Warning: Permanently added '[localhost]:8305' (ECDSA) to the list of known hosts. 2025/07/04 11:14:45 fuzzer started 2025/07/04 11:14:45 dialing manager at localhost:42083 syzkaller login: [ 48.832516] cgroup: Unknown subsys name 'net' [ 48.915000] cgroup: Unknown subsys name 'cpuset' [ 48.941453] cgroup: Unknown subsys name 'rlimit' 2025/07/04 11:14:55 syscalls: 2214 2025/07/04 11:14:55 code coverage: enabled 2025/07/04 11:14:55 comparison tracing: enabled 2025/07/04 11:14:55 extra coverage: enabled 2025/07/04 11:14:55 setuid sandbox: enabled 2025/07/04 11:14:55 namespace sandbox: enabled 2025/07/04 11:14:55 Android sandbox: enabled 2025/07/04 11:14:55 fault injection: enabled 2025/07/04 11:14:55 leak checking: enabled 2025/07/04 11:14:55 net packet injection: enabled 2025/07/04 11:14:55 net device setup: enabled 2025/07/04 11:14:55 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/07/04 11:14:55 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/07/04 11:14:55 USB emulation: enabled 2025/07/04 11:14:55 hci packet injection: enabled 2025/07/04 11:14:55 wifi device emulation: enabled 2025/07/04 11:14:55 802.15.4 emulation: enabled 2025/07/04 11:14:55 fetching corpus: 0, signal 0/2000 (executing program) 2025/07/04 11:14:55 fetching corpus: 50, signal 17573/21155 (executing program) 2025/07/04 11:14:55 fetching corpus: 100, signal 33479/38251 (executing program) 2025/07/04 11:14:55 fetching corpus: 150, signal 43077/48968 (executing program) 2025/07/04 11:14:56 fetching corpus: 200, signal 46214/53371 (executing program) 2025/07/04 11:14:56 fetching corpus: 250, signal 49681/58037 (executing program) 2025/07/04 11:14:56 fetching corpus: 300, signal 53651/63062 (executing program) 2025/07/04 11:14:56 fetching corpus: 350, signal 57264/67692 (executing program) 2025/07/04 11:14:56 fetching corpus: 400, signal 59621/71118 (executing program) 2025/07/04 11:14:56 fetching corpus: 450, signal 61242/73794 (executing program) 2025/07/04 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165704/166731 (executing program) 2025/07/04 11:15:10 fetching corpus: 9962, signal 165704/166731 (executing program) 2025/07/04 11:15:13 starting 8 fuzzer processes 11:15:13 executing program 0: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f00000000c0)={0x1, &(0x7f0000000040)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) getuid() 11:15:13 executing program 1: prctl$PR_SET_KEEPCAPS(0x2f, 0x4) 11:15:13 executing program 2: r0 = socket$inet6_udp(0xa, 0x2, 0x0) getsockopt$IP6T_SO_GET_REVISION_MATCH(r0, 0x29, 0x44, &(0x7f0000000040)={'ipvs\x00'}, &(0x7f0000000080)=0x1e) close_range(r0, 0xffffffffffffffff, 0x0) 11:15:13 executing program 3: r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./cgroup.net/cgroup.procs\x00', 0xa002, 0x0) write$cgroup_pid(r0, &(0x7f00000000c0), 0x12) 11:15:13 executing program 4: rmdir(&(0x7f0000000280)='.\x00') 11:15:13 executing program 5: r0 = getpid() r1 = getpid() kcmp$KCMP_EPOLL_TFD(r0, r1, 0x7, 0xffffffffffffffff, 0x0) [ 76.294277] audit: type=1400 audit(1751627713.085:7): avc: denied { execmem } for pid=271 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 11:15:13 executing program 6: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x14, 0x1, 0x4, 0x301}, 0x14}}, 0x0) recvmsg(r0, &(0x7f0000001700)={0x0, 0x0, 0x0}, 0x2) 11:15:13 executing program 7: r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000440), 0x4840, 0x0) r1 = syz_open_dev$loop(&(0x7f0000000440), 0x0, 0x0) ioctl$LOOP_SET_FD(r1, 0x4c00, r0) [ 77.553119] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 77.557571] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 77.560373] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 77.564867] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 77.569632] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 77.572174] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 77.577545] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 77.580012] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 77.582226] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 77.582610] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 77.588044] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 77.597468] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 77.607190] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 77.608823] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 77.610724] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 77.617810] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 77.619130] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 77.620917] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 77.622910] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 77.625463] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 77.630957] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 77.631843] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 77.632297] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 77.632988] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 77.634230] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 77.636216] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 77.637032] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 77.638772] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 77.639904] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 77.640832] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 77.641635] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 77.643295] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 77.643753] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 77.647217] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 77.649012] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 77.650238] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 77.654993] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 77.655642] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 77.658316] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 77.661142] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 77.847405] [ 77.848095] ============================= [ 77.848900] WARNING: suspicious RCU usage [ 77.849606] 6.16.0-rc4-next-20250704 #1 Not tainted [ 77.852516] ----------------------------- [ 77.855717] fs/proc/proc_sysctl.c:934 suspicious rcu_dereference_check() usage! [ 77.857057] [ 77.857057] other info that might help us debug this: [ 77.857057] [ 77.858441] [ 77.858441] rcu_scheduler_active = 2, debug_locks = 1 [ 77.859503] 3 locks held by syz-executor.6/287: [ 77.860276] #0: ffff88800f54c400 (sb_writers#4){.+.+}-{0:0}, at: path_openat+0x1cd3/0x2880 [ 77.861707] #1: ffff88800ba66618 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: path_openat+0x1308/0x2880 [ 77.863409] #2: ffff8880157c79c8 (&lockref->lock){+.+.}-{3:3}, at: d_alloc_parallel+0xf97/0x1330 [ 77.865101] [ 77.865101] stack backtrace: [ 77.865951] CPU: 1 UID: 0 PID: 287 Comm: syz-executor.6 Not tainted 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 77.865981] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 77.865994] Call Trace: [ 77.866003] [ 77.866012] dump_stack_lvl+0xfa/0x120 [ 77.866041] lockdep_rcu_suspicious+0x152/0x1c0 [ 77.866070] proc_sys_compare+0x28a/0x340 [ 77.866094] ? __pfx_proc_sys_compare+0x10/0x10 [ 77.866117] d_same_name+0x229/0x2e0 [ 77.866155] d_alloc_parallel+0x7c1/0x1330 [ 77.866193] ? __pfx_d_alloc_parallel+0x10/0x10 [ 77.866221] ? __pfx_default_wake_function+0x10/0x10 [ 77.866255] ? __d_lookup+0x25f/0x490 [ 77.866289] lookup_open.isra.0+0x64f/0x1530 [ 77.866323] ? __pfx_lookup_open.isra.0+0x10/0x10 [ 77.866369] ? mnt_get_write_access+0x81/0x2d0 [ 77.866390] ? mnt_get_write_access+0x1ea/0x2d0 [ 77.866419] path_openat+0xc26/0x2880 [ 77.866460] ? __lock_acquire+0x694/0x1b70 [ 77.866483] ? __pfx_path_openat+0x10/0x10 [ 77.866524] do_filp_open+0x1e8/0x450 [ 77.866555] ? __pfx_do_filp_open+0x10/0x10 [ 77.866598] ? find_held_lock+0x2b/0x80 [ 77.866628] ? alloc_fd+0x2c1/0x560 [ 77.866659] ? lock_release+0xc8/0x290 [ 77.866695] ? alloc_fd+0x2c1/0x560 [ 77.866733] do_sys_openat2+0x104/0x1b0 [ 77.866759] ? __pfx_do_sys_openat2+0x10/0x10 [ 77.866786] ? __fput+0x67b/0xb50 [ 77.866816] __x64_sys_openat+0x142/0x200 [ 77.866842] ? __pfx___x64_sys_openat+0x10/0x10 [ 77.866866] ? __pfx_fput_close_sync+0x10/0x10 [ 77.866903] do_syscall_64+0xbf/0x360 [ 77.866933] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.866964] RIP: 0033:0x7feed9e37a04 [ 77.866982] 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 [ 77.867004] RSP: 002b:00007ffd1d2a2010 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 77.867025] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007feed9e37a04 [ 77.867039] RDX: 0000000000080001 RSI: 00007feed9eee29e RDI: 00000000ffffff9c [ 77.867054] RBP: 00007feed9eee29e R08: 0000000000000000 R09: 00007ffd1d2a2000 [ 77.867067] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080001 [ 77.867081] R13: 00007ffd1d2a20b0 R14: 0000000000000000 R15: 00000000000000f8 [ 77.867111] [ 79.640413] Bluetooth: hci1: command tx timeout [ 79.641199] Bluetooth: hci0: command tx timeout [ 79.703773] Bluetooth: hci3: command tx timeout [ 79.704412] Bluetooth: hci4: command tx timeout [ 79.704489] Bluetooth: hci5: command tx timeout [ 79.768938] Bluetooth: hci2: command tx timeout [ 79.768951] Bluetooth: hci7: command tx timeout [ 79.769171] Bluetooth: hci6: command tx timeout [ 81.688826] Bluetooth: hci1: command tx timeout [ 81.689298] Bluetooth: hci0: command tx timeout [ 81.751849] Bluetooth: hci3: command tx timeout [ 81.752943] Bluetooth: hci4: command tx timeout [ 81.753337] Bluetooth: hci5: command tx timeout [ 81.817775] Bluetooth: hci6: command tx timeout [ 81.818212] Bluetooth: hci2: command tx timeout [ 81.818608] Bluetooth: hci7: command tx timeout [ 83.735769] Bluetooth: hci0: command tx timeout [ 83.736547] Bluetooth: hci1: command tx timeout [ 83.799865] Bluetooth: hci5: command tx timeout [ 83.799935] Bluetooth: hci4: command tx timeout [ 83.800613] Bluetooth: hci3: command tx timeout [ 83.863814] Bluetooth: hci7: command tx timeout [ 83.863970] Bluetooth: hci2: command tx timeout [ 83.864245] Bluetooth: hci6: command tx timeout [ 85.783801] Bluetooth: hci0: command tx timeout [ 85.783815] Bluetooth: hci1: command tx timeout [ 85.847749] Bluetooth: hci4: command tx timeout [ 85.847892] Bluetooth: hci5: command tx timeout [ 85.849307] Bluetooth: hci3: command tx timeout [ 85.911885] Bluetooth: hci6: command tx timeout [ 85.912065] Bluetooth: hci7: command tx timeout [ 85.912663] Bluetooth: hci2: command tx timeout VM DIAGNOSIS: 11:15:14 Registers: info registers vcpu 0 RAX=ffff88800e25fb40 RBX=000000000008d100 RCX=ffffffff8151f5b3 RDX=0000000000000040 RSI=0000000000000000 RDI=ffff88800e25fb40 RBP=ffff88800e25fb40 RSP=ffff88801715f9e0 R8 =0000000000000001 R9 =ffffed1002e2bf2c R10=0000000000000003 R11=0000000000000001 R12=ffff88800e3eae48 R13=0000000000000246 R14=0000000000000000 R15=ffff88800e25fb40 RIP=ffffffff81b1e3de RFL=00000046 [---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 0000000000000000 00000000 00000000 GS =0000 ffff8880e55f3000 00000000 00000000 LDT=0000 fffffe1600000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f07fd9738e0 CR3=000000003ad66000 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=000000000000ff000000000000000000 XMM01=00ff0000000001002e6f732e6362696c XMM02=312e312e6f732e6f747079726362696c XMM03=00000000000000000000000000000000 XMM04=000000000000ff000000000000000000 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=dffffc0000000060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff828b59b0 RDI=ffffffff8871dee0 RBP=ffffffff8871dea0 RSP=ffff888015247260 R8 =0000000000000000 R9 =ffffed10016d4046 R10=00000000000fe503 R11=0000000000000001 R12=0000000000000823 R13=0000000000000020 R14=fffffbfff10e3c2e R15=dffffc0000000000 RIP=ffffffff828b5a05 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 0000555570d23400 00000000 00000000 GS =0000 ffff8880e56f3000 00000000 00000000 LDT=0000 fffffe5a00000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007ff1fca61368 CR3=000000003aa3d000 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=322e6f732e6c6462696c2f756e672d78 XMM02=00322e6f732e6c6462696c2f756e672d XMM03=78756e696c2d34365f3638782f62696c XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000