Warning: Permanently added '[localhost]:7428' (ECDSA) to the list of known hosts. 2025/07/04 11:16:27 fuzzer started 2025/07/04 11:16:27 dialing manager at localhost:42083 syzkaller login: [ 58.884524] cgroup: Unknown subsys name 'net' [ 58.952226] cgroup: Unknown subsys name 'cpuset' [ 58.972441] cgroup: Unknown subsys name 'rlimit' 2025/07/04 11:16:38 syscalls: 2214 2025/07/04 11:16:38 code coverage: enabled 2025/07/04 11:16:38 comparison tracing: enabled 2025/07/04 11:16:38 extra coverage: enabled 2025/07/04 11:16:38 setuid sandbox: enabled 2025/07/04 11:16:38 namespace sandbox: enabled 2025/07/04 11:16:38 Android sandbox: enabled 2025/07/04 11:16:38 fault injection: enabled 2025/07/04 11:16:38 leak checking: enabled 2025/07/04 11:16:38 net packet injection: enabled 2025/07/04 11:16:38 net device setup: enabled 2025/07/04 11:16:38 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/07/04 11:16:38 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/07/04 11:16:38 USB emulation: enabled 2025/07/04 11:16:38 hci packet injection: enabled 2025/07/04 11:16:38 wifi device emulation: enabled 2025/07/04 11:16:38 802.15.4 emulation: enabled 2025/07/04 11:16:39 fetching corpus: 0, signal 0/2000 (executing program) 2025/07/04 11:16:39 fetching corpus: 49, signal 24657/28108 (executing program) 2025/07/04 11:16:39 fetching corpus: 99, signal 31263/36190 (executing program) 2025/07/04 11:16:39 fetching corpus: 149, signal 34510/40901 (executing program) 2025/07/04 11:16:39 fetching corpus: 199, signal 39392/47071 (executing program) 2025/07/04 11:16:40 fetching corpus: 249, signal 44032/52926 (executing program) 2025/07/04 11:16:40 fetching corpus: 299, signal 46347/56566 (executing program) 2025/07/04 11:16:40 fetching corpus: 349, signal 50880/62164 (executing program) 2025/07/04 11:16:40 fetching corpus: 399, signal 55719/67882 (executing program) 2025/07/04 11:16:40 fetching corpus: 449, signal 58764/71915 (executing program) 2025/07/04 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166225/167393 (executing program) 2025/07/04 11:17:06 fetching corpus: 10004, signal 166319/167393 (executing program) 2025/07/04 11:17:06 fetching corpus: 10004, signal 166319/167393 (executing program) 2025/07/04 11:17:08 starting 8 fuzzer processes 11:17:08 executing program 0: r0 = syz_io_uring_setup(0x2260, &(0x7f0000003a00)={0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000003a80), &(0x7f0000003ac0)) r1 = dup(r0) io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x1b, &(0x7f0000001680)=[{0x0}], 0x1) 11:17:08 executing program 2: r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) bind$bt_hci(r0, &(0x7f0000000000)={0x1f, 0x0, 0x1}, 0x6) 11:17:08 executing program 6: syz_mount_image$msdos(0xfffffffffffffffe, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000880)) 11:17:08 executing program 3: faccessat2(0xffffffffffffffff, 0x0, 0x160, 0x0) 11:17:08 executing program 4: setresuid(0x0, 0xee01, 0x0) r0 = socket$inet_udp(0x2, 0x2, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8953, 0x0) 11:17:08 executing program 1: r0 = syz_open_dev$tty20(0xc, 0x4, 0x1) ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000000)=0x13) ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000180)=0xfb) 11:17:08 executing program 5: r0 = socket$inet6_udplite(0xa, 0x2, 0x88) r1 = epoll_create(0xe9) epoll_ctl$EPOLL_CTL_ADD(r1, 0x4, r0, &(0x7f0000000280)={0x10000000}) [ 99.688204] audit: type=1400 audit(1751627828.480:7): avc: denied { execmem } for pid=278 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 11:17:08 executing program 7: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@ipv4={'\x00', '\xff\xff', @dev}}, 0x20) [ 100.957745] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 100.964035] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 100.966765] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 100.968252] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 100.971195] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 100.972688] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 100.974739] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 100.977720] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 100.979528] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 100.983550] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 100.986981] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 100.989837] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 100.992804] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 100.995511] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 100.999297] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 101.007341] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 101.009391] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 101.012785] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 101.026125] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 101.027604] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 101.035184] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 101.036623] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 101.039033] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 101.041284] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 101.042741] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 101.048586] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 101.050375] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 101.054025] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 101.055889] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 101.056823] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 101.060772] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 101.062076] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 101.065523] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 101.065849] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 101.067958] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 101.068671] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 101.073958] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 101.074048] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 101.081734] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 101.082399] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 101.289603] [ 101.290184] ============================= [ 101.290828] WARNING: suspicious RCU usage [ 101.291417] 6.16.0-rc4-next-20250704 #1 Not tainted [ 101.292419] ----------------------------- [ 101.294065] fs/proc/proc_sysctl.c:934 suspicious rcu_dereference_check() usage! [ 101.297151] [ 101.297151] other info that might help us debug this: [ 101.297151] [ 101.300067] [ 101.300067] rcu_scheduler_active = 2, debug_locks = 1 [ 101.301007] 3 locks held by syz-executor.5/292: [ 101.301678] #0: ffff88800f930400 (sb_writers#4){.+.+}-{0:0}, at: path_openat+0x1cd3/0x2880 [ 101.302977] #1: ffff88800bc9e618 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: path_openat+0x1308/0x2880 [ 101.304363] #2: ffff888015582b18 (&lockref->lock){+.+.}-{3:3}, at: d_alloc_parallel+0xf97/0x1330 [ 101.305722] [ 101.305722] stack backtrace: [ 101.306372] CPU: 1 UID: 0 PID: 292 Comm: syz-executor.5 Not tainted 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 101.306398] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 101.306410] Call Trace: [ 101.306418] [ 101.306426] dump_stack_lvl+0xfa/0x120 [ 101.306457] lockdep_rcu_suspicious+0x152/0x1c0 [ 101.306483] proc_sys_compare+0x28a/0x340 [ 101.306502] ? __pfx_proc_sys_compare+0x10/0x10 [ 101.306525] d_same_name+0x229/0x2e0 [ 101.306559] d_alloc_parallel+0x7c1/0x1330 [ 101.306595] ? __pfx_d_alloc_parallel+0x10/0x10 [ 101.306621] ? __pfx_default_wake_function+0x10/0x10 [ 101.306651] ? __d_lookup+0x25f/0x490 [ 101.306682] lookup_open.isra.0+0x64f/0x1530 [ 101.306714] ? __pfx_lookup_open.isra.0+0x10/0x10 [ 101.306757] ? mnt_get_write_access+0x81/0x2d0 [ 101.306776] ? mnt_get_write_access+0x1ea/0x2d0 [ 101.306804] path_openat+0xc26/0x2880 [ 101.306842] ? __lock_acquire+0x694/0x1b70 [ 101.306863] ? __pfx_path_openat+0x10/0x10 [ 101.306902] do_filp_open+0x1e8/0x450 [ 101.306931] ? __pfx_do_filp_open+0x10/0x10 [ 101.306971] ? find_held_lock+0x2b/0x80 [ 101.306999] ? alloc_fd+0x2c1/0x560 [ 101.307025] ? lock_release+0xc8/0x290 [ 101.307051] ? alloc_fd+0x2c1/0x560 [ 101.307087] do_sys_openat2+0x104/0x1b0 [ 101.307110] ? __pfx_do_sys_openat2+0x10/0x10 [ 101.307136] ? __fput+0x67b/0xb50 [ 101.307164] __x64_sys_openat+0x142/0x200 [ 101.307187] ? __pfx___x64_sys_openat+0x10/0x10 [ 101.307210] ? __pfx_fput_close_sync+0x10/0x10 [ 101.307245] do_syscall_64+0xbf/0x360 [ 101.307269] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 101.307290] RIP: 0033:0x7f6576455a04 [ 101.307307] 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 [ 101.307326] RSP: 002b:00007ffc2b9d8a50 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 101.307346] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6576455a04 [ 101.307359] RDX: 0000000000080001 RSI: 00007f657650c286 RDI: 00000000ffffff9c [ 101.307372] RBP: 00007f657650c286 R08: 0000000000000000 R09: 00007ffc2b9d8a40 [ 101.307385] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080001 [ 101.307397] R13: 00007ffc2b9d8af0 R14: 0000000000000000 R15: 00000000000000f8 [ 101.307425] [ 103.047126] Bluetooth: hci1: command tx timeout [ 103.047147] Bluetooth: hci0: command tx timeout [ 103.110782] Bluetooth: hci2: command tx timeout [ 103.111735] Bluetooth: hci4: command tx timeout [ 103.112912] Bluetooth: hci5: command tx timeout [ 103.174724] Bluetooth: hci7: command tx timeout [ 103.176101] Bluetooth: hci3: command tx timeout [ 103.176132] Bluetooth: hci6: command tx timeout [ 105.094532] Bluetooth: hci1: command tx timeout [ 105.094675] Bluetooth: hci0: command tx timeout [ 105.158575] Bluetooth: hci5: command tx timeout [ 105.158591] Bluetooth: hci4: command tx timeout [ 105.159503] Bluetooth: hci2: command tx timeout [ 105.222637] Bluetooth: hci6: command tx timeout [ 105.223963] Bluetooth: hci7: command tx timeout [ 105.223983] Bluetooth: hci3: command tx timeout [ 107.142561] Bluetooth: hci1: command tx timeout [ 107.143501] Bluetooth: hci0: command tx timeout [ 107.206548] Bluetooth: hci2: command tx timeout [ 107.206661] Bluetooth: hci4: command tx timeout [ 107.207002] Bluetooth: hci5: command tx timeout [ 107.270524] Bluetooth: hci7: command tx timeout [ 107.270988] Bluetooth: hci6: command tx timeout [ 107.271384] Bluetooth: hci3: command tx timeout [ 109.190684] Bluetooth: hci0: command tx timeout [ 109.191427] Bluetooth: hci1: command tx timeout [ 109.255660] Bluetooth: hci4: command tx timeout [ 109.256408] Bluetooth: hci2: command tx timeout [ 109.257284] Bluetooth: hci5: command tx timeout [ 109.318798] Bluetooth: hci3: command tx timeout [ 109.319731] Bluetooth: hci6: command tx timeout [ 109.319817] Bluetooth: hci7: command tx timeout VM DIAGNOSIS: 11:17:10 Registers: info registers vcpu 0 RAX=ffffffff81b62c50 RBX=ffffffff81604f40 RCX=ffff88801592f5cc RDX=1ffff11002b25eda RSI=ffffffff81b62c50 RDI=ffff88801592f740 RBP=ffff88801592f710 RSP=ffff88801592f670 R8 =0000000000000001 R9 =ffff88801592f6b8 R10=000000000003ba94 R11=0000000000026db3 R12=ffff88801592f740 R13=0000000000000000 R14=ffff888016d6d280 R15=0000000000092cc0 RIP=ffffffff81604f44 RFL=00000286 [--S--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 0000000000000000 00000000 00000000 GS =0000 ffff8880e55f3000 00000000 00000000 LDT=0000 fffffe5800000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f7842ad68e0 CR3=000000003c53c000 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=6c74637379735f636f72702f636f7270 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=676173752029286b636568635f65636e XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000068 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff828b5a45 RDI=ffffffff8871dee0 RBP=ffffffff8871dea0 RSP=ffff888017f2f2b8 R8 =0000000000000000 R9 =ffffed1001705046 R10=0000000000000068 R11=0000000000000001 R12=0000000000000068 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 0000555559beb400 00000000 00000000 GS =0000 ffff8880e56f3000 00000000 00000000 LDT=0000 fffffe4500000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f5f27ca6000 CR3=000000003e239000 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=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=0000000000000000bfe62e42fefa39ef XMM03=0000ff00000000000000000000000000 XMM04=732f6c61636f6c2f7273752f3d485441 XMM05=622f6c61636f6c2f7273752f3a6e6962 XMM06=73752f3a6e6962732f7273752f3a6e69 XMM07=6e69622f3a6e6962732f3a6e69622f72 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000