program: syz_usb_connect(0x2, 0x9a2, 0x0, 0x0) (async) r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f00000000c0)=0xf) (async) ioctl$IOMMU_TEST_OP_MD_CHECK_MAP(0xffffffffffffffff, 0x3ba0, &(0x7f0000000040)={0x48, 0x3, 0x0, 0x0, 0xcd8, 0xfc, &(0x7f0000000140)="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"}) ioctl$TCFLSH(r0, 0x400455c8, 0x1) (async) ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000680)=0x81) (async) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000100)=0x19) [ 74.326666][ T5320] Bluetooth: hci0: command tx timeout [ 74.378149][ T5340] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000021: 0000 [#1] SMP KASAN NOPTI [ 74.383198][ T5340] KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f] [ 74.387163][ T5340] CPU: 0 UID: 0 PID: 5340 Comm: syz.0.0 Not tainted 6.16.0-rc7-syzkaller-00120-g5f33ebd2018c #0 PREEMPT(full) [ 74.392458][ T5340] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.397078][ T5340] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 74.399419][ T5340] 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 c4 fc c4 f9 49 8b 1f 31 ff 48 89 [ 74.407696][ T5340] RSP: 0018:ffffc9000ff67c00 EFLAGS: 00010206 [ 74.410108][ T5340] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 74.413200][ T5340] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 74.416569][ T5340] RBP: ffffc9000ff67d60 R08: ffff8880405a341f R09: 1ffff110080b4683 [ 74.420658][ T5340] R10: dffffc0000000000 R11: ffffffff885eb3a0 R12: 0000000000000001 [ 74.425008][ T5340] R13: ffffc9000ff67e00 R14: dffffc0000000000 R15: 0000000000000108 [ 74.428730][ T5340] FS: 00007f805d7866c0(0000) GS:ffff88808d218000(0000) knlGS:0000000000000000 [ 74.432692][ T5340] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.435670][ T5340] CR2: 00005555574e57c8 CR3: 0000000043730000 CR4: 0000000000352ef0 [ 74.439196][ T5340] Call Trace: [ 74.440673][ T5340] [ 74.442036][ T5340] ? __pfx_bcsp_recv+0x10/0x10 [ 74.444242][ T5340] ? rcu_read_lock_any_held+0xb3/0x120 [ 74.446886][ T5340] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 74.449610][ T5340] ? tty_audit_push+0x7c/0x250 [ 74.451766][ T5340] hci_uart_tty_receive+0x194/0x220 [ 74.454103][ T5340] ? __pfx_hci_uart_tty_receive+0x10/0x10 [ 74.456586][ T5340] tiocsti+0x23c/0x2c0 [ 74.458618][ T5340] ? __pfx_tiocsti+0x10/0x10 [ 74.460752][ T5340] ? __fget_files+0x2a/0x420 [ 74.463022][ T5340] ? __fget_files+0x3a0/0x420 [ 74.465227][ T5340] ? __fget_files+0x2a/0x420 [ 74.467710][ T5340] tty_ioctl+0x626/0xde0 [ 74.469864][ T5340] ? __pfx_tty_ioctl+0x10/0x10 [ 74.472382][ T5340] __se_sys_ioctl+0xfc/0x170 [ 74.474444][ T5340] do_syscall_64+0xfa/0x3b0 [ 74.476527][ T5340] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.478800][ T5340] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.481418][ T5340] ? clear_bhb_loop+0x60/0xb0 [ 74.483381][ T5340] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.485963][ T5340] RIP: 0033:0x7f805c98e9a9 [ 74.487914][ T5340] 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 [ 74.496381][ T5340] RSP: 002b:00007f805d786038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 74.500112][ T5340] RAX: ffffffffffffffda RBX: 00007f805cbb5fa0 RCX: 00007f805c98e9a9 [ 74.503564][ T5340] RDX: 0000200000000680 RSI: 0000000000005412 RDI: 0000000000000003 [ 74.506928][ T5340] RBP: 00007f805ca10d69 R08: 0000000000000000 R09: 0000000000000000 [ 74.510401][ T5340] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.513863][ T5340] R13: 0000000000000000 R14: 00007f805cbb5fa0 R15: 00007ffcf43f4798 [ 74.517331][ T5340] [ 74.518701][ T5340] Modules linked in: [ 74.520968][ T5340] ---[ end trace 0000000000000000 ]--- [ 74.538965][ T5340] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 74.541253][ T5340] 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 c4 fc c4 f9 49 8b 1f 31 ff 48 89 [ 74.553345][ T5340] RSP: 0018:ffffc9000ff67c00 EFLAGS: 00010206 [ 74.556040][ T5340] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 74.560492][ T5340] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 74.564093][ T5340] RBP: ffffc9000ff67d60 R08: ffff8880405a341f R09: 1ffff110080b4683 [ 74.567989][ T5340] R10: dffffc0000000000 R11: ffffffff885eb3a0 R12: 0000000000000001 [ 74.571842][ T5340] R13: ffffc9000ff67e00 R14: dffffc0000000000 R15: 0000000000000108 [ 74.575975][ T5340] FS: 00007f805d7866c0(0000) GS:ffff88808d218000(0000) knlGS:0000000000000000 [ 74.580656][ T5340] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.583768][ T5340] CR2: 00007f805d743fc8 CR3: 0000000043730000 CR4: 0000000000352ef0 [ 74.587630][ T5340] Kernel panic - not syncing: Fatal exception [ 74.590524][ T5340] Kernel Offset: disabled [ 74.592387][ T5340] Rebooting in 86400 seconds..