Warning: Permanently added '[localhost]:54142' (ECDSA) to the list of known hosts. 2025/07/03 10:06:25 fuzzer started 2025/07/03 10:06:26 dialing manager at localhost:33709 syzkaller login: [ 52.919421] cgroup: Unknown subsys name 'net' [ 53.008180] cgroup: Unknown subsys name 'cpuset' [ 53.029763] cgroup: Unknown subsys name 'rlimit' 2025/07/03 10:06:37 syscalls: 2214 2025/07/03 10:06:37 code coverage: enabled 2025/07/03 10:06:37 comparison tracing: enabled 2025/07/03 10:06:37 extra coverage: enabled 2025/07/03 10:06:37 setuid sandbox: enabled 2025/07/03 10:06:37 namespace sandbox: enabled 2025/07/03 10:06:37 Android sandbox: enabled 2025/07/03 10:06:37 fault injection: enabled 2025/07/03 10:06:37 leak checking: enabled 2025/07/03 10:06:37 net packet injection: enabled 2025/07/03 10:06:37 net device setup: enabled 2025/07/03 10:06:37 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/07/03 10:06:37 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/07/03 10:06:37 USB emulation: enabled 2025/07/03 10:06:37 hci packet injection: enabled 2025/07/03 10:06:37 wifi device emulation: enabled 2025/07/03 10:06:37 802.15.4 emulation: enabled 2025/07/03 10:06:37 fetching corpus: 0, signal 0/2000 (executing program) 2025/07/03 10:06:37 fetching corpus: 48, signal 18218/21773 (executing program) 2025/07/03 10:06:37 fetching corpus: 98, signal 25831/30869 (executing program) 2025/07/03 10:06:37 fetching corpus: 148, signal 33816/40161 (executing program) 2025/07/03 10:06:37 fetching corpus: 198, signal 38456/46112 (executing program) 2025/07/03 10:06:37 fetching corpus: 248, signal 44382/53138 (executing program) 2025/07/03 10:06:37 fetching corpus: 298, signal 47024/57014 (executing program) 2025/07/03 10:06:37 fetching corpus: 348, signal 50536/61625 (executing program) 2025/07/03 10:06:37 fetching corpus: 398, signal 54027/66113 (executing program) 2025/07/03 10:06:37 fetching corpus: 448, signal 56409/69568 (executing program) 2025/07/03 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(executing program) 2025/07/03 10:06:55 starting 8 fuzzer processes 10:06:55 executing program 0: r0 = syz_open_dev$loop(&(0x7f0000000000), 0x0, 0x0) ioctl$IOC_PR_RELEASE(r0, 0x401070ca, 0x0) 10:06:55 executing program 1: r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) fcntl$getflags(r0, 0xb) 10:06:55 executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f00000000c0)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) sync_file_range(r0, 0x0, 0x0, 0x0) 10:06:55 executing program 3: mq_unlink(&(0x7f0000000000)='/proc/thread-self\x00') [ 80.158281] audit: type=1400 audit(1751537215.164:7): avc: denied { execmem } for pid=275 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 10:06:55 executing program 4: tgkill(0x0, 0xffffffffffffffff, 0x0) 10:06:55 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000000)='net/dev\x00') read$eventfd(r0, &(0x7f00000001c0), 0x8) 10:06:55 executing program 6: perf_event_open(&(0x7f00000004c0)={0x8, 0x80, 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, 0x0, @perf_config_ext={0x8000000000}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) 10:06:55 executing program 7: getsockopt$inet6_IPV6_XFRM_POLICY(0xffffffffffffffff, 0x29, 0x23, 0x0, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, 0x0) ioctl$sock_ipv6_tunnel_SIOCDELPRL(0xffffffffffffffff, 0x89f6, 0x0) syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000002900)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) [ 81.500305] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 81.519944] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 81.522472] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 81.525351] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 81.526884] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 81.528485] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 81.533782] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 81.534182] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 81.537671] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 81.539000] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 81.539261] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 81.541304] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 81.542972] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 81.547746] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 81.553203] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 81.555505] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 81.557385] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 81.559100] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 81.560364] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 81.564286] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 81.568447] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 81.570336] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 81.572132] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 81.573412] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 81.574639] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 81.579260] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 81.582648] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 81.587019] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 81.591053] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 81.598032] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 81.600708] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 81.603987] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 81.605728] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 81.606986] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 81.620412] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 81.622297] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 81.623955] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 81.627349] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 81.636706] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 81.653181] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 81.790238] [ 81.790887] ============================= [ 81.791473] WARNING: suspicious RCU usage [ 81.792145] 6.16.0-rc4-next-20250703 #1 Not tainted [ 81.794444] ----------------------------- [ 81.796549] fs/proc/proc_sysctl.c:934 suspicious rcu_dereference_check() usage! [ 81.799870] [ 81.799870] other info that might help us debug this: [ 81.799870] [ 81.801371] [ 81.801371] rcu_scheduler_active = 2, debug_locks = 1 [ 81.802292] 3 locks held by syz-executor.7/292: [ 81.802990] #0: ffff88800f562400 (sb_writers#4){.+.+}-{0:0}, at: path_openat+0x1cd3/0x2880 [ 81.804254] #1: ffff8880092c6618 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: path_openat+0x1308/0x2880 [ 81.805702] #2: ffff8880195b33e8 (&lockref->lock){+.+.}-{3:3}, at: d_alloc_parallel+0xf97/0x1330 [ 81.807031] [ 81.807031] stack backtrace: [ 81.807666] CPU: 0 UID: 0 PID: 292 Comm: syz-executor.7 Not tainted 6.16.0-rc4-next-20250703 #1 PREEMPT(voluntary) [ 81.807694] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 81.807706] Call Trace: [ 81.807714] [ 81.807723] dump_stack_lvl+0xfa/0x120 [ 81.807762] lockdep_rcu_suspicious+0x152/0x1c0 [ 81.807796] proc_sys_compare+0x28a/0x340 [ 81.807817] ? __pfx_proc_sys_compare+0x10/0x10 [ 81.807840] d_same_name+0x229/0x2e0 [ 81.807876] d_alloc_parallel+0x7c1/0x1330 [ 81.807912] ? __pfx_d_alloc_parallel+0x10/0x10 [ 81.807940] ? __pfx_default_wake_function+0x10/0x10 [ 81.807972] ? __d_lookup+0x25f/0x490 [ 81.808004] lookup_open.isra.0+0x64f/0x1530 [ 81.808037] ? __pfx_lookup_open.isra.0+0x10/0x10 [ 81.808080] ? mnt_get_write_access+0x81/0x2d0 [ 81.808100] ? mnt_get_write_access+0x1ea/0x2d0 [ 81.808128] path_openat+0xc26/0x2880 [ 81.808167] ? __lock_acquire+0x694/0x1b70 [ 81.808189] ? __pfx_path_openat+0x10/0x10 [ 81.808229] do_filp_open+0x1e8/0x450 [ 81.808259] ? __pfx_do_filp_open+0x10/0x10 [ 81.808313] ? find_held_lock+0x2b/0x80 [ 81.808352] ? alloc_fd+0x2c1/0x560 [ 81.808380] ? lock_release+0xc8/0x290 [ 81.808408] ? alloc_fd+0x2c1/0x560 [ 81.808444] do_sys_openat2+0x104/0x1b0 [ 81.808469] ? __pfx_do_sys_openat2+0x10/0x10 [ 81.808496] ? lock_release+0xc8/0x290 [ 81.808525] __x64_sys_openat+0x142/0x200 [ 81.808550] ? __pfx___x64_sys_openat+0x10/0x10 [ 81.808587] do_syscall_64+0xbf/0x360 [ 81.808611] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 81.808634] RIP: 0033:0x7fb2d0296a04 [ 81.808650] 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 [ 81.808670] RSP: 002b:00007ffd20acdbd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 81.808690] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fb2d0296a04 [ 81.808704] RDX: 0000000000080001 RSI: 00007fb2d033cf61 RDI: 00000000ffffff9c [ 81.808717] RBP: 00007fb2d033cf61 R08: 0000000000000000 R09: 00007ffd20acdbc0 [ 81.808730] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080001 [ 81.808743] R13: 00007ffd20acdc70 R14: 0000000000000000 R15: 00000000000000f8 [ 81.808772] [ 83.584477] Bluetooth: hci4: command tx timeout [ 83.647105] Bluetooth: hci2: command tx timeout [ 83.647425] Bluetooth: hci6: command tx timeout [ 83.648646] Bluetooth: hci3: command tx timeout [ 83.649249] Bluetooth: hci5: command tx timeout [ 83.711938] Bluetooth: hci1: command tx timeout [ 83.712973] Bluetooth: hci7: command tx timeout [ 83.713477] Bluetooth: hci0: command tx timeout [ 85.631932] Bluetooth: hci4: command tx timeout [ 85.696014] Bluetooth: hci6: command tx timeout [ 85.696477] Bluetooth: hci3: command tx timeout [ 85.697403] Bluetooth: hci5: command tx timeout [ 85.697807] Bluetooth: hci2: command tx timeout [ 85.759136] Bluetooth: hci1: command tx timeout [ 85.759602] Bluetooth: hci0: command tx timeout [ 85.760837] Bluetooth: hci7: command tx timeout [ 87.679030] Bluetooth: hci4: command tx timeout [ 87.743844] Bluetooth: hci2: command tx timeout [ 87.744278] Bluetooth: hci6: command tx timeout [ 87.744666] Bluetooth: hci3: command tx timeout [ 87.745843] Bluetooth: hci5: command tx timeout [ 87.806964] Bluetooth: hci0: command tx timeout [ 87.807369] Bluetooth: hci7: command tx timeout [ 87.807758] Bluetooth: hci1: command tx timeout [ 89.726952] Bluetooth: hci4: command tx timeout [ 89.790896] Bluetooth: hci6: command tx timeout [ 89.791339] Bluetooth: hci2: command tx timeout [ 89.791720] Bluetooth: hci3: command tx timeout [ 89.792156] Bluetooth: hci5: command tx timeout [ 89.855032] Bluetooth: hci1: command tx timeout [ 89.855457] Bluetooth: hci7: command tx timeout [ 89.855998] Bluetooth: hci0: command tx timeout VM DIAGNOSIS: 10:06:57 Registers: info registers vcpu 0 RAX=0000000000000005 RBX=00000000000003f9 RCX=0000000000000000 RDX=00000000000003f9 RSI=ffffffff828b5535 RDI=ffffffff8871ef20 RBP=ffffffff8871eee0 RSP=ffff888013d0f2b8 R8 =0000000000000000 R9 =ffffed10016d0046 R10=0000000000000000 R11=0000000000000001 R12=0000000000000005 R13=0000000000000010 R14=ffffffff8871eee0 R15=ffffffff828b5520 RIP=ffffffff828b558d RFL=00000006 [-----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 0000555571640400 00000000 00000000 GS =0000 ffff8880e55f2000 00000000 00000000 LDT=0000 fffffe4f00000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fceff04c27c CR3=000000003d770000 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=00000000000000004150d60000000000 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 info registers vcpu 1 RAX=0000000000000001 RBX=0000000000000002 RCX=0000000000000001 RDX=0000000000000000 RSI=ffffffff85c1cb80 RDI=ffff88800de2dd00 RBP=ffffffff85c1cb80 RSP=ffff88806cf08c40 R8 =0000000000000000 R9 =fffffbfff0c871aa R10=ffffffff86438d57 R11=ffff88806cf37058 R12=ffff88800de2d280 R13=ffff88800de2dcd8 R14=00000000ffffffff R15=ffff88800de2dd00 RIP=ffffffff84b7f09f RFL=00000057 [---ZAPC] 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 ffff8880e56f2000 00000000 00000000 LDT=0000 fffffe5800000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f2fe57d0000 CR3=000000003dc35000 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