syzkaller login: [ 63.882640] sshd (231) used greatest stack depth: 24216 bytes left Warning: Permanently added '[localhost]:62919' (ECDSA) to the list of known hosts. 2025/01/30 16:06:09 fuzzer started 2025/01/30 16:06:09 dialing manager at localhost:46401 2025/01/30 16:06:09 checking machine... 2025/01/30 16:06:09 checking revisions... [ 67.131371] kmemleak: Automatic memory scanning thread ended 2025/01/30 16:06:10 testing simple program... [ 67.223638] cgroup: Unknown subsys name 'net' [ 67.303165] cgroup: Unknown subsys name 'cpuset' [ 67.324900] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program executing program executing program [ 85.459618] audit: type=1400 audit(1738253188.389:7): 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 [ 86.581708] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 86.586089] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 86.589067] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 86.600605] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 86.604933] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 86.607357] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 88.664301] Bluetooth: hci0: command tx timeout [ 90.711711] Bluetooth: hci0: command tx timeout executing program [ 92.759781] Bluetooth: hci0: command tx timeout executing program [ 94.807822] Bluetooth: hci0: command tx timeout executing program executing program executing program executing program executing program executing program [ 114.459759] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 114.461192] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 114.547114] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 114.548527] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program 2025/01/30 16:06:58 building call list... [ 115.469276] syz-executor.0 (272) used greatest stack depth: 23920 bytes left [ 115.514079] [ 115.514482] ====================================================== [ 115.515439] WARNING: possible circular locking dependency detected [ 115.516368] 6.13.0-next-20250130 #1 Not tainted [ 115.522133] ------------------------------------------------------ [ 115.523530] kworker/u8:0/11 is trying to acquire lock: [ 115.524363] ffffffff86219b68 (rtnl_mutex){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0x1612/0x1c80 [ 115.525980] [ 115.525980] but task is already holding lock: [ 115.526863] ffff88801a8c8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 115.528397] [ 115.528397] which lock already depends on the new lock. [ 115.528397] [ 115.529597] [ 115.529597] the existing dependency chain (in reverse order) is: [ 115.530708] [ 115.530708] -> #1 (&rdev->wiphy.mtx){+.+.}-{4:4}: [ 115.531823] __mutex_lock+0x13d/0xb50 [ 115.532579] wiphy_register+0x1b2e/0x25d0 [ 115.533398] ieee80211_register_hw+0x23a4/0x3d60 [ 115.534258] mac80211_hwsim_new_radio+0x2759/0x4d60 [ 115.535169] init_mac80211_hwsim+0x389/0x870 [ 115.536017] do_one_initcall+0xf9/0x640 [ 115.536786] kernel_init_freeable+0x53d/0x7a0 [ 115.537621] kernel_init+0x1e/0x2d0 [ 115.538306] ret_from_fork+0x48/0x80 [ 115.539005] ret_from_fork_asm+0x1a/0x30 [ 115.539831] [ 115.539831] -> #0 (rtnl_mutex){+.+.}-{4:4}: [ 115.540795] __lock_acquire+0x29fd/0x4580 [ 115.541591] lock_acquire+0x19b/0x520 [ 115.542345] __mutex_lock+0x13d/0xb50 [ 115.543099] unregister_netdevice_many_notify+0x1612/0x1c80 [ 115.544113] unregister_netdevice_queue+0x224/0x2e0 [ 115.545008] _cfg80211_unregister_wdev+0x57b/0x700 [ 115.545910] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 115.546786] ieee80211_unregister_hw+0x55/0x3a0 [ 115.547680] hwsim_exit_net+0x3a0/0x730 [ 115.548423] ops_exit_list+0xb3/0x180 [ 115.549131] cleanup_net+0x546/0xad0 [ 115.549848] process_one_work+0x8ee/0x1a10 [ 115.550692] worker_thread+0x674/0xe70 [ 115.551476] kthread+0x3ab/0x720 [ 115.552153] ret_from_fork+0x48/0x80 [ 115.552832] ret_from_fork_asm+0x1a/0x30 [ 115.553617] [ 115.553617] other info that might help us debug this: [ 115.553617] [ 115.554789] Possible unsafe locking scenario: [ 115.554789] [ 115.555696] CPU0 CPU1 [ 115.556448] ---- ---- [ 115.557167] lock(&rdev->wiphy.mtx); [ 115.557827] lock(rtnl_mutex); [ 115.558737] lock(&rdev->wiphy.mtx); [ 115.559729] lock(rtnl_mutex); [ 115.560291] [ 115.560291] *** DEADLOCK *** [ 115.560291] [ 115.561181] 4 locks held by kworker/u8:0/11: [ 115.561874] #0: ffff888008fdb948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12b6/0x1a10 [ 115.563549] #1: ffff8880095dfd30 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x861/0x1a10 [ 115.565169] #2: ffffffff8620db90 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xca/0xad0 [ 115.566624] #3: ffff88801a8c8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 115.568236] [ 115.568236] stack backtrace: [ 115.568923] CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.13.0-next-20250130 #1 [ 115.568992] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 115.569033] Workqueue: netns cleanup_net [ 115.569109] Call Trace: [ 115.569127] [ 115.569148] dump_stack_lvl+0xca/0x120 [ 115.569256] print_circular_bug+0x47b/0x750 [ 115.569344] check_noncircular+0x2e9/0x3c0 [ 115.569421] ? lock_repin_lock+0x207/0x320 [ 115.569536] ? __pfx_check_noncircular+0x10/0x10 [ 115.569615] ? hlock_class+0x4e/0x130 [ 115.569672] ? mark_lock+0xac/0xed0 [ 115.569748] ? __pfx_lock_repin_lock+0x10/0x10 [ 115.569863] ? timerqueue_del+0x83/0x150 [ 115.569944] ? lockdep_lock+0xba/0x1b0 [ 115.570074] ? __pfx_lockdep_lock+0x10/0x10 [ 115.570208] __lock_acquire+0x29fd/0x4580 [ 115.570311] ? __pfx___lock_acquire+0x10/0x10 [ 115.570393] ? lock_release+0x20f/0x6f0 [ 115.570478] ? __pfx_lock_release+0x10/0x10 [ 115.570569] lock_acquire+0x19b/0x520 [ 115.570652] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 115.570744] ? __pfx_lock_acquire+0x10/0x10 [ 115.570829] ? srso_return_thunk+0x5/0x5f [ 115.570935] ? lock_release+0x20f/0x6f0 [ 115.571019] ? srso_return_thunk+0x5/0x5f [ 115.571124] ? lock_is_held_type+0x9e/0x120 [ 115.571232] ? srso_return_thunk+0x5/0x5f [ 115.571346] __mutex_lock+0x13d/0xb50 [ 115.571457] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 115.571541] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 115.571627] ? srso_return_thunk+0x5/0x5f [ 115.571732] ? synchronize_rcu_expedited+0x38a/0x420 [ 115.571815] ? __pfx___mutex_lock+0x10/0x10 [ 115.571923] ? __pfx_autoremove_wake_function+0x10/0x10 [ 115.572036] ? srso_return_thunk+0x5/0x5f [ 115.572145] ? kasan_quarantine_put+0x84/0x1e0 [ 115.572262] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 115.572328] ? srso_return_thunk+0x5/0x5f [ 115.572441] unregister_netdevice_many_notify+0x1612/0x1c80 [ 115.572527] ? __virt_addr_valid+0x2e8/0x5d0 [ 115.572632] ? __pfx_lock_release+0x10/0x10 [ 115.572718] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 115.572804] ? find_held_lock+0x2c/0x110 [ 115.572917] ? srso_return_thunk+0x5/0x5f [ 115.573026] ? kernfs_remove_by_name_ns+0xc7/0x130 [ 115.573138] ? srso_return_thunk+0x5/0x5f [ 115.573243] ? lock_release+0x20f/0x6f0 [ 115.573328] ? __pfx_lock_release+0x10/0x10 [ 115.573411] ? srso_return_thunk+0x5/0x5f [ 115.573516] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 115.573606] ? srso_return_thunk+0x5/0x5f [ 115.573722] unregister_netdevice_queue+0x224/0x2e0 [ 115.573803] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 115.573885] ? up_write+0x195/0x520 [ 115.573990] _cfg80211_unregister_wdev+0x57b/0x700 [ 115.574089] ? srso_return_thunk+0x5/0x5f [ 115.574201] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 115.574272] ? __pfx_ieee80211_remove_interfaces+0x10/0x10 [ 115.574344] ? srso_return_thunk+0x5/0x5f [ 115.574449] ? srso_return_thunk+0x5/0x5f [ 115.574554] ? synchronize_rcu+0x1ff/0x260 [ 115.574635] ieee80211_unregister_hw+0x55/0x3a0 [ 115.574719] hwsim_exit_net+0x3a0/0x730 [ 115.574797] ? __pfx_hwsim_exit_net+0x10/0x10 [ 115.574873] ? srso_return_thunk+0x5/0x5f [ 115.574978] ? netdev_run_todo+0x788/0x1040 [ 115.575070] ? __pfx_hwsim_exit_net+0x10/0x10 [ 115.575150] ops_exit_list+0xb3/0x180 [ 115.575229] cleanup_net+0x546/0xad0 [ 115.575313] ? __pfx_cleanup_net+0x10/0x10 [ 115.575428] process_one_work+0x8ee/0x1a10 [ 115.575554] ? __pfx_lock_acquire+0x10/0x10 [ 115.575640] ? __pfx_process_one_work+0x10/0x10 [ 115.575752] ? srso_return_thunk+0x5/0x5f [ 115.575857] ? move_linked_works+0x172/0x270 [ 115.575942] ? srso_return_thunk+0x5/0x5f [ 115.576047] ? assign_work+0x196/0x240 [ 115.576157] worker_thread+0x674/0xe70 [ 115.576270] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 115.576370] ? __pfx_worker_thread+0x10/0x10 [ 115.576485] kthread+0x3ab/0x720 [ 115.576585] ? __pfx_kthread+0x10/0x10 [ 115.576685] ? srso_return_thunk+0x5/0x5f [ 115.576790] ? finish_task_switch.isra.0+0x206/0x840 [ 115.576888] ? __pfx_kthread+0x10/0x10 [ 115.576991] ret_from_fork+0x48/0x80 [ 115.577059] ? __pfx_kthread+0x10/0x10 [ 115.577180] ret_from_fork_asm+0x1a/0x30 [ 115.577312] executing program executing program [ 121.153852] audit: type=1400 audit(1738253224.084:8): avc: denied { create } for pid=252 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 [ 122.091287] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 123.165646] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list executing program 2025/01/30 16:07:08 syscalls: 2217 2025/01/30 16:07:08 code coverage: enabled 2025/01/30 16:07:08 comparison tracing: enabled 2025/01/30 16:07:08 extra coverage: enabled 2025/01/30 16:07:08 setuid sandbox: enabled 2025/01/30 16:07:08 namespace sandbox: enabled 2025/01/30 16:07:08 Android sandbox: enabled 2025/01/30 16:07:08 fault injection: enabled 2025/01/30 16:07:08 leak checking: enabled 2025/01/30 16:07:08 net packet injection: enabled 2025/01/30 16:07:08 net device setup: enabled 2025/01/30 16:07:08 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/01/30 16:07:08 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/01/30 16:07:08 USB emulation: enabled 2025/01/30 16:07:08 hci packet injection: enabled 2025/01/30 16:07:08 wifi device emulation: enabled 2025/01/30 16:07:08 802.15.4 emulation: enabled 2025/01/30 16:07:08 fetching corpus: 0, signal 0/0 (executing program) 2025/01/30 16:07:08 fetching corpus: 0, signal 0/0 (executing program) VM DIAGNOSIS: 16:06:58 Registers: info registers vcpu 0 RAX=0000000000000065 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff8283d2d5 RDI=ffffffff88693060 RBP=ffffffff88693020 RSP=ffff8880095ded20 R8 =0000000000000000 R9 =ffffed1001c4d046 R10=0000000000000065 R11=6465746e69612e36 R12=0000000000000065 R13=0000000000000010 R14=ffffffff88693020 R15=ffffffff8283d2c0 RIP=ffffffff8283d32d 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=00007fa8276ae2c0 CR3=000000000c0e4000 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=000000000000000041114ea000000000 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=0000000000000030 RBX=0000000000000010 RCX=ffffffff84a53547 RDX=ffff888009fa8000 RSI=ffffffff84a53561 RDI=0000000000000001 RBP=0000000000000000 RSP=ffff888018a176f8 R8 =0000000000000001 R9 =ffffed1001f27023 R10=0000000000000000 R11=0000000000000000 R12=ffff88800f939000 R13=0000001000000000 R14=ffff88800f939000 R15=ffff88800f93811c RIP=ffffffff84a53565 RFL=00000293 [--S-A-C] 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 000000c000030790 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=00007fa98e613010 CR3=000000000c0e4000 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