Warning: Permanently added '[localhost]:10265' (ECDSA) to the list of known hosts. 2025/07/02 10:43:23 fuzzer started 2025/07/02 10:43:23 dialing manager at localhost:45015 syzkaller login: [ 56.818751] cgroup: Unknown subsys name 'net' [ 56.907370] cgroup: Unknown subsys name 'cpuset' [ 56.936921] cgroup: Unknown subsys name 'rlimit' 2025/07/02 10:43:33 syscalls: 2214 2025/07/02 10:43:33 code coverage: enabled 2025/07/02 10:43:33 comparison tracing: enabled 2025/07/02 10:43:33 extra coverage: enabled 2025/07/02 10:43:33 setuid sandbox: enabled 2025/07/02 10:43:33 namespace sandbox: enabled 2025/07/02 10:43:33 Android sandbox: enabled 2025/07/02 10:43:33 fault injection: enabled 2025/07/02 10:43:33 leak checking: enabled 2025/07/02 10:43:33 net packet injection: enabled 2025/07/02 10:43:33 net device setup: enabled 2025/07/02 10:43:33 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/07/02 10:43:33 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/07/02 10:43:33 USB emulation: enabled 2025/07/02 10:43:33 hci packet injection: enabled 2025/07/02 10:43:33 wifi device emulation: enabled 2025/07/02 10:43:33 802.15.4 emulation: enabled 2025/07/02 10:43:33 fetching corpus: 0, signal 0/2000 (executing program) 2025/07/02 10:43:33 fetching corpus: 48, signal 20135/23640 (executing program) 2025/07/02 10:43:33 fetching corpus: 98, signal 26866/31882 (executing program) 2025/07/02 10:43:33 fetching corpus: 148, signal 34688/40975 (executing program) 2025/07/02 10:43:33 fetching corpus: 198, signal 38220/45855 (executing program) 2025/07/02 10:43:34 fetching corpus: 248, signal 46496/55025 (executing program) 2025/07/02 10:43:34 fetching corpus: 297, signal 49704/59381 (executing program) 2025/07/02 10:43:34 fetching corpus: 347, signal 53388/64114 (executing program) 2025/07/02 10:43:34 fetching corpus: 397, signal 55923/67674 (executing program) 2025/07/02 10:43:34 fetching corpus: 447, signal 58653/71400 (executing program) 2025/07/02 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10:43:50 executing program 2: r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) recvmmsg(r0, &(0x7f00000007c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x40002040, 0x0) [ 83.218009] audit: type=1400 audit(1751453030.290:7): avc: denied { execmem } for pid=271 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 10:43:50 executing program 3: syz_open_dev$usbmon(&(0x7f0000000000), 0x8, 0x40400) 10:43:50 executing program 4: r0 = syz_open_procfs(0x0, &(0x7f0000000000)='net/ip6_tables_matches\x00') mmap(&(0x7f0000ffc000/0x2000)=nil, 0x2000, 0x0, 0x11, r0, 0x0) 10:43:50 executing program 5: 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) clone3(&(0x7f0000000640)={0x105000000, 0x0, 0x0, 0x0, {}, 0x0, 0x0, 0x0, 0x0}, 0x58) 10:43:50 executing program 6: r0 = socket$inet_udp(0x2, 0x2, 0x0) sendmsg$inet(r0, &(0x7f0000000680)={&(0x7f0000000000)={0x2, 0x4e23, @local}, 0x10, 0x0}, 0x0) 10:43:50 executing program 7: r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000002cc0), 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE(r0, 0xc08c5332, 0x0) ioctl$SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT(r0, 0xc08c5334, &(0x7f0000000080)) [ 84.472327] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 84.474723] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 84.480701] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 84.493468] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 84.496981] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 84.498768] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 84.501334] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 84.503051] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 84.506993] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 84.509798] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 84.517108] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 84.519892] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 84.524855] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 84.530204] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 84.537140] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 84.540984] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 84.542793] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 84.547746] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 84.551617] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 84.552934] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 84.554528] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 84.556190] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 84.567799] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 84.571355] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 84.572111] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 84.573970] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 84.577689] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 84.578322] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 84.579885] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 84.580336] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 84.587949] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 84.588383] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 84.593049] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 84.605951] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 84.607862] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 84.620777] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 84.630593] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 84.643071] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 84.643831] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 84.650748] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 84.802672] [ 84.803296] ============================= [ 84.804086] WARNING: suspicious RCU usage [ 84.804767] 6.16.0-rc4-next-20250702 #1 Not tainted [ 84.810924] ----------------------------- [ 84.811913] fs/proc/proc_sysctl.c:934 suspicious rcu_dereference_check() usage! [ 84.813127] [ 84.813127] other info that might help us debug this: [ 84.813127] [ 84.814448] [ 84.814448] rcu_scheduler_active = 2, debug_locks = 1 [ 84.815558] 3 locks held by syz-executor.1/282: [ 84.816313] #0: ffff88800cba8400 (sb_writers#4){.+.+}-{0:0}, at: path_openat+0x1cd3/0x2880 [ 84.817832] #1: ffff88800b8be618 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: path_openat+0x1308/0x2880 [ 84.819484] #2: ffff8880187f39c8 (&lockref->lock){+.+.}-{3:3}, at: d_alloc_parallel+0xf97/0x1330 [ 84.821046] [ 84.821046] stack backtrace: [ 84.821843] CPU: 0 UID: 0 PID: 282 Comm: syz-executor.1 Not tainted 6.16.0-rc4-next-20250702 #1 PREEMPT(voluntary) [ 84.821874] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 84.821887] Call Trace: [ 84.821896] [ 84.821906] dump_stack_lvl+0xfa/0x120 [ 84.821935] lockdep_rcu_suspicious+0x152/0x1c0 [ 84.821966] proc_sys_compare+0x28a/0x340 [ 84.821991] ? __pfx_proc_sys_compare+0x10/0x10 [ 84.822018] d_same_name+0x229/0x2e0 [ 84.822044] d_alloc_parallel+0x7c1/0x1330 [ 84.822086] ? __pfx_d_alloc_parallel+0x10/0x10 [ 84.822119] ? __pfx_default_wake_function+0x10/0x10 [ 84.822154] ? __d_lookup+0x25f/0x490 [ 84.822193] lookup_open.isra.0+0x64f/0x1530 [ 84.822232] ? __pfx_lookup_open.isra.0+0x10/0x10 [ 84.822284] ? mnt_get_write_access+0x81/0x2d0 [ 84.822308] ? mnt_get_write_access+0x1ea/0x2d0 [ 84.822342] path_openat+0xc26/0x2880 [ 84.822388] ? __lock_acquire+0x694/0x1b70 [ 84.822413] ? __pfx_path_openat+0x10/0x10 [ 84.822466] do_filp_open+0x1e8/0x450 [ 84.822501] ? __pfx_do_filp_open+0x10/0x10 [ 84.822549] ? find_held_lock+0x2b/0x80 [ 84.822581] ? alloc_fd+0x2c1/0x560 [ 84.822612] ? lock_release+0xc8/0x290 [ 84.822642] ? alloc_fd+0x2c1/0x560 [ 84.822685] do_sys_openat2+0x104/0x1b0 [ 84.822713] ? __pfx_do_sys_openat2+0x10/0x10 [ 84.822744] ? __fput+0x67b/0xb50 [ 84.822777] __x64_sys_openat+0x142/0x200 [ 84.822805] ? __pfx___x64_sys_openat+0x10/0x10 [ 84.822832] ? __pfx_fput_close_sync+0x10/0x10 [ 84.822874] do_syscall_64+0xbf/0x360 [ 84.822901] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.822925] RIP: 0033:0x7f4c24fada04 [ 84.822943] 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 [ 84.822965] RSP: 002b:00007ffcd8db1ea0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 84.822987] RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f4c24fada04 [ 84.823002] RDX: 0000000000080001 RSI: 00007f4c25064264 RDI: 00000000ffffff9c [ 84.823017] RBP: 00007f4c25064264 R08: 0000000000000000 R09: 00007ffcd8db1e90 [ 84.823032] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080001 [ 84.823046] R13: 00007ffcd8db1f40 R14: 0000000000000000 R15: 00000000000000f8 [ 84.823079] [ 86.624877] Bluetooth: hci5: command tx timeout [ 86.624899] Bluetooth: hci1: command tx timeout [ 86.625905] Bluetooth: hci3: command tx timeout [ 86.626868] Bluetooth: hci2: command tx timeout [ 86.627036] Bluetooth: hci0: command tx timeout [ 86.689502] Bluetooth: hci7: command tx timeout [ 86.691199] Bluetooth: hci6: command tx timeout [ 86.752760] Bluetooth: hci4: command tx timeout [ 88.672591] Bluetooth: hci3: command tx timeout [ 88.673167] Bluetooth: hci2: command tx timeout [ 88.674344] Bluetooth: hci0: command tx timeout [ 88.674480] Bluetooth: hci5: command tx timeout [ 88.674764] Bluetooth: hci1: command tx timeout [ 88.737203] Bluetooth: hci6: command tx timeout [ 88.737618] Bluetooth: hci7: command tx timeout [ 88.800834] Bluetooth: hci4: command tx timeout [ 90.720516] Bluetooth: hci0: command tx timeout [ 90.720980] Bluetooth: hci5: command tx timeout [ 90.721377] Bluetooth: hci1: command tx timeout [ 90.721893] Bluetooth: hci3: command tx timeout [ 90.722322] Bluetooth: hci2: command tx timeout [ 90.785613] Bluetooth: hci7: command tx timeout [ 90.786015] Bluetooth: hci6: command tx timeout [ 90.848481] Bluetooth: hci4: command tx timeout [ 92.768558] Bluetooth: hci2: command tx timeout [ 92.768982] Bluetooth: hci3: command tx timeout [ 92.769354] Bluetooth: hci1: command tx timeout [ 92.769789] Bluetooth: hci5: command tx timeout [ 92.769896] Bluetooth: hci0: command tx timeout [ 92.833455] Bluetooth: hci7: command tx timeout [ 92.833894] Bluetooth: hci6: command tx timeout [ 92.896569] Bluetooth: hci4: command tx timeout VM DIAGNOSIS: 10:43:52 Registers: info registers vcpu 0 RAX=0000000000000074 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff828ba3e5 RDI=ffffffff88722060 RBP=ffffffff88722020 RSP=ffff8880160472b8 R8 =0000000000000000 R9 =ffffed100149f046 R10=0000000000000074 R11=0000000000000001 R12=0000000000000074 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 0000555558e1f400 00000000 00000000 GS =0000 ffff8880e55ef000 00000000 00000000 LDT=0000 fffffe3300000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f1baaf96320 CR3=0000000036508000 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=000000000000000041427384f7359796 XMM01=00000000000000003f847ae147ae147b XMM02=00000000000000000000000000000000 XMM03=00000000000000003f7078db1a107d93 XMM04=732f6c61636f6c2f7273752f3d485441 XMM05=622f6c61636f6c2f7273752f3a6e6962 XMM06=73752f3a6e6962732f7273752f3a6e69 XMM07=6e69622f3a6e6962732f3a6e69622f72 XMM08=000000000000000a000000c000014016 XMM09=000000000000002a000000c000016000 XMM10=0000000000000009000000c000014040 XMM11=0000000000000007000000c000014049 XMM12=000000000000001c000000c000018000 XMM13=0000000000000041000000c00001a000 XMM14=000000000000000c000000c000014050 XMM15=000000000000000d000000c000014060 info registers vcpu 1 RAX=0000000000000005 RBX=ffff8880190d8000 RCX=0000000000000000 RDX=0000000000000005 RSI=0000000000000000 RDI=ffffffff85c1ccc0 RBP=ffff8880190d8a58 RSP=ffff888015b6f650 R8 =0000000000000000 R9 =0000000000000005 R10=0000000000000001 R11=0000000000000000 R12=ffff8880190d8a80 R13=0000000000000003 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff81519058 RFL=00000007 [-----PC] 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 0000555568594400 00000000 00000000 GS =0000 ffff8880e56ef000 00000000 00000000 LDT=0000 fffffe0100000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f435a51eb00 CR3=0000000031d18000 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=00000000000000003f847ae147ae147b XMM02=00000000000000000000000000000000 XMM03=00000000000000003f74257ff56f53ec XMM04=000000c0021f3a000000000000ea8a40 XMM05=000000c0021f3a400000000000ea8a40 XMM06=000000c0021f3a800000000000ea8a40 XMM07=000000c0021f3b400000000000ea8a40 XMM08=000000c001f928300000000000ea89c0 XMM09=000000c001f928400000000000ea89c0 XMM10=000000c001f928500000000000ea89c0 XMM11=000000c001f92ba00000000000ea89c0 XMM12=000000c001f92bc00000000000ea89c0 XMM13=000000c001f927500000000000ea89c0 XMM14=000000c001f927600000000000ea89c0 XMM15=000000c001f927700000000000ea89c0