Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:62919' (ECDSA) to the list of known hosts. 2025/01/23 16:06:36 fuzzer started 2025/01/23 16:06:37 dialing manager at localhost:45511 2025/01/23 16:06:37 checking machine... 2025/01/23 16:06:37 checking revisions... syzkaller login: [ 69.891729] kmemleak: Automatic memory scanning thread ended 2025/01/23 16:06:37 testing simple program... [ 70.010461] cgroup: Unknown subsys name 'net' [ 70.168662] cgroup: Unknown subsys name 'cpuset' [ 70.254016] cgroup: Unknown subsys name 'rlimit' executing program executing program [ 77.069890] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) executing program executing program executing program executing program [ 88.773583] audit: type=1400 audit(1737648416.584:7): 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 [ 90.026310] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 90.030638] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 90.032989] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 90.039077] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 90.042188] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 90.044749] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 92.113751] Bluetooth: hci0: command tx timeout executing program [ 94.163181] Bluetooth: hci0: command tx timeout [ 96.209414] Bluetooth: hci0: command tx timeout executing program [ 98.258168] Bluetooth: hci0: command tx timeout executing program executing program executing program executing program executing program executing program [ 117.142812] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 117.144175] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 117.221654] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 117.223119] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program 2025/01/23 16:07:25 building call list... [ 118.237928] [ 118.238372] ====================================================== [ 118.239537] WARNING: possible circular locking dependency detected [ 118.240734] 6.13.0-next-20250123 #1 Not tainted [ 118.246891] ------------------------------------------------------ [ 118.248057] kworker/u8:0/11 is trying to acquire lock: [ 118.249078] ffffffff8621d8e8 (rtnl_mutex){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0x1612/0x1c80 [ 118.251040] [ 118.251040] but task is already holding lock: [ 118.252292] ffff88800ebe8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 118.254205] [ 118.254205] which lock already depends on the new lock. [ 118.254205] [ 118.255637] [ 118.255637] the existing dependency chain (in reverse order) is: [ 118.256984] [ 118.256984] -> #1 (&rdev->wiphy.mtx){+.+.}-{4:4}: [ 118.258226] __mutex_lock+0x13d/0xb50 [ 118.259118] wiphy_register+0x1b2e/0x25d0 [ 118.260065] ieee80211_register_hw+0x23a4/0x3d60 [ 118.261117] mac80211_hwsim_new_radio+0x2759/0x4d60 [ 118.262203] init_mac80211_hwsim+0x389/0x870 [ 118.263207] do_one_initcall+0xf9/0x640 [ 118.264153] kernel_init_freeable+0x53d/0x7a0 [ 118.265170] kernel_init+0x1e/0x2d0 [ 118.265986] ret_from_fork+0x48/0x80 [ 118.266814] ret_from_fork_asm+0x1a/0x30 [ 118.267761] [ 118.267761] -> #0 (rtnl_mutex){+.+.}-{4:4}: [ 118.268949] __lock_acquire+0x29fd/0x4580 [ 118.269881] lock_acquire+0x19b/0x520 [ 118.270752] __mutex_lock+0x13d/0xb50 [ 118.271637] unregister_netdevice_many_notify+0x1612/0x1c80 [ 118.272840] unregister_netdevice_queue+0x224/0x2e0 [ 118.273940] _cfg80211_unregister_wdev+0x57b/0x700 [ 118.275013] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 118.276073] ieee80211_unregister_hw+0x55/0x3a0 [ 118.277102] hwsim_exit_net+0x3a0/0x730 [ 118.278011] ops_exit_list+0xb3/0x180 [ 118.278893] cleanup_net+0x546/0xad0 [ 118.279738] process_one_work+0x8ee/0x1a10 [ 118.280819] worker_thread+0x674/0xe70 [ 118.281758] kthread+0x3ab/0x720 [ 118.282602] ret_from_fork+0x48/0x80 [ 118.283448] ret_from_fork_asm+0x1a/0x30 [ 118.284435] [ 118.284435] other info that might help us debug this: [ 118.284435] [ 118.285876] Possible unsafe locking scenario: [ 118.285876] [ 118.286943] CPU0 CPU1 [ 118.287803] ---- ---- [ 118.288678] lock(&rdev->wiphy.mtx); [ 118.289466] lock(rtnl_mutex); [ 118.290591] lock(&rdev->wiphy.mtx); [ 118.291805] lock(rtnl_mutex); [ 118.292530] [ 118.292530] *** DEADLOCK *** [ 118.292530] [ 118.293627] 4 locks held by kworker/u8:0/11: [ 118.294492] #0: ffff888008fdb948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12b6/0x1a10 [ 118.296528] #1: ffff8880095dfd30 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x861/0x1a10 [ 118.298370] #2: ffffffff86211910 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xca/0xad0 [ 118.300172] #3: ffff88800ebe8768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 118.302171] [ 118.302171] stack backtrace: [ 118.303017] CPU: 1 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.13.0-next-20250123 #1 [ 118.303105] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 118.303154] Workqueue: netns cleanup_net [ 118.303251] Call Trace: [ 118.303274] [ 118.303301] dump_stack_lvl+0xca/0x120 [ 118.303436] print_circular_bug+0x47b/0x750 [ 118.303546] check_noncircular+0x2e9/0x3c0 [ 118.303646] ? __pfx_check_noncircular+0x10/0x10 [ 118.303746] ? hlock_class+0x4e/0x130 [ 118.303816] ? srso_return_thunk+0x5/0x5f [ 118.303949] ? mark_lock+0xac/0xed0 [ 118.304051] ? lockdep_lock+0xba/0x1b0 [ 118.304206] ? __pfx_lockdep_lock+0x10/0x10 [ 118.304354] __lock_acquire+0x29fd/0x4580 [ 118.304482] ? __pfx___lock_acquire+0x10/0x10 [ 118.304585] ? lock_release+0x20f/0x6f0 [ 118.304689] ? __pfx_lock_release+0x10/0x10 [ 118.304790] ? srso_return_thunk+0x5/0x5f [ 118.304933] lock_acquire+0x19b/0x520 [ 118.305033] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 118.305152] ? __pfx_lock_acquire+0x10/0x10 [ 118.305257] ? __pfx_lock_release+0x10/0x10 [ 118.305358] ? __pfx_try_to_wake_up+0x10/0x10 [ 118.305460] ? srso_return_thunk+0x5/0x5f [ 118.305592] ? lock_is_held_type+0x9e/0x120 [ 118.305724] ? srso_return_thunk+0x5/0x5f [ 118.305865] __mutex_lock+0x13d/0xb50 [ 118.305993] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 118.306101] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 118.306212] ? srso_return_thunk+0x5/0x5f [ 118.306344] ? synchronize_rcu_expedited+0x38a/0x420 [ 118.306446] ? __pfx___mutex_lock+0x10/0x10 [ 118.306576] ? srso_return_thunk+0x5/0x5f [ 118.306712] ? srso_return_thunk+0x5/0x5f [ 118.306844] ? kasan_quarantine_put+0x84/0x1e0 [ 118.306984] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 118.307066] ? srso_return_thunk+0x5/0x5f [ 118.307209] unregister_netdevice_many_notify+0x1612/0x1c80 [ 118.307320] ? __virt_addr_valid+0x2e8/0x5d0 [ 118.307443] ? __pfx_lock_release+0x10/0x10 [ 118.307549] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 118.307661] ? find_held_lock+0x2c/0x110 [ 118.307799] ? srso_return_thunk+0x5/0x5f [ 118.307938] ? kernfs_remove_by_name_ns+0xc7/0x130 [ 118.308077] ? srso_return_thunk+0x5/0x5f [ 118.308224] ? lock_release+0x20f/0x6f0 [ 118.308328] ? __pfx_lock_release+0x10/0x10 [ 118.308430] ? srso_return_thunk+0x5/0x5f [ 118.308562] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 118.308674] ? srso_return_thunk+0x5/0x5f [ 118.308819] unregister_netdevice_queue+0x224/0x2e0 [ 118.308929] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 118.309032] ? up_write+0x195/0x520 [ 118.309163] _cfg80211_unregister_wdev+0x57b/0x700 [ 118.309289] ? srso_return_thunk+0x5/0x5f [ 118.309430] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 118.309524] ? __pfx_ieee80211_remove_interfaces+0x10/0x10 [ 118.309617] ? srso_return_thunk+0x5/0x5f [ 118.309749] ? srso_return_thunk+0x5/0x5f [ 118.309881] ? synchronize_rcu+0x1ff/0x260 [ 118.309981] ieee80211_unregister_hw+0x55/0x3a0 [ 118.310088] hwsim_exit_net+0x3a0/0x730 [ 118.310190] ? __pfx_hwsim_exit_net+0x10/0x10 [ 118.310288] ? srso_return_thunk+0x5/0x5f [ 118.310420] ? netdev_run_todo+0x788/0x1040 [ 118.310540] ? __pfx_hwsim_exit_net+0x10/0x10 [ 118.310643] ops_exit_list+0xb3/0x180 [ 118.310746] cleanup_net+0x546/0xad0 [ 118.310854] ? __pfx_cleanup_net+0x10/0x10 [ 118.310983] process_one_work+0x8ee/0x1a10 [ 118.311138] ? __pfx_lock_acquire+0x10/0x10 [ 118.311244] ? __pfx_process_one_work+0x10/0x10 [ 118.311383] ? srso_return_thunk+0x5/0x5f [ 118.311515] ? move_linked_works+0x172/0x270 [ 118.311622] ? srso_return_thunk+0x5/0x5f [ 118.311754] ? assign_work+0x196/0x240 [ 118.311889] worker_thread+0x674/0xe70 [ 118.312025] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 118.312163] ? __pfx_worker_thread+0x10/0x10 [ 118.312304] kthread+0x3ab/0x720 [ 118.312428] ? __pfx_kthread+0x10/0x10 [ 118.312550] ? srso_return_thunk+0x5/0x5f [ 118.312683] ? finish_task_switch.isra.0+0x206/0x840 [ 118.312803] ? __pfx_kthread+0x10/0x10 [ 118.312931] ret_from_fork+0x48/0x80 [ 118.313003] ? __pfx_kthread+0x10/0x10 [ 118.313129] ret_from_fork_asm+0x1a/0x30 [ 118.313289] executing program executing program [ 124.074559] audit: type=1400 audit(1737648451.885:8): avc: denied { create } for pid=258 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 [ 124.930220] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 125.984717] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list executing program 2025/01/23 16:07:35 syscalls: 2217 2025/01/23 16:07:35 code coverage: enabled 2025/01/23 16:07:35 comparison tracing: enabled 2025/01/23 16:07:35 extra coverage: enabled 2025/01/23 16:07:35 setuid sandbox: enabled 2025/01/23 16:07:35 namespace sandbox: enabled 2025/01/23 16:07:35 Android sandbox: enabled 2025/01/23 16:07:35 fault injection: enabled 2025/01/23 16:07:35 leak checking: enabled 2025/01/23 16:07:35 net packet injection: enabled 2025/01/23 16:07:35 net device setup: enabled 2025/01/23 16:07:35 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/01/23 16:07:35 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/01/23 16:07:35 USB emulation: enabled 2025/01/23 16:07:35 hci packet injection: enabled 2025/01/23 16:07:35 wifi device emulation: enabled 2025/01/23 16:07:35 802.15.4 emulation: enabled 2025/01/23 16:07:35 fetching corpus: 0, signal 0/0 (executing program) 2025/01/23 16:07:35 fetching corpus: 0, signal 0/0 (executing program) VM DIAGNOSIS: 16:07:26 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=0000000000000003 RCX=ffffffff84a67e19 RDX=ffff888013c10000 RSI=0000000000000002 RDI=0000000000000001 RBP=ffffffff852da1a0 RSP=ffff8880162978a8 R8 =0000000000000001 R9 =ffffed10036330aa R10=0000000000000000 R11=0000000000000000 R12=0000000000000000 R13=0000000000000001 R14=0000000000000008 R15=ffffffff84ca6c86 RIP=ffffffff81719ee7 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 0000000001f21870 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=000000c000815000 CR3=0000000009b2e000 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=0000000000000041000000c00001a000 XMM14=000000000000000c000000c000014050 XMM15=000000000000000d000000c000014060 info registers vcpu 1 RAX=0000000000000023 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff8283eaa5 RDI=ffffffff886970a0 RBP=ffffffff88697060 RSP=ffff8880095ded20 R8 =0000000000000000 R9 =ffffed10018db046 R10=0000000000000023 R11=6465746e69612e36 R12=0000000000000023 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 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=000000c000806000 CR3=0000000009b2e000 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=00000000000000004116a36000000000 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