syzkaller login: [ 68.589730] sshd (246) used greatest stack depth: 24232 bytes left Warning: Permanently added '[localhost]:25985' (ECDSA) to the list of known hosts. 2025/01/22 16:07:26 fuzzer started 2025/01/22 16:07:27 dialing manager at localhost:38529 2025/01/22 16:07:27 checking machine... 2025/01/22 16:07:27 checking revisions... [ 70.143850] kmemleak: Automatic memory scanning thread ended 2025/01/22 16:07:27 testing simple program... [ 70.268898] cgroup: Unknown subsys name 'net' [ 70.350719] cgroup: Unknown subsys name 'cpuset' [ 70.379325] cgroup: Unknown subsys name 'rlimit' executing program executing program [ 75.949821] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) executing program executing program executing program [ 86.354991] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 86.718316] audit: type=1400 audit(1737562064.098:7): avc: denied { execmem } for pid=280 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 [ 87.888330] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 87.896628] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 87.901529] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 87.918921] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 87.923330] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 87.925771] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 89.976310] Bluetooth: hci0: command tx timeout executing program [ 92.022416] Bluetooth: hci0: command tx timeout executing program [ 94.070142] Bluetooth: hci0: command tx timeout [ 96.118874] Bluetooth: hci0: command tx timeout executing program executing program executing program executing program executing program executing program executing program [ 114.859688] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 114.859891] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 114.933029] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 114.933165] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2025/01/22 16:08:13 building call list... [ 115.927688] [ 115.928116] ====================================================== [ 115.929165] WARNING: possible circular locking dependency detected [ 115.930218] 6.13.0-next-20250122 #1 Not tainted [ 115.932758] ------------------------------------------------------ [ 115.936725] kworker/u8:2/733 is trying to acquire lock: [ 115.937639] ffffffff8621ece8 (rtnl_mutex){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0x1612/0x1c80 [ 115.939407] [ 115.939407] but task is already holding lock: [ 115.940408] ffff88801ae38768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 115.942142] [ 115.942142] which lock already depends on the new lock. [ 115.942142] [ 115.943490] [ 115.943490] the existing dependency chain (in reverse order) is: [ 115.944802] [ 115.944802] -> #1 (&rdev->wiphy.mtx){+.+.}-{4:4}: [ 115.946213] __mutex_lock+0x13d/0xb50 [ 115.947186] wiphy_register+0x1b2e/0x25d0 [ 115.948228] ieee80211_register_hw+0x23a4/0x3d60 [ 115.949375] mac80211_hwsim_new_radio+0x2759/0x4d60 [ 115.950574] init_mac80211_hwsim+0x389/0x870 [ 115.951667] do_one_initcall+0xf9/0x640 [ 115.952689] kernel_init_freeable+0x53d/0x7a0 [ 115.953792] kernel_init+0x1e/0x2d0 [ 115.954685] ret_from_fork+0x48/0x80 [ 115.955594] ret_from_fork_asm+0x1a/0x30 [ 115.956643] [ 115.956643] -> #0 (rtnl_mutex){+.+.}-{4:4}: [ 115.957945] __lock_acquire+0x29fd/0x4580 [ 115.958985] lock_acquire+0x19b/0x520 [ 115.959926] __mutex_lock+0x13d/0xb50 [ 115.960898] unregister_netdevice_many_notify+0x1612/0x1c80 [ 115.962178] unregister_netdevice_queue+0x224/0x2e0 [ 115.963333] _cfg80211_unregister_wdev+0x57b/0x700 [ 115.964508] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 115.965680] ieee80211_unregister_hw+0x55/0x3a0 [ 115.966774] hwsim_exit_net+0x3a0/0x730 [ 115.967749] ops_exit_list+0xb3/0x180 [ 115.968702] cleanup_net+0x546/0xad0 [ 115.969650] process_one_work+0x8ee/0x1a10 [ 115.970722] worker_thread+0x674/0xe70 [ 115.971714] kthread+0x3ab/0x720 [ 115.972605] ret_from_fork+0x48/0x80 [ 115.973512] ret_from_fork_asm+0x1a/0x30 [ 115.974538] [ 115.974538] other info that might help us debug this: [ 115.974538] [ 115.976091] Possible unsafe locking scenario: [ 115.976091] [ 115.977266] CPU0 CPU1 [ 115.978201] ---- ---- [ 115.979132] lock(&rdev->wiphy.mtx); [ 115.979968] lock(rtnl_mutex); [ 115.981183] lock(&rdev->wiphy.mtx); [ 115.982480] lock(rtnl_mutex); [ 115.983215] [ 115.983215] *** DEADLOCK *** [ 115.983215] [ 115.984396] 4 locks held by kworker/u8:2/733: [ 115.985322] #0: ffff888008fdb948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12b6/0x1a10 [ 115.987402] #1: ffff88801ab67d30 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x861/0x1a10 [ 115.989435] #2: ffffffff86212d10 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xca/0xad0 [ 115.991310] #3: ffff88801ae38768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 115.993424] [ 115.993424] stack backtrace: [ 115.994314] CPU: 0 UID: 0 PID: 733 Comm: kworker/u8:2 Not tainted 6.13.0-next-20250122 #1 [ 115.995902] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 115.997504] Workqueue: netns cleanup_net [ 115.998367] Call Trace: [ 115.998890] [ 115.999363] dump_stack_lvl+0xca/0x120 [ 116.000234] print_circular_bug+0x47b/0x750 [ 116.001140] check_noncircular+0x2e9/0x3c0 [ 116.002029] ? __pfx_check_noncircular+0x10/0x10 [ 116.003012] ? hlock_class+0x4e/0x130 [ 116.003795] ? srso_return_thunk+0x5/0x5f [ 116.004720] ? mark_lock+0xac/0xed0 [ 116.005493] ? lockdep_lock+0xba/0x1b0 [ 116.006339] ? __pfx_lockdep_lock+0x10/0x10 [ 116.007262] __lock_acquire+0x29fd/0x4580 [ 116.008152] ? __pfx___lock_acquire+0x10/0x10 [ 116.009077] ? lock_release+0x20f/0x6f0 [ 116.009908] ? __pfx_lock_release+0x10/0x10 [ 116.010804] ? srso_return_thunk+0x5/0x5f [ 116.011707] lock_acquire+0x19b/0x520 [ 116.012508] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 116.013684] ? __pfx_lock_acquire+0x10/0x10 [ 116.014598] ? srso_return_thunk+0x5/0x5f [ 116.015471] ? lock_is_held_type+0x9e/0x120 [ 116.016407] ? srso_return_thunk+0x5/0x5f [ 116.017309] __mutex_lock+0x13d/0xb50 [ 116.018130] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 116.019305] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 116.020463] ? srso_return_thunk+0x5/0x5f [ 116.021331] ? synchronize_rcu_expedited+0x38a/0x420 [ 116.022348] ? __pfx___mutex_lock+0x10/0x10 [ 116.023244] ? srso_return_thunk+0x5/0x5f [ 116.024134] ? srso_return_thunk+0x5/0x5f [ 116.025032] ? kasan_quarantine_put+0x84/0x1e0 [ 116.025996] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 116.026909] ? srso_return_thunk+0x5/0x5f [ 116.027790] unregister_netdevice_many_notify+0x1612/0x1c80 [ 116.028942] ? __virt_addr_valid+0x2e8/0x5d0 [ 116.029856] ? __pfx_lock_release+0x10/0x10 [ 116.030733] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 116.031915] ? find_held_lock+0x2c/0x110 [ 116.032790] ? srso_return_thunk+0x5/0x5f [ 116.033677] ? kernfs_remove_by_name_ns+0xc7/0x130 [ 116.034699] ? srso_return_thunk+0x5/0x5f [ 116.035560] ? lock_release+0x20f/0x6f0 [ 116.036380] ? __pfx_lock_release+0x10/0x10 [ 116.037260] ? srso_return_thunk+0x5/0x5f [ 116.038130] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 116.039175] ? srso_return_thunk+0x5/0x5f [ 116.040051] unregister_netdevice_queue+0x224/0x2e0 [ 116.041035] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 116.042116] ? up_write+0x195/0x520 [ 116.042902] _cfg80211_unregister_wdev+0x57b/0x700 [ 116.043904] ? srso_return_thunk+0x5/0x5f [ 116.044778] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 116.045795] ? __pfx_ieee80211_remove_interfaces+0x10/0x10 [ 116.046874] ? srso_return_thunk+0x5/0x5f [ 116.047724] ? srso_return_thunk+0x5/0x5f [ 116.048600] ? synchronize_rcu+0x1ff/0x260 [ 116.049458] ieee80211_unregister_hw+0x55/0x3a0 [ 116.050387] hwsim_exit_net+0x3a0/0x730 [ 116.051202] ? __pfx_hwsim_exit_net+0x10/0x10 [ 116.052117] ? srso_return_thunk+0x5/0x5f [ 116.052975] ? netdev_run_todo+0x788/0x1040 [ 116.053844] ? __pfx_hwsim_exit_net+0x10/0x10 [ 116.054745] ops_exit_list+0xb3/0x180 [ 116.055526] cleanup_net+0x546/0xad0 [ 116.056308] ? __pfx_cleanup_net+0x10/0x10 [ 116.057188] process_one_work+0x8ee/0x1a10 [ 116.058077] ? __pfx_lock_acquire+0x10/0x10 [ 116.058946] ? __pfx_process_one_work+0x10/0x10 [ 116.059901] ? srso_return_thunk+0x5/0x5f [ 116.060771] ? move_linked_works+0x172/0x270 [ 116.061654] ? srso_return_thunk+0x5/0x5f [ 116.062515] ? assign_work+0x196/0x240 [ 116.063321] worker_thread+0x674/0xe70 [ 116.064107] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 116.065151] ? srso_return_thunk+0x5/0x5f [ 116.066021] ? __pfx_worker_thread+0x10/0x10 [ 116.066941] kthread+0x3ab/0x720 [ 116.067654] ? __pfx_kthread+0x10/0x10 [ 116.068467] ? srso_return_thunk+0x5/0x5f [ 116.069325] ? finish_task_switch.isra.0+0x206/0x840 [ 116.070333] ? __pfx_kthread+0x10/0x10 [ 116.071140] ret_from_fork+0x48/0x80 [ 116.071874] ? __pfx_kthread+0x10/0x10 [ 116.072693] ret_from_fork_asm+0x1a/0x30 [ 116.073555] executing program executing program [ 121.774445] audit: type=1400 audit(1737562099.154:8): avc: denied { create } for pid=260 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 [ 122.676252] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 123.685527] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list executing program 2025/01/22 16:08:23 syscalls: 2217 2025/01/22 16:08:23 code coverage: enabled 2025/01/22 16:08:23 comparison tracing: enabled 2025/01/22 16:08:23 extra coverage: enabled 2025/01/22 16:08:23 setuid sandbox: enabled 2025/01/22 16:08:23 namespace sandbox: enabled 2025/01/22 16:08:23 Android sandbox: enabled 2025/01/22 16:08:23 fault injection: enabled 2025/01/22 16:08:23 leak checking: enabled 2025/01/22 16:08:23 net packet injection: enabled 2025/01/22 16:08:23 net device setup: enabled 2025/01/22 16:08:23 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/01/22 16:08:23 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/01/22 16:08:23 USB emulation: enabled 2025/01/22 16:08:23 hci packet injection: enabled 2025/01/22 16:08:23 wifi device emulation: enabled 2025/01/22 16:08:23 802.15.4 emulation: enabled 2025/01/22 16:08:23 fetching corpus: 0, signal 0/0 (executing program) 2025/01/22 16:08:23 fetching corpus: 0, signal 0/0 (executing program) VM DIAGNOSIS: 16:08:13 Registers: info registers vcpu 0 RAX=000000000000002d RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff8283e865 RDI=ffffffff886990a0 RBP=ffffffff88699060 RSP=ffff88801ab66bb8 R8 =0000000000000001 R9 =ffffed100356cd67 R10=000000000000002d R11=2d2d2d2d2d2d2d2d R12=000000000000002d R13=0000000000000001 R14=ffff888008fea01d R15=ffff88801ab66eb8 RIP=ffffffff8283e8bd 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=00007fb0bb2cc000 CR3=000000001333a000 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=0000000000000405 RCX=ffffffff84a67f36 RDX=ffff888013189bc0 RSI=ffffffff84a67ddd RDI=0000000000000001 RBP=ffff88801904f9c0 RSP=ffff88801904f8d0 R8 =0000000000000001 R9 =ffffed1002af38eb R10=000000000000000a R11=0000000000000000 R12=ffff88801579c769 R13=0000000000000405 R14=000000000000000a R15=ffffffff84ca6e49 RIP=ffffffff8171a348 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 000000c0002e2090 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=00007f1b226b4e48 CR3=000000001333a000 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