program: r0 = socket$nl_generic(0x10, 0x3, 0x10) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)) (async) setpgid(0x0, 0xffffffffffffffff) (async) sendmsg$nl_generic(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000440)={&(0x7f0000000040)={0x48, 0x2d, 0x9, 0x70bd27, 0x0, {0x4}, [@typed={0x34, 0x18, 0x0, 0x0, @binary="d4b5d895002b5897d0a928b277d27fc64a5f2844ce17bb27929832f12426b160310ca227257ccecadac32ca399dc611a"}]}, 0x48}}, 0x84) (async) r1 = openat$vicodec0(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$TIOCSETD(r2, 0x5423, &(0x7f00000000c0)=0xf) r3 = fcntl$dupfd(r2, 0x0, r2) ioctl$TCFLSH(r3, 0x400455c8, 0x1) (async) ioctl$TIOCSTI(r3, 0x5412, &(0x7f0000000040)=0xff) (async) ioctl$TIOCSTI(r3, 0x5412, &(0x7f0000000340)) (async) ioctl$TIOCSTI(r2, 0x5412, &(0x7f0000000180)=0x40) ioctl$TIOCSTI(r2, 0x5412, &(0x7f0000000240)) ioctl$TIOCSTI(r3, 0x5412, &(0x7f00000001c0)) (async) ioctl$VIDIOC_S_FMT(r1, 0xc0d05605, &(0x7f0000000500)={0x8, @pix_mp={0x0, 0x0, 0x32315258, 0x3, 0xb, [{0x40003}, {0x1, 0x80}, {0xb6e7}, {0x0, 0xffffffff}, {}, {0xa7}, {0x200003, 0x2000}], 0x0, 0x0, 0x6, 0x2}}) [ 74.219528][ T5317] Bluetooth: hci0: command tx timeout [ 74.310809][ T5338] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000021: 0000 [#1] SMP KASAN NOPTI [ 74.316241][ T5338] KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f] [ 74.319966][ T5338] CPU: 0 UID: 0 PID: 5338 Comm: syz.0.0 Not tainted 6.16.0-rc6-syzkaller #0 PREEMPT(full) [ 74.324554][ T5338] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.329435][ T5338] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 74.331740][ T5338] 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 b4 20 c5 f9 49 8b 1f 31 ff 48 89 [ 74.340003][ T5338] RSP: 0018:ffffc9000d44fc00 EFLAGS: 00010206 [ 74.342940][ T5338] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 74.347420][ T5338] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 74.350726][ T5338] RBP: ffffc9000d44fd60 R08: ffff888011df2c1f R09: 1ffff110023be583 [ 74.354165][ T5338] R10: dffffc0000000000 R11: ffffffff885e9190 R12: 0000000000000001 [ 74.357620][ T5338] R13: ffffc9000d44fe00 R14: dffffc0000000000 R15: 0000000000000108 [ 74.360986][ T5338] FS: 00007fda517b36c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 [ 74.364605][ T5338] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.367476][ T5338] CR2: 00007fda517b2fc8 CR3: 000000004365a000 CR4: 0000000000352ef0 [ 74.370981][ T5338] Call Trace: [ 74.372518][ T5338] [ 74.373827][ T5338] ? __pfx_bcsp_recv+0x10/0x10 [ 74.375965][ T5338] ? rcu_read_lock_any_held+0xb3/0x120 [ 74.378330][ T5338] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 74.381003][ T5338] ? tty_audit_push+0x7c/0x250 [ 74.383152][ T5338] hci_uart_tty_receive+0x194/0x220 [ 74.385413][ T5338] ? __pfx_hci_uart_tty_receive+0x10/0x10 [ 74.387821][ T5338] tiocsti+0x239/0x2c0 [ 74.389533][ T5338] ? __pfx_tiocsti+0x10/0x10 [ 74.391586][ T5338] ? __fget_files+0x2a/0x420 [ 74.393632][ T5338] ? __fget_files+0x3a0/0x420 [ 74.395636][ T5338] ? __fget_files+0x2a/0x420 [ 74.397743][ T5338] tty_ioctl+0x626/0xde0 [ 74.399647][ T5338] ? __pfx_tty_ioctl+0x10/0x10 [ 74.401819][ T5338] __se_sys_ioctl+0xfc/0x170 [ 74.403848][ T5338] do_syscall_64+0xfa/0x3b0 [ 74.405852][ T5338] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.408098][ T5338] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.410664][ T5338] ? clear_bhb_loop+0x60/0xb0 [ 74.412703][ T5338] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.415152][ T5338] RIP: 0033:0x7fda5538e929 [ 74.417004][ 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 [ 74.424593][ T5338] RSP: 002b:00007fda517b3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 74.427991][ T5338] RAX: ffffffffffffffda RBX: 00007fda555b6160 RCX: 00007fda5538e929 [ 74.431464][ T5338] RDX: 0000200000000040 RSI: 0000000000005412 RDI: 0000000000000008 [ 74.434858][ T5338] RBP: 00007fda55410b39 R08: 0000000000000000 R09: 0000000000000000 [ 74.438766][ T5338] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.442614][ T5338] R13: 0000000000000001 R14: 00007fda555b6160 R15: 00007ffffd3bd2b8 [ 74.445998][ T5338] [ 74.447373][ T5338] Modules linked in: [ 74.450512][ T5338] ---[ end trace 0000000000000000 ]--- [ 74.466433][ T5338] RIP: 0010:bcsp_recv+0x13d/0x1740 [ 74.469415][ T5338] 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 b4 20 c5 f9 49 8b 1f 31 ff 48 89 [ 74.478713][ T5338] RSP: 0018:ffffc9000d44fc00 EFLAGS: 00010206 [ 74.481300][ T5338] RAX: 0000000000000021 RBX: 0000000000000030 RCX: 000000000000002f [ 74.484591][ T5338] RDX: 000000000000002f RSI: 0000000000000001 RDI: 0000000000000000 [ 74.489167][ T5338] RBP: ffffc9000d44fd60 R08: ffff888011df2c1f R09: 1ffff110023be583 [ 74.492721][ T5338] R10: dffffc0000000000 R11: ffffffff885e9190 R12: 0000000000000001 [ 74.496244][ T5338] R13: ffffc9000d44fe00 R14: dffffc0000000000 R15: 0000000000000108 [ 74.500692][ T5338] FS: 00007fda517b36c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 [ 74.504718][ T5338] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.508088][ T5338] CR2: 00007ffffd3bcb00 CR3: 000000004365a000 CR4: 0000000000352ef0 [ 74.511743][ T5338] Kernel panic - not syncing: Fatal exception [ 74.514888][ T5338] Kernel Offset: disabled [ 74.516923][ T5338] Rebooting in 86400 seconds..