Warning: Permanently added '[localhost]:4900' (ECDSA) to the list of known hosts. 2025/07/04 11:12:42 fuzzer started 2025/07/04 11:12:42 dialing manager at localhost:42083 syzkaller login: [ 53.745822] cgroup: Unknown subsys name 'net' [ 53.832218] cgroup: Unknown subsys name 'cpuset' [ 53.857072] cgroup: Unknown subsys name 'rlimit' 2025/07/04 11:12:56 syscalls: 2214 2025/07/04 11:12:56 code coverage: enabled 2025/07/04 11:12:56 comparison tracing: enabled 2025/07/04 11:12:56 extra coverage: enabled 2025/07/04 11:12:56 setuid sandbox: enabled 2025/07/04 11:12:56 namespace sandbox: enabled 2025/07/04 11:12:56 Android sandbox: enabled 2025/07/04 11:12:56 fault injection: enabled 2025/07/04 11:12:56 leak checking: enabled 2025/07/04 11:12:56 net packet injection: enabled 2025/07/04 11:12:56 net device setup: enabled 2025/07/04 11:12:56 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/07/04 11:12:56 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/07/04 11:12:56 USB emulation: enabled 2025/07/04 11:12:56 hci packet injection: enabled 2025/07/04 11:12:56 wifi device emulation: enabled 2025/07/04 11:12:56 802.15.4 emulation: enabled 2025/07/04 11:12:57 fetching corpus: 0, signal 0/2000 (executing program) 2025/07/04 11:12:57 fetching corpus: 45, signal 26312/29623 (executing program) 2025/07/04 11:12:57 fetching corpus: 95, signal 35649/40308 (executing program) 2025/07/04 11:12:58 fetching corpus: 145, signal 40586/46542 (executing program) 2025/07/04 11:12:59 fetching corpus: 195, signal 44471/51663 (executing program) 2025/07/04 11:12:59 fetching corpus: 245, signal 48665/57005 (executing program) 2025/07/04 11:12:59 fetching corpus: 295, signal 51411/60908 (executing program) 2025/07/04 11:12:59 fetching corpus: 345, signal 54952/65521 (executing program) 2025/07/04 11:12:59 fetching corpus: 395, signal 57861/69450 (executing program) 2025/07/04 11:12:59 fetching corpus: 445, signal 59639/72328 (executing program) 2025/07/04 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165300/166263 (executing program) 2025/07/04 11:13:39 fetching corpus: 9921, signal 165327/166263 (executing program) 2025/07/04 11:13:39 fetching corpus: 9921, signal 165327/166263 (executing program) 2025/07/04 11:13:42 starting 8 fuzzer processes 11:13:42 executing program 0: semop(0x0, 0x0, 0x0) perf_event_open(&(0x7f0000000340)={0x2, 0x80, 0xf0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) semop(0x0, 0x0, 0x0) semctl$GETPID(0x0, 0x3, 0xb, 0x0) 11:13:42 executing program 1: syz_emit_vhci(&(0x7f00000005c0)=@HCI_EVENT_PKT={0x4, @hci_ev_clock_offset={{0x1c, 0x5}}}, 0x8) syz_emit_vhci(0x0, 0x0) 11:13:42 executing program 2: r0 = socket$unix(0x1, 0x1, 0x0) bind$unix(r0, &(0x7f00000000c0)=@file={0x0, './file0\x00'}, 0x6e) 11:13:42 executing program 3: r0 = syz_open_dev$tty20(0xc, 0x4, 0x1) r1 = dup(r0) ioctl$TIOCL_SETSEL(r1, 0x541c, &(0x7f0000001040)={0x2, {0x2, 0x0, 0x0, 0x0, 0x4}}) writev(0xffffffffffffffff, 0x0, 0x0) [ 110.970783] audit: type=1400 audit(1751627622.517:7): avc: denied { execmem } for pid=274 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 11:13:42 executing program 4: semop(0x0, &(0x7f0000000000)=[{0x0, 0x0, 0x1800}], 0x1) semop(0x0, &(0x7f0000000600)=[{0x0, 0x0, 0x1000}], 0x1) 11:13:42 executing program 5: r0 = socket$inet6_udplite(0xa, 0x2, 0x88) setsockopt$inet6_buf(r0, 0x29, 0x11, 0x0, 0x300) 11:13:42 executing program 6: perf_event_open(&(0x7f0000000140)={0x2, 0x80, 0xf1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_open_dev$vcsn(&(0x7f00000000c0), 0xbbc, 0x0) 11:13:42 executing program 7: r0 = syz_open_dev$usbmon(&(0x7f0000000000), 0x0, 0x0) ioctl$FS_IOC_FSSETXATTR(r0, 0x80089203, 0x0) [ 112.245333] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 112.247922] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 112.253157] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 112.257527] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 112.259951] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 112.309752] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 112.313686] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 112.316603] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 112.319750] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 112.324128] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 112.368946] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 112.375075] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 112.380486] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 112.383949] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 112.386643] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 112.423490] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 112.430000] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 112.432389] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 112.447435] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 112.456781] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 112.461764] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 112.465639] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 112.473573] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 112.475044] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 112.478530] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 112.484834] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 112.489501] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 112.491135] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 112.491893] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 112.495937] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 112.501220] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 112.504915] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 112.506523] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 112.508832] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 112.515896] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 112.516775] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 112.531441] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 112.546252] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 112.549895] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 112.556493] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 112.733121] [ 112.735212] ============================= [ 112.736026] WARNING: suspicious RCU usage [ 112.736759] 6.16.0-rc4-next-20250704 #1 Not tainted [ 112.742865] ----------------------------- [ 112.743919] fs/proc/proc_sysctl.c:934 suspicious rcu_dereference_check() usage! [ 112.745124] [ 112.745124] other info that might help us debug this: [ 112.745124] [ 112.746447] [ 112.746447] rcu_scheduler_active = 2, debug_locks = 1 [ 112.747538] 3 locks held by syz-executor.2/285: [ 112.748294] #0: ffff88800f0dc400 (sb_writers#4){.+.+}-{0:0}, at: path_openat+0x1cd3/0x2880 [ 112.749848] #1: ffff888009236618 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: path_openat+0x1308/0x2880 [ 112.751467] #2: ffff888018f649a0 (&lockref->lock){+.+.}-{3:3}, at: d_alloc_parallel+0xf97/0x1330 [ 112.752996] [ 112.752996] stack backtrace: [ 112.753766] CPU: 0 UID: 0 PID: 285 Comm: syz-executor.2 Not tainted 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 112.753796] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 112.753809] Call Trace: [ 112.753818] [ 112.753828] dump_stack_lvl+0xfa/0x120 [ 112.753858] lockdep_rcu_suspicious+0x152/0x1c0 [ 112.753888] proc_sys_compare+0x28a/0x340 [ 112.753911] ? __pfx_proc_sys_compare+0x10/0x10 [ 112.753936] d_same_name+0x229/0x2e0 [ 112.753976] d_alloc_parallel+0x7c1/0x1330 [ 112.754016] ? __pfx_d_alloc_parallel+0x10/0x10 [ 112.754045] ? __pfx_default_wake_function+0x10/0x10 [ 112.754080] ? __d_lookup+0x25f/0x490 [ 112.754115] lookup_open.isra.0+0x64f/0x1530 [ 112.754152] ? __pfx_lookup_open.isra.0+0x10/0x10 [ 112.754199] ? mnt_get_write_access+0x81/0x2d0 [ 112.754221] ? mnt_get_write_access+0x1ea/0x2d0 [ 112.754253] path_openat+0xc26/0x2880 [ 112.754296] ? __lock_acquire+0x694/0x1b70 [ 112.754320] ? __pfx_path_openat+0x10/0x10 [ 112.754370] do_filp_open+0x1e8/0x450 [ 112.754403] ? __pfx_do_filp_open+0x10/0x10 [ 112.754448] ? find_held_lock+0x2b/0x80 [ 112.754480] ? alloc_fd+0x2c1/0x560 [ 112.754509] ? lock_release+0xc8/0x290 [ 112.754539] ? alloc_fd+0x2c1/0x560 [ 112.754580] do_sys_openat2+0x104/0x1b0 [ 112.754607] ? __pfx_do_sys_openat2+0x10/0x10 [ 112.754634] ? rcu_read_unlock+0x2d/0xb0 [ 112.754659] ? lock_release+0xc8/0x290 [ 112.754690] __x64_sys_openat+0x142/0x200 [ 112.754717] ? __pfx___x64_sys_openat+0x10/0x10 [ 112.754750] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 112.754791] do_syscall_64+0xbf/0x360 [ 112.754820] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 112.754844] RIP: 0033:0x7fb0448fda04 [ 112.754863] Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 [ 112.754886] RSP: 002b:00007ffc9aa913e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 112.754907] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fb0448fda04 [ 112.754923] RDX: 0000000000080001 RSI: 00007fb0449a3f61 RDI: 00000000ffffff9c [ 112.754937] RBP: 00007fb0449a3f61 R08: 0000000000000000 R09: 00007ffc9aa913d0 [ 112.754952] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080001 [ 112.754966] R13: 00007ffc9aa91480 R14: 0000000000000000 R15: 00000000000000f8 [ 112.754998] [ 114.340779] Bluetooth: hci0: command tx timeout [ 114.340784] Bluetooth: hci1: command tx timeout [ 114.405096] Bluetooth: hci2: command tx timeout [ 114.532489] Bluetooth: hci3: command tx timeout [ 114.596583] Bluetooth: hci5: command tx timeout [ 114.598038] Bluetooth: hci7: command tx timeout [ 114.598764] Bluetooth: hci6: command tx timeout [ 114.599289] Bluetooth: hci4: command tx timeout [ 116.388460] Bluetooth: hci0: command tx timeout [ 116.388937] Bluetooth: hci1: command tx timeout [ 116.453566] Bluetooth: hci2: command tx timeout [ 116.581494] Bluetooth: hci3: command tx timeout [ 116.644779] Bluetooth: hci6: command tx timeout [ 116.645266] Bluetooth: hci4: command tx timeout [ 116.645314] Bluetooth: hci7: command tx timeout [ 116.645856] Bluetooth: hci5: command tx timeout [ 118.438438] Bluetooth: hci1: command tx timeout [ 118.438906] Bluetooth: hci0: command tx timeout [ 118.501404] Bluetooth: hci2: command tx timeout [ 118.628455] Bluetooth: hci3: command tx timeout [ 118.694401] Bluetooth: hci7: command tx timeout [ 118.694811] Bluetooth: hci4: command tx timeout [ 118.695188] Bluetooth: hci6: command tx timeout [ 118.695597] Bluetooth: hci5: command tx timeout [ 120.485543] Bluetooth: hci0: command tx timeout [ 120.486001] Bluetooth: hci1: command tx timeout [ 120.549460] Bluetooth: hci2: command tx timeout [ 120.677408] Bluetooth: hci3: command tx timeout [ 120.741522] Bluetooth: hci5: command tx timeout [ 120.741966] Bluetooth: hci6: command tx timeout [ 120.742343] Bluetooth: hci4: command tx timeout [ 120.743490] Bluetooth: hci7: command tx timeout VM DIAGNOSIS: 11:13:44 Registers: info registers vcpu 0 RAX=000000000000006e RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff828b5a45 RDI=ffffffff8871dee0 RBP=ffffffff8871dea0 RSP=ffff88801685f2b8 R8 =0000000000000000 R9 =ffffed10014fd046 R10=000000000000006e R11=0000000000000001 R12=000000000000006e R13=0000000000000010 R14=ffffffff8871dea0 R15=ffffffff828b5a30 RIP=ffffffff828b5a9d RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 000055555f4c5400 00000000 00000000 GS =0000 ffff8880e55f3000 00000000 00000000 LDT=0000 fffffe3b00000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fb0acb83368 CR3=000000003c886000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001fa0 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000004147d46654399f8a XMM01=00000000000000003f847ae147ae147b XMM02=00000000000000000000000000000000 XMM03=00000000000000003f73f9a29cb5ddca XMM04=000000c0007edcc0000000c0007edac0 XMM05=000000c000669b00000000c000669900 XMM06=000000c000669fc0000000c000669d00 XMM07=000000c0006d8540000000c0006d8400 XMM08=000000c0006d8900000000c0006d8700 XMM09=000000c0006d8d80000000c0006d8b40 XMM10=000000c0006d9280000000c0006d8f80 XMM11=000000c0006d9600000000c0006d94c0 XMM12=000000c0002fcbe0000000c0006d9700 XMM13=000000c000148660000000c000148630 XMM14=000000c0001486c0000000c000148690 XMM15=000000c0000e9080000000c0001486f0 info registers vcpu 1 RAX=0000000000000000 RBX=ffff888013b375c8 RCX=ffff888013b371bc RDX=0000000000000001 RSI=ffffffff85c1cc40 RDI=ffff888015d5a600 RBP=ffff888013b30000 RSP=ffff888013b371e8 R8 =ffffffff8688fa6c R9 =ffff888013b372a8 R10=000000000003ba94 R11=000000000002483a R12=ffff888013b37201 R13=ffff888013b372b0 R14=ffff888013b375c8 R15=ffff888013b37268 RIP=ffffffff815bb346 RFL=00000282 [--S----] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 0000000000000000 00000000 00000000 GS =0000 ffff8880e56f3000 00000000 00000000 LDT=0000 fffffe2300000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f9d5070c260 CR3=000000001b0b3000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=756e696c2d34365f3638782f62696c2f XMM01=2e6f747079726362696c2f756e672d78 XMM02=00312e312e6f732e6f74707972636269 XMM03=6c2f756e672d78756e696c2d34365f36 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000