program: r0 = fsopen(&(0x7f0000000140)='mqueue\x00', 0x0) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) r1 = fsmount(r0, 0x0, 0x0) fchdir(r1) r2 = fspick(0xffffffffffffff9c, &(0x7f0000000000)='.\x00', 0x0) fsconfig$FSCONFIG_SET_FLAG(r2, 0x0, &(0x7f0000000040)='ro\x00', 0x0, 0x0) fsconfig$FSCONFIG_CMD_RECONFIGURE(r2, 0x7, 0x0, 0x0, 0x0) mq_open(&(0x7f00000004c0)='!\x7f\x00\xca\x00\x00\x00\f\x00\x00\x01E!T\xednux\x02\xc7\x12\xec\xca7\xbc\x1fS\x1c\x05y\x91\xe5\x9aL\xa9u\b\x00\x00\x00\xa0pC\x19\x9b\vY\x186\xa4\xe7\x1eg{`\xfa\xf3n\x8fIj6f\xfb\x13-g\x19(a6\x18\xe24nz\x83w8\xff\xfb\x83\f\x9a\xda\xc5w\x8eo\x02\xa3\xc1\x83\x91\xc6\xfd\x8c\xc4s\x03\x16\xa4+\xce|^\x98K_0\x8a\xb0\xff~\x1e\xd92\xb4r\xd8\xe7', 0x40, 0x110, 0x0) [ 75.142978][ T5316] Bluetooth: hci0: command tx timeout [ 75.184151][ T5336] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] SMP KASAN NOPTI [ 75.194880][ T5336] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 75.199204][ T5336] CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 75.203897][ T5336] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 75.209490][ T5336] RIP: 0010:fd_install+0x57/0x3d0 [ 75.211986][ T5336] Code: 48 81 c3 48 09 00 00 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 c7 4c e6 ff 4c 8b 3b 49 8d 5e 40 48 89 d8 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 29 03 00 00 8b 1b 89 de 81 e6 00 00 00 01 [ 75.219636][ T5336] RSP: 0018:ffffc9000d5cfca0 EFLAGS: 00010202 [ 75.222135][ T5336] RAX: 0000000000000008 RBX: 0000000000000041 RCX: 0000000000100000 [ 75.225583][ T5336] RDX: ffffc90020001000 RSI: 0000000000000120 RDI: 0000000000000121 [ 75.229066][ T5336] RBP: dffffc0000000000 R08: ffff888042b8a523 R09: 1ffff110085714a4 [ 75.232351][ T5336] R10: dffffc0000000000 R11: ffffed10085714a5 R12: 0000000000000006 [ 75.235473][ T5336] R13: 0000000000000006 R14: 0000000000000001 R15: ffff888033346780 [ 75.238674][ T5336] FS: 00007fa98226c6c0(0000) GS:ffff88808d6ba000(0000) knlGS:0000000000000000 [ 75.242492][ T5336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.245353][ T5336] CR2: 00007fa9815ba190 CR3: 0000000043b2b000 CR4: 0000000000352ef0 [ 75.248751][ T5336] Call Trace: [ 75.250112][ T5336] [ 75.251384][ T5336] ? do_mq_open+0x595/0x770 [ 75.253450][ T5336] do_mq_open+0x5a0/0x770 [ 75.255458][ T5336] ? __pfx_do_mq_open+0x10/0x10 [ 75.257782][ T5336] ? rcu_is_watching+0x15/0xb0 [ 75.260167][ T5336] ? __rseq_handle_notify_resume+0x384/0x11d0 [ 75.263062][ T5336] __x64_sys_mq_open+0x16a/0x1c0 [ 75.265421][ T5336] ? __pfx___x64_sys_mq_open+0x10/0x10 [ 75.268126][ T5336] ? do_syscall_64+0xbe/0xf80 [ 75.270290][ T5336] do_syscall_64+0xfa/0xf80 [ 75.272503][ T5336] ? lockdep_hardirqs_on+0x98/0x140 [ 75.274836][ T5336] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.277584][ T5336] ? clear_bhb_loop+0x60/0xb0 [ 75.279716][ T5336] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.282409][ T5336] RIP: 0033:0x7fa98138f7c9 [ 75.284401][ T5336] 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 [ 75.292377][ T5336] RSP: 002b:00007fa98226c038 EFLAGS: 00000246 ORIG_RAX: 00000000000000f0 [ 75.295973][ T5336] RAX: ffffffffffffffda RBX: 00007fa9815e5fa0 RCX: 00007fa98138f7c9 [ 75.299562][ T5336] RDX: 0000000000000110 RSI: 0000000000000040 RDI: 00002000000004c0 [ 75.303073][ T5336] RBP: 00007fa981413f91 R08: 0000000000000000 R09: 0000000000000000 [ 75.306629][ T5336] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.310207][ T5336] R13: 00007fa9815e6038 R14: 00007fa9815e5fa0 R15: 00007ffd7dae2858 [ 75.313839][ T5336] [ 75.315310][ T5336] Modules linked in: [ 75.317521][ T5336] ---[ end trace 0000000000000000 ]--- [ 75.335115][ T5336] RIP: 0010:fd_install+0x57/0x3d0 [ 75.337615][ T5336] Code: 48 81 c3 48 09 00 00 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 c7 4c e6 ff 4c 8b 3b 49 8d 5e 40 48 89 d8 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 29 03 00 00 8b 1b 89 de 81 e6 00 00 00 01 [ 75.347324][ T5336] RSP: 0018:ffffc9000d5cfca0 EFLAGS: 00010202 [ 75.351210][ T5336] RAX: 0000000000000008 RBX: 0000000000000041 RCX: 0000000000100000 [ 75.355274][ T5336] RDX: ffffc90020001000 RSI: 0000000000000120 RDI: 0000000000000121 [ 75.358537][ T5336] RBP: dffffc0000000000 R08: ffff888042b8a523 R09: 1ffff110085714a4 [ 75.362430][ T5336] R10: dffffc0000000000 R11: ffffed10085714a5 R12: 0000000000000006 [ 75.365709][ T5336] R13: 0000000000000006 R14: 0000000000000001 R15: ffff888033346780 [ 75.368848][ T5336] FS: 00007fa98226c6c0(0000) GS:ffff88808d6ba000(0000) knlGS:0000000000000000 [ 75.373092][ T5336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.375873][ T5336] CR2: 00007feaee0aad20 CR3: 0000000043b2b000 CR4: 0000000000352ef0 [ 75.379901][ T5336] Kernel panic - not syncing: Fatal exception [ 75.383111][ T5336] Kernel Offset: disabled [ 75.385113][ T5336] Rebooting in 86400 seconds..