Warning: Permanently added '[localhost]:27592' (ECDSA) to the list of known hosts. 2025/07/02 10:41:45 fuzzer started 2025/07/02 10:41:46 dialing manager at localhost:45015 syzkaller login: [ 52.053222] cgroup: Unknown subsys name 'net' [ 52.131879] cgroup: Unknown subsys name 'cpuset' [ 52.156787] cgroup: Unknown subsys name 'rlimit' 2025/07/02 10:41:57 syscalls: 2214 2025/07/02 10:41:57 code coverage: enabled 2025/07/02 10:41:57 comparison tracing: enabled 2025/07/02 10:41:57 extra coverage: enabled 2025/07/02 10:41:57 setuid sandbox: enabled 2025/07/02 10:41:57 namespace sandbox: enabled 2025/07/02 10:41:57 Android sandbox: enabled 2025/07/02 10:41:57 fault injection: enabled 2025/07/02 10:41:57 leak checking: enabled 2025/07/02 10:41:57 net packet injection: enabled 2025/07/02 10:41:57 net device setup: enabled 2025/07/02 10:41:57 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/07/02 10:41:57 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/07/02 10:41:57 USB emulation: enabled 2025/07/02 10:41:57 hci packet injection: enabled 2025/07/02 10:41:57 wifi device emulation: enabled 2025/07/02 10:41:57 802.15.4 emulation: enabled 2025/07/02 10:41:57 fetching corpus: 0, signal 0/2000 (executing program) 2025/07/02 10:41:58 fetching corpus: 48, signal 22616/26061 (executing program) 2025/07/02 10:41:58 fetching corpus: 98, signal 32675/37475 (executing program) 2025/07/02 10:41:58 fetching corpus: 148, signal 36742/42943 (executing program) 2025/07/02 10:41:58 fetching corpus: 197, signal 42249/49655 (executing program) 2025/07/02 10:41:58 fetching corpus: 247, signal 46836/55350 (executing program) 2025/07/02 10:41:58 fetching corpus: 297, signal 50956/60529 (executing program) 2025/07/02 10:41:58 fetching corpus: 347, signal 55802/66279 (executing program) 2025/07/02 10:41:58 fetching corpus: 397, signal 58794/70265 (executing program) 2025/07/02 10:41:58 fetching corpus: 447, signal 60502/73077 (executing program) 2025/07/02 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program) 2025/07/02 10:42:11 fetching corpus: 9393, signal 159751/161612 (executing program) 2025/07/02 10:42:11 fetching corpus: 9443, signal 159883/161612 (executing program) 2025/07/02 10:42:11 fetching corpus: 9493, signal 160070/161615 (executing program) 2025/07/02 10:42:11 fetching corpus: 9543, signal 160228/161615 (executing program) 2025/07/02 10:42:11 fetching corpus: 9592, signal 160382/161615 (executing program) 2025/07/02 10:42:11 fetching corpus: 9630, signal 160581/161615 (executing program) 2025/07/02 10:42:11 fetching corpus: 9630, signal 160581/161615 (executing program) 2025/07/02 10:42:13 starting 8 fuzzer processes 10:42:13 executing program 5: r0 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$IPT_SO_GET_REVISION_TARGET(r0, 0x0, 0x43, 0x0, &(0x7f0000000a40)) 10:42:13 executing program 7: r0 = syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x0, 0x4, &(0x7f0000000200)=[{&(0x7f0000010000)="eb3c906d6b66732e66617400028001000440000004f801", 0x17}, {&(0x7f0000010100)="00000000000000000000000000000000000000000000000000000000000055aaf8ffff00f0ffff", 0x27, 0x1e0}, {&(0x7f0000010500)="53595a4b414c4c45522020080000ec80325132510000ec80325100000000000041660069006c00650030000f00fc0000ffffffffffffffffffff0000ffffffff46494c4530202020202020100035ec70325132510000ec70325103", 0x5b, 0xb00}, {&(0x7f0000010700)="2e20202020202020202020100035ec70", 0x10, 0x111fe}], 0x0, &(0x7f0000010f00)) futimesat(r0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000080)={{0x0, 0x2710}, {0x0, 0xea60}}) removexattr(&(0x7f00000000c0)='./file0\x00', &(0x7f0000000140)=@random={'osx.', '\x1f.\x00'}) symlinkat(0x0, 0xffffffffffffffff, &(0x7f00000003c0)='./file0\x00') 10:42:13 executing program 0: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) getsockopt$sock_cred(r0, 0x1, 0x11, &(0x7f00000085c0)={0x0, 0x0, 0x0}, &(0x7f0000008600)=0xc) setregid(0x0, r1) [ 77.416299] audit: type=1400 audit(1751452933.347:7): avc: denied { execmem } for pid=271 comm="syz-executor.7" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 10:42:13 executing program 1: perf_event_open(&(0x7f0000000340)={0x2, 0x80, 0xf0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) syz_mount_image$ext4(0x0, &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x0, 0x0, 0x0) lsetxattr$security_capability(&(0x7f0000000000)='./file0\x00', &(0x7f0000000040), &(0x7f0000000080)=@v3={0x3000000, [], 0xee00}, 0x18, 0x0) 10:42:13 executing program 6: r0 = syz_open_dev$tty20(0xc, 0x4, 0x0) setresuid(0x0, 0xee01, 0x0) ioctl$KDSETLED(r0, 0x4b63, 0x0) 10:42:13 executing program 2: syz_mount_image$ext4(0x0, &(0x7f0000000100)='./file0\x00', 0x80004, 0x0, 0x0, 0x0, 0x0) perf_event_open(&(0x7f0000000340)={0x2, 0x80, 0xb7, 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_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) open$dir(&(0x7f0000000040)='./file0\x00', 0x0, 0x0) 10:42:13 executing program 3: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000001b00)={0x1f, 0x0, @fixed}, 0xe) shutdown(r0, 0x1) 10:42:13 executing program 4: pipe(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r0, 0x0, r1, 0x0, 0x4, 0x0) [ 78.630001] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 78.636585] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 78.638662] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 78.642680] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 78.645211] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 78.699113] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 78.701738] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 78.703294] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 78.712470] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 78.725849] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 78.731076] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 78.732261] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 78.734048] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 78.738031] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 78.739797] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 78.744462] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 78.748954] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 78.751384] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 78.751469] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 78.757610] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 78.766954] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 78.766991] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 78.770158] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 78.778215] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 78.780209] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 78.846805] [ 78.847496] ============================= [ 78.848091] WARNING: suspicious RCU usage [ 78.848868] 6.16.0-rc4-next-20250702 #1 Not tainted [ 78.855158] ----------------------------- [ 78.856065] fs/proc/proc_sysctl.c:934 suspicious rcu_dereference_check() usage! [ 78.857186] [ 78.857186] other info that might help us debug this: [ 78.857186] [ 78.858365] [ 78.858365] rcu_scheduler_active = 2, debug_locks = 1 [ 78.859313] 3 locks held by syz-executor.5/284: [ 78.860019] #0: ffff88800f790400 (sb_writers#4){.+.+}-{0:0}, at: path_openat+0x1cd3/0x2880 [ 78.861374] #1: ffff888009176618 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: path_openat+0x1308/0x2880 [ 78.862831] #2: ffff8880191a30f8 (&lockref->lock){+.+.}-{3:3}, at: d_alloc_parallel+0xf97/0x1330 [ 78.864189] [ 78.864189] stack backtrace: [ 78.864886] CPU: 0 UID: 0 PID: 284 Comm: syz-executor.5 Not tainted 6.16.0-rc4-next-20250702 #1 PREEMPT(voluntary) [ 78.864914] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 78.864926] Call Trace: [ 78.864934] [ 78.864942] dump_stack_lvl+0xfa/0x120 [ 78.864967] lockdep_rcu_suspicious+0x152/0x1c0 [ 78.864994] proc_sys_compare+0x28a/0x340 [ 78.865016] ? __pfx_proc_sys_compare+0x10/0x10 [ 78.865040] d_same_name+0x229/0x2e0 [ 78.865063] d_alloc_parallel+0x7c1/0x1330 [ 78.865100] ? __pfx_d_alloc_parallel+0x10/0x10 [ 78.865128] ? __pfx_default_wake_function+0x10/0x10 [ 78.865159] ? __d_lookup+0x25f/0x490 [ 78.865202] lookup_open.isra.0+0x64f/0x1530 [ 78.865236] ? __pfx_lookup_open.isra.0+0x10/0x10 [ 78.865280] ? mnt_get_write_access+0x81/0x2d0 [ 78.865301] ? mnt_get_write_access+0x1ea/0x2d0 [ 78.865337] path_openat+0xc26/0x2880 [ 78.865378] ? __lock_acquire+0x694/0x1b70 [ 78.865399] ? __pfx_path_openat+0x10/0x10 [ 78.865439] do_filp_open+0x1e8/0x450 [ 78.865470] ? __pfx_do_filp_open+0x10/0x10 [ 78.865512] ? find_held_lock+0x2b/0x80 [ 78.865541] ? alloc_fd+0x2c1/0x560 [ 78.865568] ? lock_release+0xc8/0x290 [ 78.865595] ? alloc_fd+0x2c1/0x560 [ 78.865632] do_sys_openat2+0x104/0x1b0 [ 78.865657] ? __pfx_do_sys_openat2+0x10/0x10 [ 78.865683] ? rcu_read_unlock+0x2d/0xb0 [ 78.865705] ? lock_release+0xc8/0x290 [ 78.865733] __x64_sys_openat+0x142/0x200 [ 78.865758] ? __pfx___x64_sys_openat+0x10/0x10 [ 78.865790] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 78.865828] do_syscall_64+0xbf/0x360 [ 78.865852] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.865873] RIP: 0033:0x7feb8987fa04 [ 78.865891] 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 [ 78.865910] RSP: 002b:00007fff3b5ed830 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 78.865930] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007feb8987fa04 [ 78.865944] RDX: 0000000000080001 RSI: 00007feb89925f61 RDI: 00000000ffffff9c [ 78.865957] RBP: 00007feb89925f61 R08: 0000000000000000 R09: 00007fff3b5ed820 [ 78.865970] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080001 [ 78.865983] R13: 00007fff3b5ed8d0 R14: 0000000000000000 R15: 00000000000000f8 [ 78.866012] [ 78.910759] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 78.913916] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 78.916081] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 78.919515] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 78.919528] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 78.926970] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 78.928844] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 78.930728] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 78.931146] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 78.949135] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 78.951223] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 78.953180] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 78.967948] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 78.987945] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 78.993998] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 80.664833] Bluetooth: hci0: command tx timeout [ 80.795383] Bluetooth: hci1: command tx timeout [ 80.857445] Bluetooth: hci4: command tx timeout [ 80.857562] Bluetooth: hci3: command tx timeout [ 80.858712] Bluetooth: hci2: command tx timeout [ 80.984428] Bluetooth: hci5: command tx timeout [ 80.985147] Bluetooth: hci6: command tx timeout [ 81.048395] Bluetooth: hci7: command tx timeout [ 82.712446] Bluetooth: hci0: command tx timeout [ 82.840468] Bluetooth: hci1: command tx timeout [ 82.904383] Bluetooth: hci3: command tx timeout [ 82.904820] Bluetooth: hci2: command tx timeout [ 82.905448] Bluetooth: hci4: command tx timeout [ 83.032394] Bluetooth: hci5: command tx timeout [ 83.032451] Bluetooth: hci6: command tx timeout [ 83.097967] Bluetooth: hci7: command tx timeout [ 84.761429] Bluetooth: hci0: command tx timeout [ 84.890529] Bluetooth: hci1: command tx timeout [ 84.953388] Bluetooth: hci3: command tx timeout [ 84.953823] Bluetooth: hci4: command tx timeout [ 84.954209] Bluetooth: hci2: command tx timeout [ 85.080465] Bluetooth: hci5: command tx timeout [ 85.083344] Bluetooth: hci6: command tx timeout [ 85.144378] Bluetooth: hci7: command tx timeout [ 86.810487] Bluetooth: hci0: command tx timeout [ 86.936436] Bluetooth: hci1: command tx timeout [ 87.000380] Bluetooth: hci4: command tx timeout [ 87.001623] Bluetooth: hci2: command tx timeout [ 87.002024] Bluetooth: hci3: command tx timeout [ 87.129502] Bluetooth: hci6: command tx timeout [ 87.129937] Bluetooth: hci5: command tx timeout [ 87.192370] Bluetooth: hci7: command tx timeout VM DIAGNOSIS: 10:42:14 Registers: info registers vcpu 0 RAX=0000000000000035 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff828ba3e5 RDI=ffffffff88722060 RBP=ffffffff88722020 RSP=ffff8880163a72b8 R8 =0000000000000000 R9 =ffffed10016d6046 R10=0000000000000035 R11=0000000000000001 R12=0000000000000035 R13=0000000000000010 R14=ffffffff88722020 R15=ffffffff828ba3d0 RIP=ffffffff828ba43d 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 00005555773c7400 00000000 00000000 GS =0000 ffff8880e55ef000 00000000 00000000 LDT=0000 fffffe2f00000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f69e0e8d27c CR3=000000003b45b000 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=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=ffffffffffffff00000000ff00000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000007 RBX=0000000000000001 RCX=ffffffff81356741 RDX=0000000000003567 RSI=0000000000003567 RDI=ffffffff86c9ded4 RBP=ffff8880095473c0 RSP=ffff8880095472a8 R8 =0000000000000000 R9 =0000000000000000 R10=000000000003bb04 R11=0000000000006bdc R12=ffff8880095473c8 R13=ffff8880095473b0 R14=ffff8880095473a9 R15=ffff888009547368 RIP=ffffffff81353e9a RFL=00000246 [---Z-P-] 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 00007f35be00f900 00000000 00000000 GS =0000 ffff8880e56ef000 00000000 00000000 LDT=0000 fffffe6000000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fd7151a34a1 CR3=0000000009dab000 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=00000000000000000000000000000000 XMM01=000000000000000000000000ff000000 XMM02=635f656572746275732e70756f726763 XMM03=006c6f72746e6f635f65657274627573 XMM04=2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f2f XMM05=00005638776504e00000000000000000 XMM06=00005638777354c0000056387774a6b0 XMM07=00000000000000000000000000000000 XMM08=00000000000000210000000000006465 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000