: ffff88803fed501f R09: 1ffff11007fdaa03 [ 68.895785][ T5356] R10: dffffc0000000000 R11: ffffffff886c4c90 R12: 0000000000000001 [ 68.925637][ T5356] R13: 00000000000002f8 R14: ffff88803fed5010 R15: ffffc9000d497e00 [ 68.931755][ T5356] FS: 00007f3bb31f56c0(0000) GS:ffff88808d20d000(0000) knlGS:0000000000000000 [ 68.963445][ T5356] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.966378][ T5356] CR2: 000055556ac617c8 CR3: 00000000119d7000 CR4: 0000000000352ef0 [ 68.985955][ T5356] Call Trace: [ 68.987360][ T5356] [ 68.988603][ T5356] ? __pfx_h5_recv+0x10/0x10 [ 69.017516][ T5356] ? rcu_read_lock_any_held+0xb3/0x120 [ 69.019938][ T5356] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 69.022363][ T5356] ? tty_audit_push+0x7c/0x250 [ 69.024418][ T5356] hci_uart_tty_receive+0x194/0x220 [ 69.026579][ T5356] ? __pfx_hci_uart_tty_receive+0x10/0x10 [ 69.037111][ T5356] tiocsti+0x239/0x2c0 [ 69.048396][ T5356] ? __pfx_tiocsti+0x10/0x10 [ 69.057911][ T5356] ? __fget_files+0x2a/0x420 [ 69.069419][ T5356] ? __fget_files+0x3a0/0x420 [ 69.071600][ T5356] ? __fget_files+0x2a/0x420 [ 69.073746][ T5356] tty_ioctl+0x626/0xde0 [ 69.075682][ T5356] ? __pfx_tty_ioctl+0x10/0x10 [ 69.089490][ T5356] __se_sys_ioctl+0xf9/0x170 [ 69.091425][ T5356] do_syscall_64+0xfa/0x3b0 [ 69.093382][ T5356] ? lockdep_hardirqs_on+0x9c/0x150 [ 69.095490][ T5356] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.097976][ T5356] ? clear_bhb_loop+0x60/0xb0 [ 69.101002][ T5356] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.107044][ T5356] RIP: 0033:0x7f3bb6d8ebe9 [ 69.112973][ T5356] 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 [ 69.133438][ T5356] RSP: 002b:00007f3bb31f5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 69.146067][ T5356] RAX: ffffffffffffffda RBX: 00007f3bb6fc5fa0 RCX: 00007f3bb6d8ebe9 [ 69.156628][ T5356] RDX: 0000200000000180 RSI: 0000000000005412 RDI: 0000000000000004 [ 69.169313][ T5356] RBP: 00007f3bb6e11e19 R08: 0000000000000000 R09: 0000000000000000 [ 69.172488][ T5356] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.176045][ T5356] R13: 00007f3bb6fc6038 R14: 00007f3bb6fc5fa0 R15: 00007fff0b7b91d8 [ 69.199583][ T5356] [ 69.201115][ T5356] Modules linked in: [ 69.214450][ T5356] ---[ end trace 0000000000000000 ]--- [ 69.251528][ T5356] RIP: 0010:h5_recv+0x146/0x910 [ 69.253970][ T5356] 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 ec 5f b8 f9 4d 8b 65 00 31 ff 4c 89 [ 69.282052][ T5356] RSP: 0018:ffffc9000d497c40 EFLAGS: 00010202 [ 69.285714][ T5356] RAX: dffffc0000000000 RBX: 00000000000002e8 RCX: 000000000000005f [ 69.291455][ T5356] RDX: 000000000000005e RSI: 0000000000000001 RDI: 0000000000000000 [ 69.296021][ T5356] RBP: ffffc9000d497d60 R08: ffff88803fed501f R09: 1ffff11007fdaa03 [ 69.310450][ T5356] R10: dffffc0000000000 R11: ffffffff886c4c90 R12: 0000000000000001 [ 69.314037][ T5356] R13: 00000000000002f8 R14: ffff88803fed5010 R15: ffffc9000d497e00 [ 69.331728][ T5356] FS: 00007f3bb31f56c0(0000) GS:ffff88808d20d000(0000) knlGS:0000000000000000 [ 69.336020][ T5356] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.350236][ T5356] CR2: 00007fff0b7b8a00 CR3: 00000000119d7000 CR4: 0000000000352ef0 [ 69.353937][ T5356] Kernel panic - not syncing: Fatal exception [ 69.357156][ T5356] Kernel Offset: disabled [ 69.370045][ T5356] Rebooting in 86400 seconds..