syzkaller login: [ 66.861949] sshd (239) used greatest stack depth: 23424 bytes left Warning: Permanently added '[localhost]:61241' (ECDSA) to the list of known hosts. 2025/01/23 16:06:56 fuzzer started 2025/01/23 16:06:56 dialing manager at localhost:45511 2025/01/23 16:06:57 checking machine... 2025/01/23 16:06:57 checking revisions... [ 69.920869] kmemleak: Automatic memory scanning thread ended 2025/01/23 16:06:57 testing simple program... [ 70.049497] cgroup: Unknown subsys name 'net' [ 70.169328] cgroup: Unknown subsys name 'cpuset' [ 70.202043] cgroup: Unknown subsys name 'rlimit' executing program executing program [ 76.554506] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) executing program executing program executing program [ 87.108917] audit: type=1400 audit(1737648434.523:7): avc: denied { execmem } for pid=279 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 executing program [ 88.368824] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 88.375741] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 88.378586] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 88.385843] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 88.391049] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 88.394841] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 90.448822] Bluetooth: hci0: command tx timeout executing program [ 92.495378] Bluetooth: hci0: command tx timeout executing program [ 94.543230] Bluetooth: hci0: command tx timeout [ 96.591864] Bluetooth: hci0: command tx timeout executing program executing program executing program executing program executing program executing program executing program [ 116.206399] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 116.207693] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 116.296589] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 116.297833] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2025/01/23 16:07:44 building call list... [ 117.242928] [ 117.243267] ====================================================== [ 117.244089] WARNING: possible circular locking dependency detected [ 117.244908] 6.13.0-next-20250123 #1 Not tainted [ 117.248289] ------------------------------------------------------ [ 117.250961] kworker/u8:2/734 is trying to acquire lock: [ 117.251671] ffffffff8621d8e8 (rtnl_mutex){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.253040] [ 117.253040] but task is already holding lock: [ 117.253827] ffff88801e970768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 117.255145] [ 117.255145] which lock already depends on the new lock. [ 117.255145] [ 117.256184] [ 117.256184] the existing dependency chain (in reverse order) is: [ 117.257145] [ 117.257145] -> #1 (&rdev->wiphy.mtx){+.+.}-{4:4}: [ 117.258048] __mutex_lock+0x13d/0xb50 [ 117.258690] wiphy_register+0x1b2e/0x25d0 [ 117.259373] ieee80211_register_hw+0x23a4/0x3d60 [ 117.260123] mac80211_hwsim_new_radio+0x2759/0x4d60 [ 117.260902] init_mac80211_hwsim+0x389/0x870 [ 117.261634] do_one_initcall+0xf9/0x640 [ 117.262295] kernel_init_freeable+0x53d/0x7a0 [ 117.263016] kernel_init+0x1e/0x2d0 [ 117.263600] ret_from_fork+0x48/0x80 [ 117.264195] ret_from_fork_asm+0x1a/0x30 [ 117.264864] [ 117.264864] -> #0 (rtnl_mutex){+.+.}-{4:4}: [ 117.265704] __lock_acquire+0x29fd/0x4580 [ 117.266369] lock_acquire+0x19b/0x520 [ 117.266983] __mutex_lock+0x13d/0xb50 [ 117.267614] unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.268466] unregister_netdevice_queue+0x224/0x2e0 [ 117.269227] _cfg80211_unregister_wdev+0x57b/0x700 [ 117.269999] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 117.270755] ieee80211_unregister_hw+0x55/0x3a0 [ 117.271474] hwsim_exit_net+0x3a0/0x730 [ 117.272117] ops_exit_list+0xb3/0x180 [ 117.272733] cleanup_net+0x546/0xad0 [ 117.273343] process_one_work+0x8ee/0x1a10 [ 117.274043] worker_thread+0x674/0xe70 [ 117.274698] kthread+0x3ab/0x720 [ 117.275278] ret_from_fork+0x48/0x80 [ 117.275866] ret_from_fork_asm+0x1a/0x30 [ 117.276534] [ 117.276534] other info that might help us debug this: [ 117.276534] [ 117.277547] Possible unsafe locking scenario: [ 117.277547] [ 117.278327] CPU0 CPU1 [ 117.278935] ---- ---- [ 117.279544] lock(&rdev->wiphy.mtx); [ 117.280088] lock(rtnl_mutex); [ 117.280867] lock(&rdev->wiphy.mtx); [ 117.281705] lock(rtnl_mutex); [ 117.282185] [ 117.282185] *** DEADLOCK *** [ 117.282185] [ 117.282947] 4 locks held by kworker/u8:2/734: [ 117.283544] #0: ffff888008fdb948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12b6/0x1a10 [ 117.284905] #1: ffff88801690fd30 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x861/0x1a10 [ 117.286229] #2: ffffffff86211910 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xca/0xad0 [ 117.287444] #3: ffff88801e970768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 117.288820] [ 117.288820] stack backtrace: [ 117.289412] CPU: 0 UID: 0 PID: 734 Comm: kworker/u8:2 Not tainted 6.13.0-next-20250123 #1 [ 117.289470] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 117.289505] Workqueue: netns cleanup_net [ 117.289571] Call Trace: [ 117.289586] [ 117.289612] dump_stack_lvl+0xca/0x120 [ 117.289703] print_circular_bug+0x47b/0x750 [ 117.289776] check_noncircular+0x2e9/0x3c0 [ 117.289842] ? __pfx_check_noncircular+0x10/0x10 [ 117.289908] ? hlock_class+0x4e/0x130 [ 117.289956] ? mark_lock+0xac/0xed0 [ 117.290021] ? srso_return_thunk+0x5/0x5f [ 117.290114] ? lockdep_lock+0xba/0x1b0 [ 117.290204] ? __pfx_lockdep_lock+0x10/0x10 [ 117.290302] __lock_acquire+0x29fd/0x4580 [ 117.290387] ? __pfx___lock_acquire+0x10/0x10 [ 117.290455] ? lock_release+0x20f/0x6f0 [ 117.290525] ? __pfx_lock_release+0x10/0x10 [ 117.290600] lock_acquire+0x19b/0x520 [ 117.290668] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.290747] ? __pfx_lock_acquire+0x10/0x10 [ 117.290817] ? srso_return_thunk+0x5/0x5f [ 117.290905] ? lock_release+0x20f/0x6f0 [ 117.290974] ? srso_return_thunk+0x5/0x5f [ 117.291062] ? lock_is_held_type+0x9e/0x120 [ 117.291150] ? srso_return_thunk+0x5/0x5f [ 117.291245] __mutex_lock+0x13d/0xb50 [ 117.291328] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.291401] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.291475] ? srso_return_thunk+0x5/0x5f [ 117.291563] ? synchronize_rcu_expedited+0x38a/0x420 [ 117.291632] ? __pfx___mutex_lock+0x10/0x10 [ 117.291718] ? __pfx_autoremove_wake_function+0x10/0x10 [ 117.291808] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 117.291871] unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.291944] ? __virt_addr_valid+0x2e8/0x5d0 [ 117.292027] ? __pfx_lock_release+0x10/0x10 [ 117.292098] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 117.292172] ? find_held_lock+0x2c/0x110 [ 117.292263] ? srso_return_thunk+0x5/0x5f [ 117.292355] ? kernfs_remove_by_name_ns+0xc7/0x130 [ 117.292449] ? srso_return_thunk+0x5/0x5f [ 117.292538] ? lock_release+0x20f/0x6f0 [ 117.292607] ? __pfx_lock_release+0x10/0x10 [ 117.292675] ? srso_return_thunk+0x5/0x5f [ 117.292764] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 117.292838] ? srso_return_thunk+0x5/0x5f [ 117.292935] unregister_netdevice_queue+0x224/0x2e0 [ 117.293005] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 117.293075] ? up_write+0x195/0x520 [ 117.293162] _cfg80211_unregister_wdev+0x57b/0x700 [ 117.293245] ? srso_return_thunk+0x5/0x5f [ 117.293339] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 117.293402] ? __pfx_ieee80211_remove_interfaces+0x10/0x10 [ 117.293464] ? srso_return_thunk+0x5/0x5f [ 117.293552] ? srso_return_thunk+0x5/0x5f [ 117.293650] ? synchronize_rcu+0x1ff/0x260 [ 117.293717] ieee80211_unregister_hw+0x55/0x3a0 [ 117.293789] hwsim_exit_net+0x3a0/0x730 [ 117.293856] ? __pfx_hwsim_exit_net+0x10/0x10 [ 117.293922] ? srso_return_thunk+0x5/0x5f [ 117.294010] ? netdev_run_todo+0x788/0x1040 [ 117.294089] ? __pfx_hwsim_exit_net+0x10/0x10 [ 117.294158] ops_exit_list+0xb3/0x180 [ 117.294231] cleanup_net+0x546/0xad0 [ 117.294303] ? __pfx_cleanup_net+0x10/0x10 [ 117.294389] process_one_work+0x8ee/0x1a10 [ 117.294492] ? __pfx_lock_acquire+0x10/0x10 [ 117.294563] ? __pfx_process_one_work+0x10/0x10 [ 117.294655] ? srso_return_thunk+0x5/0x5f [ 117.294743] ? move_linked_works+0x172/0x270 [ 117.294814] ? srso_return_thunk+0x5/0x5f [ 117.294902] ? assign_work+0x196/0x240 [ 117.294992] worker_thread+0x674/0xe70 [ 117.295084] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 117.295166] ? srso_return_thunk+0x5/0x5f [ 117.295254] ? __pfx_worker_thread+0x10/0x10 [ 117.295348] kthread+0x3ab/0x720 [ 117.295429] ? __pfx_kthread+0x10/0x10 [ 117.295511] ? srso_return_thunk+0x5/0x5f [ 117.295599] ? finish_task_switch.isra.0+0x206/0x840 [ 117.295680] ? __pfx_kthread+0x10/0x10 [ 117.295765] ret_from_fork+0x48/0x80 [ 117.295814] ? __pfx_kthread+0x10/0x10 [ 117.295897] ret_from_fork_asm+0x1a/0x30 [ 117.296001] executing program executing program [ 122.367189] audit: type=1400 audit(1737648469.781:8): avc: denied { create } for pid=259 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 [ 123.354177] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list executing program [ 124.380019] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list 2025/01/23 16:07:53 syscalls: 2217 2025/01/23 16:07:53 code coverage: enabled 2025/01/23 16:07:53 comparison tracing: enabled 2025/01/23 16:07:53 extra coverage: enabled 2025/01/23 16:07:53 setuid sandbox: enabled 2025/01/23 16:07:53 namespace sandbox: enabled 2025/01/23 16:07:53 Android sandbox: enabled 2025/01/23 16:07:53 fault injection: enabled 2025/01/23 16:07:53 leak checking: enabled 2025/01/23 16:07:53 net packet injection: enabled 2025/01/23 16:07:53 net device setup: enabled 2025/01/23 16:07:53 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/01/23 16:07:53 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/01/23 16:07:53 USB emulation: enabled 2025/01/23 16:07:53 hci packet injection: enabled 2025/01/23 16:07:53 wifi device emulation: enabled 2025/01/23 16:07:53 802.15.4 emulation: enabled 2025/01/23 16:07:53 fetching corpus: 0, signal 0/0 (executing program) 2025/01/23 16:07:53 fetching corpus: 0, signal 0/0 (executing program) VM DIAGNOSIS: 16:07:44 Registers: info registers vcpu 0 RAX=0000000000000065 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff8283eaa5 RDI=ffffffff886970a0 RBP=ffffffff88697060 RSP=ffff88801690ed20 R8 =0000000000000000 R9 =ffffed1001cd6046 R10=0000000000000065 R11=6465746e69612e36 R12=0000000000000065 R13=0000000000000010 R14=ffffffff88697060 R15=ffffffff8283ea90 RIP=ffffffff8283eafd 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 0000000000000000 00000000 00000000 GS =0000 ffff88806ce00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007faa0ebee9c0 CR3=0000000014d68000 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 info registers vcpu 1 RAX=0000000000000000 RBX=0000000000000002 RCX=ffffffff84a67e19 RDX=ffff888013b63780 RSI=0000000000000002 RDI=0000000000000001 RBP=ffffffff852da1a0 RSP=ffff8880160cf8a8 R8 =0000000000000007 R9 =ffffed10029a1478 R10=0000000000000000 R11=0000000000000000 R12=0000000000000000 R13=0000000000000001 R14=0000000000000008 R15=ffffffff84ca6c83 RIP=ffffffff81719ed0 RFL=00000206 [-----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 000000c0002d4b10 00000000 00000000 GS =0000 ffff88806cf00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=000000c000851000 CR3=0000000014d68000 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=38363733313866666666666666660a77 XMM02=3866666666666666660a776f68735f65 XMM03=6464615f656c6261745f73695f696665 XMM04=30303030303030303030303030303030 XMM05=6464615f656c6261745f73695f696665 XMM06=33313866666666666666660a73736572 XMM07=745f73695f6966652054203035383637 XMM08=6666660a737365726464615f656c6261 XMM09=20542030303936373331386666666666 XMM10=695f727474615f6966655f7866705f5f XMM11=6666666666660a656c62697369765f73 XMM12=69666520542030313936373331386666 XMM13=00000000008a4dee00000000008a69cf XMM14=000000000089d9b900000000008a4694 XMM15=00000000004643c100000000004360f2