Warning: Permanently added '[localhost]:18343' (ECDSA) to the list of known hosts. 2025/07/03 10:13:34 fuzzer started 2025/07/03 10:13:35 dialing manager at localhost:33709 syzkaller login: [ 50.988067] cgroup: Unknown subsys name 'net' [ 51.066578] cgroup: Unknown subsys name 'cpuset' [ 51.079854] cgroup: Unknown subsys name 'rlimit' 2025/07/03 10:13:45 syscalls: 2214 2025/07/03 10:13:45 code coverage: enabled 2025/07/03 10:13:45 comparison tracing: enabled 2025/07/03 10:13:45 extra coverage: enabled 2025/07/03 10:13:45 setuid sandbox: enabled 2025/07/03 10:13:45 namespace sandbox: enabled 2025/07/03 10:13:45 Android sandbox: enabled 2025/07/03 10:13:45 fault injection: enabled 2025/07/03 10:13:45 leak checking: enabled 2025/07/03 10:13:45 net packet injection: enabled 2025/07/03 10:13:45 net device setup: enabled 2025/07/03 10:13:45 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/07/03 10:13:45 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/07/03 10:13:45 USB emulation: enabled 2025/07/03 10:13:45 hci packet injection: enabled 2025/07/03 10:13:45 wifi device emulation: enabled 2025/07/03 10:13:45 802.15.4 emulation: enabled 2025/07/03 10:13:45 fetching corpus: 0, signal 0/2000 (executing program) 2025/07/03 10:13:45 fetching corpus: 50, signal 18547/22119 (executing program) 2025/07/03 10:13:45 fetching corpus: 100, signal 28505/33515 (executing program) 2025/07/03 10:13:45 fetching corpus: 150, signal 38520/44716 (executing program) 2025/07/03 10:13:45 fetching corpus: 200, signal 41734/49230 (executing program) 2025/07/03 10:13:45 fetching corpus: 250, signal 47680/56298 (executing program) 2025/07/03 10:13:45 fetching corpus: 300, signal 51372/61135 (executing program) 2025/07/03 10:13:45 fetching corpus: 350, signal 54069/64966 (executing program) 2025/07/03 10:13:45 fetching corpus: 400, signal 56737/68646 (executing program) 2025/07/03 10:13:45 fetching corpus: 449, signal 58950/71935 (executing program) 2025/07/03 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165523/167122 (executing program) 2025/07/03 10:13:59 fetching corpus: 9964, signal 165537/167122 (executing program) 2025/07/03 10:13:59 fetching corpus: 9964, signal 165537/167122 (executing program) 2025/07/03 10:14:01 starting 8 fuzzer processes 10:14:01 executing program 0: r0 = socket$inet6_udplite(0xa, 0x2, 0x88) fcntl$lock(r0, 0x25, &(0x7f0000000180)={0x0, 0x0, 0x80000000}) fcntl$lock(r0, 0x26, &(0x7f0000000100)={0x2, 0x0, 0x0, 0x2}) 10:14:01 executing program 1: r0 = epoll_create(0xe8) r1 = socket$inet6_udp(0xa, 0x2, 0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r1, &(0x7f0000000080)) r2 = epoll_create1(0x0) r3 = syz_open_dev$evdev(&(0x7f0000000040), 0x0, 0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r3, &(0x7f00000000c0)) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r0, &(0x7f0000000000)) [ 76.747220] audit: type=1400 audit(1751537641.190:7): avc: denied { execmem } for pid=272 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 10:14:01 executing program 2: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) setresuid(0x0, 0xee01, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8913, &(0x7f0000000000)={'bridge0\x00'}) 10:14:01 executing program 3: perf_event_open(&(0x7f0000000340)={0x2, 0x80, 0x7f, 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) memfd_create(0x0, 0x0) dup(0xffffffffffffffff) 10:14:01 executing program 4: r0 = socket$inet6_udplite(0xa, 0x2, 0x88) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @remote, 0x2}, 0x1c) sendmmsg$inet6(r0, &(0x7f0000003b80)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f00000003c0)=[@flowinfo={{0x14, 0x29, 0xb, 0x4}}], 0x18}}], 0x1, 0x4000) 10:14:01 executing program 5: r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000440), 0x4840, 0x0) ioctl$CDROMREADAUDIO(r0, 0x80081280, &(0x7f0000000080)={@lba, 0x0, 0x0, 0x0}) 10:14:01 executing program 6: r0 = creat(&(0x7f00000003c0)='./file0\x00', 0x0) ioctl$FS_IOC_SETFLAGS(r0, 0x40086602, &(0x7f00000000c0)=0x4000) 10:14:01 executing program 7: r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000440), 0x4840, 0x0) ioctl$CDROMMULTISESSION(r0, 0x5310, &(0x7f0000000000)={@lba, 0x0, 0x2}) [ 77.903468] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 77.906163] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 77.908254] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 77.912544] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 77.916684] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 77.919432] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 77.921235] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 77.923692] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 77.934610] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 77.937279] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 78.111859] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 78.117697] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 78.125101] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 78.125363] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 78.127422] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 78.128849] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 78.131071] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 78.133143] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 78.137514] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 78.140510] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 78.144728] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 78.146627] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 78.149494] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 78.151220] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 78.153153] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 78.157245] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 78.158790] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 78.163139] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 78.166438] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 78.169183] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 78.170706] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 78.170795] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 78.175336] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 78.177687] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 78.181020] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 78.189398] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 78.192064] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 78.258098] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 78.272272] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 78.289331] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 78.528142] [ 78.528779] ============================= [ 78.529535] WARNING: suspicious RCU usage [ 78.530204] 6.16.0-rc4-next-20250703 #1 Not tainted [ 78.534408] ----------------------------- [ 78.535106] fs/proc/proc_sysctl.c:934 suspicious rcu_dereference_check() usage! [ 78.536304] [ 78.536304] other info that might help us debug this: [ 78.536304] [ 78.537622] [ 78.537622] rcu_scheduler_active = 2, debug_locks = 1 [ 78.538695] 3 locks held by syz-executor.3/286: [ 78.539484] #0: ffff88800ece2400 (sb_writers#4){.+.+}-{0:0}, at: path_openat+0x1cd3/0x2880 [ 78.540933] #1: ffff888009032618 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: path_openat+0x1308/0x2880 [ 78.542600] #2: ffff888018f190f8 (&lockref->lock){+.+.}-{3:3}, at: d_alloc_parallel+0xf97/0x1330 [ 78.544193] [ 78.544193] stack backtrace: [ 78.544994] CPU: 1 UID: 0 PID: 286 Comm: syz-executor.3 Not tainted 6.16.0-rc4-next-20250703 #1 PREEMPT(voluntary) [ 78.545025] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 78.545041] Call Trace: [ 78.545052] [ 78.545061] dump_stack_lvl+0xfa/0x120 [ 78.545103] lockdep_rcu_suspicious+0x152/0x1c0 [ 78.545132] proc_sys_compare+0x28a/0x340 [ 78.545155] ? __pfx_proc_sys_compare+0x10/0x10 [ 78.545181] d_same_name+0x229/0x2e0 [ 78.545220] d_alloc_parallel+0x7c1/0x1330 [ 78.545260] ? __pfx_d_alloc_parallel+0x10/0x10 [ 78.545289] ? __pfx_default_wake_function+0x10/0x10 [ 78.545323] ? __d_lookup+0x25f/0x490 [ 78.545374] lookup_open.isra.0+0x64f/0x1530 [ 78.545411] ? __pfx_lookup_open.isra.0+0x10/0x10 [ 78.545458] ? mnt_get_write_access+0x81/0x2d0 [ 78.545480] ? mnt_get_write_access+0x1ea/0x2d0 [ 78.545511] path_openat+0xc26/0x2880 [ 78.545553] ? __lock_acquire+0x694/0x1b70 [ 78.545577] ? __pfx_path_openat+0x10/0x10 [ 78.545620] do_filp_open+0x1e8/0x450 [ 78.545653] ? __pfx_do_filp_open+0x10/0x10 [ 78.545698] ? find_held_lock+0x2b/0x80 [ 78.545730] ? alloc_fd+0x2c1/0x560 [ 78.545759] ? lock_release+0xc8/0x290 [ 78.545789] ? alloc_fd+0x2c1/0x560 [ 78.545829] do_sys_openat2+0x104/0x1b0 [ 78.545855] ? __pfx_do_sys_openat2+0x10/0x10 [ 78.545889] ? rcu_read_unlock+0x2d/0xb0 [ 78.545913] ? lock_release+0xc8/0x290 [ 78.545943] __x64_sys_openat+0x142/0x200 [ 78.545970] ? __pfx___x64_sys_openat+0x10/0x10 [ 78.546004] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 78.546045] do_syscall_64+0xbf/0x360 [ 78.546070] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.546094] RIP: 0033:0x7fd31cc6aa04 [ 78.546112] 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 [ 78.546134] RSP: 002b:00007ffdd0e27870 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 78.546156] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fd31cc6aa04 [ 78.546171] RDX: 0000000000080001 RSI: 00007fd31cd10f61 RDI: 00000000ffffff9c [ 78.546185] RBP: 00007fd31cd10f61 R08: 0000000000000000 R09: 00007ffdd0e27860 [ 78.546200] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080001 [ 78.546214] R13: 00007ffdd0e27910 R14: 0000000000000000 R15: 00000000000000f8 [ 78.546245] [ 79.995664] Bluetooth: hci0: command tx timeout [ 79.996626] Bluetooth: hci1: command tx timeout [ 80.252721] Bluetooth: hci6: command tx timeout [ 80.253531] Bluetooth: hci4: command tx timeout [ 80.254282] Bluetooth: hci2: command tx timeout [ 80.255929] Bluetooth: hci3: command tx timeout [ 80.316268] Bluetooth: hci7: command tx timeout [ 80.317274] Bluetooth: hci5: command tx timeout [ 82.042953] Bluetooth: hci0: command tx timeout [ 82.043418] Bluetooth: hci1: command tx timeout [ 82.299932] Bluetooth: hci2: command tx timeout [ 82.300418] Bluetooth: hci6: command tx timeout [ 82.300824] Bluetooth: hci4: command tx timeout [ 82.300853] Bluetooth: hci3: command tx timeout [ 82.362958] Bluetooth: hci5: command tx timeout [ 82.362991] Bluetooth: hci7: command tx timeout [ 84.091961] Bluetooth: hci1: command tx timeout [ 84.092421] Bluetooth: hci0: command tx timeout [ 84.347082] Bluetooth: hci3: command tx timeout [ 84.348154] Bluetooth: hci2: command tx timeout [ 84.348516] Bluetooth: hci6: command tx timeout [ 84.348824] Bluetooth: hci4: command tx timeout [ 84.412913] Bluetooth: hci5: command tx timeout [ 84.413318] Bluetooth: hci7: command tx timeout [ 86.139126] Bluetooth: hci0: command tx timeout [ 86.139583] Bluetooth: hci1: command tx timeout [ 86.395050] Bluetooth: hci4: command tx timeout [ 86.395497] Bluetooth: hci6: command tx timeout [ 86.396055] Bluetooth: hci2: command tx timeout [ 86.396483] Bluetooth: hci3: command tx timeout [ 86.459091] Bluetooth: hci7: command tx timeout [ 86.459192] Bluetooth: hci5: command tx timeout VM DIAGNOSIS: 10:14:03 Registers: info registers vcpu 0 RAX=1ffffffff0d104a0 RBX=0000000000000001 RCX=ffffffff868824fe RDX=0000000000000000 RSI=dffffc0000000000 RDI=ffff8880171c7400 RBP=ffff8880171c73f0 RSP=ffff8880171c7328 R8 =ffffffff86882502 R9 =ffff8880171c73d8 R10=000000000003baa4 R11=0000000000022427 R12=ffff8880171c73f8 R13=ffff8880171c73e0 R14=ffff8880171c7af0 R15=ffff8880171c7398 RIP=ffffffff813548f4 RFL=00000216 [----AP-] 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 00007f1c4a8f2540 00000000 00000000 GS =0000 ffff8880e55f2000 00000000 00000000 LDT=0000 fffffe5100000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f1c4a9c3710 CR3=000000000c43f000 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=000000ff0000000000000000000000ff XMM01=ffffff0000ff00ffffffffffffffff00 XMM02=494c4700362e322e325f4342494c4700 XMM03=00000000000000000000000000004700 XMM04=4342494c4700362e322e325f4342494c 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=0000000000000074 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff828b5535 RDI=ffffffff8871ef20 RBP=ffffffff8871eee0 RSP=ffff88801671f2b8 R8 =0000000000000000 R9 =ffffed10015f9046 R10=0000000000000074 R11=0000000000000001 R12=0000000000000074 R13=0000000000000010 R14=ffffffff8871eee0 R15=ffffffff828b5520 RIP=ffffffff828b558d 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 0000555583844400 00000000 00000000 GS =0000 ffff8880e56f2000 00000000 00000000 LDT=0000 fffffe4900000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f6bfde6c000 CR3=000000003c404000 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=0000000000000000414e5175cffd65d7 XMM01=00000000000000003f847ae147ae147b XMM02=00000000000000000000000000000000 XMM03=00000000000000003f744031be711a6e XMM04=000000c00001c1a0000000c00001c190 XMM05=000000c00001c0c0000000c00001c070 XMM06=000000c00001c060000000c00001c090 XMM07=000000c00001c080000000c00001c050 XMM08=000000c00001c920000000c00001c9b0 XMM09=000000c00001c970000000c00001c9f0 XMM10=000000c00001c9c0000000c00001ca20 XMM11=000000c00001c9e0000000c00001c9d0 XMM12=000000c00001c980000000c00001c950 XMM13=000000c0002c8ff0000000c0002c8fc0 XMM14=000000c00001ce70000000c00001cec0 XMM15=000000c00001ce90000000c00001cef0