[ 62.067205] audit: type=1400 audit(1737562049.602:6): avc: denied { checkpoint_restore } for pid=219 comm="agetty" capability=40 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:61241' (ECDSA) to the list of known hosts. 2025/01/22 16:07:37 fuzzer started 2025/01/22 16:07:38 dialing manager at localhost:38529 2025/01/22 16:07:38 checking machine... 2025/01/22 16:07:38 checking revisions... syzkaller login: [ 71.197139] kmemleak: Automatic memory scanning thread ended 2025/01/22 16:07:38 testing simple program... [ 71.326714] cgroup: Unknown subsys name 'net' [ 71.416470] cgroup: Unknown subsys name 'cpuset' [ 71.445270] cgroup: Unknown subsys name 'rlimit' executing program executing program [ 76.967449] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) executing program executing program executing program [ 87.175752] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 87.838635] audit: type=1400 audit(1737562075.376:7): avc: denied { execmem } for pid=273 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 [ 89.016778] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 89.025320] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 89.034652] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 89.044803] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 89.051487] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 89.054448] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 91.103216] Bluetooth: hci0: command tx timeout executing program [ 93.150075] Bluetooth: hci0: command tx timeout executing program [ 95.199038] Bluetooth: hci0: command tx timeout [ 97.247083] Bluetooth: hci0: command tx timeout executing program executing program executing program executing program executing program executing program executing program [ 116.699700] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 116.699981] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 116.780786] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 116.781182] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2025/01/22 16:08:24 building call list... [ 117.668765] [ 117.669151] ====================================================== [ 117.670120] WARNING: possible circular locking dependency detected [ 117.671104] 6.13.0-next-20250122 #1 Not tainted [ 117.672622] ------------------------------------------------------ [ 117.676789] kworker/u8:0/11 is trying to acquire lock: [ 117.679092] ffffffff8621ece8 (rtnl_mutex){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.680743] [ 117.680743] but task is already holding lock: [ 117.681673] ffff88801e670768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 117.683244] [ 117.683244] which lock already depends on the new lock. [ 117.683244] [ 117.684492] [ 117.684492] the existing dependency chain (in reverse order) is: [ 117.685653] [ 117.685653] -> #1 (&rdev->wiphy.mtx){+.+.}-{4:4}: [ 117.686736] __mutex_lock+0x13d/0xb50 [ 117.687484] wiphy_register+0x1b2e/0x25d0 [ 117.688293] ieee80211_register_hw+0x23a4/0x3d60 [ 117.689177] mac80211_hwsim_new_radio+0x2759/0x4d60 [ 117.690100] init_mac80211_hwsim+0x389/0x870 [ 117.690943] do_one_initcall+0xf9/0x640 [ 117.691738] kernel_init_freeable+0x53d/0x7a0 [ 117.692601] kernel_init+0x1e/0x2d0 [ 117.693292] ret_from_fork+0x48/0x80 [ 117.693987] ret_from_fork_asm+0x1a/0x30 [ 117.694779] [ 117.694779] -> #0 (rtnl_mutex){+.+.}-{4:4}: [ 117.695775] __lock_acquire+0x29fd/0x4580 [ 117.696573] lock_acquire+0x19b/0x520 [ 117.697316] __mutex_lock+0x13d/0xb50 [ 117.698062] unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.699066] unregister_netdevice_queue+0x224/0x2e0 [ 117.699967] _cfg80211_unregister_wdev+0x57b/0x700 [ 117.700879] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 117.701778] ieee80211_unregister_hw+0x55/0x3a0 [ 117.702630] hwsim_exit_net+0x3a0/0x730 [ 117.703379] ops_exit_list+0xb3/0x180 [ 117.704116] cleanup_net+0x546/0xad0 [ 117.704838] process_one_work+0x8ee/0x1a10 [ 117.705653] worker_thread+0x674/0xe70 [ 117.706426] kthread+0x3ab/0x720 [ 117.707105] ret_from_fork+0x48/0x80 [ 117.707802] ret_from_fork_asm+0x1a/0x30 [ 117.708594] [ 117.708594] other info that might help us debug this: [ 117.708594] [ 117.709815] Possible unsafe locking scenario: [ 117.709815] [ 117.710753] CPU0 CPU1 [ 117.711480] ---- ---- [ 117.712223] lock(&rdev->wiphy.mtx); [ 117.712864] lock(rtnl_mutex); [ 117.713795] lock(&rdev->wiphy.mtx); [ 117.714784] lock(rtnl_mutex); [ 117.715362] [ 117.715362] *** DEADLOCK *** [ 117.715362] [ 117.716294] 4 locks held by kworker/u8:0/11: [ 117.716992] #0: ffff888008fdb948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12b6/0x1a10 [ 117.718628] #1: ffff8880095dfd30 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x861/0x1a10 [ 117.720202] #2: ffffffff86212d10 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xca/0xad0 [ 117.721672] #3: ffff88801e670768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0xf2/0x6b0 [ 117.723292] [ 117.723292] stack backtrace: [ 117.723988] CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.13.0-next-20250122 #1 [ 117.725246] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 117.726480] Workqueue: netns cleanup_net [ 117.727151] Call Trace: [ 117.727559] [ 117.727921] dump_stack_lvl+0xca/0x120 [ 117.728595] print_circular_bug+0x47b/0x750 [ 117.729303] check_noncircular+0x2e9/0x3c0 [ 117.729988] ? __pfx_check_noncircular+0x10/0x10 [ 117.730763] ? hlock_class+0x4e/0x130 [ 117.731381] ? mark_lock+0xac/0xed0 [ 117.731982] ? srso_return_thunk+0x5/0x5f [ 117.732696] ? lockdep_lock+0xba/0x1b0 [ 117.733365] ? __pfx_lockdep_lock+0x10/0x10 [ 117.734128] __lock_acquire+0x29fd/0x4580 [ 117.734815] ? __pfx___lock_acquire+0x10/0x10 [ 117.735540] ? lock_release+0x20f/0x6f0 [ 117.736198] ? __pfx_lock_release+0x10/0x10 [ 117.736912] lock_acquire+0x19b/0x520 [ 117.737537] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.738456] ? __pfx_lock_acquire+0x10/0x10 [ 117.739166] ? srso_return_thunk+0x5/0x5f [ 117.739856] ? lock_release+0x20f/0x6f0 [ 117.740510] ? srso_return_thunk+0x5/0x5f [ 117.741205] ? lock_is_held_type+0x9e/0x120 [ 117.741910] ? srso_return_thunk+0x5/0x5f [ 117.742611] __mutex_lock+0x13d/0xb50 [ 117.743248] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.744180] ? unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.745124] ? srso_return_thunk+0x5/0x5f [ 117.745824] ? synchronize_rcu_expedited+0x38a/0x420 [ 117.746627] ? __pfx___mutex_lock+0x10/0x10 [ 117.747346] ? __pfx_autoremove_wake_function+0x10/0x10 [ 117.748231] ? srso_return_thunk+0x5/0x5f [ 117.748931] ? kasan_quarantine_put+0x84/0x1e0 [ 117.749693] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 117.750421] ? srso_return_thunk+0x5/0x5f [ 117.751124] unregister_netdevice_many_notify+0x1612/0x1c80 [ 117.752014] ? __virt_addr_valid+0x2e8/0x5d0 [ 117.752751] ? __pfx_lock_release+0x10/0x10 [ 117.753441] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 117.754366] ? find_held_lock+0x2c/0x110 [ 117.755036] ? srso_return_thunk+0x5/0x5f [ 117.755715] ? kernfs_remove_by_name_ns+0xc7/0x130 [ 117.756521] ? srso_return_thunk+0x5/0x5f [ 117.757203] ? lock_release+0x20f/0x6f0 [ 117.757836] ? __pfx_lock_release+0x10/0x10 [ 117.758514] ? srso_return_thunk+0x5/0x5f [ 117.759191] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 117.760008] ? srso_return_thunk+0x5/0x5f [ 117.760724] unregister_netdevice_queue+0x224/0x2e0 [ 117.761512] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 117.762376] ? up_write+0x195/0x520 [ 117.762991] _cfg80211_unregister_wdev+0x57b/0x700 [ 117.763774] ? srso_return_thunk+0x5/0x5f [ 117.764476] ieee80211_remove_interfaces+0x2f2/0x6b0 [ 117.765268] ? __pfx_ieee80211_remove_interfaces+0x10/0x10 [ 117.766126] ? srso_return_thunk+0x5/0x5f [ 117.766809] ? srso_return_thunk+0x5/0x5f [ 117.767498] ? synchronize_rcu+0x1ff/0x260 [ 117.768175] ieee80211_unregister_hw+0x55/0x3a0 [ 117.768929] hwsim_exit_net+0x3a0/0x730 [ 117.769567] ? __pfx_hwsim_exit_net+0x10/0x10 [ 117.770281] ? srso_return_thunk+0x5/0x5f [ 117.770962] ? netdev_run_todo+0x788/0x1040 [ 117.771657] ? __pfx_hwsim_exit_net+0x10/0x10 [ 117.772380] ops_exit_list+0xb3/0x180 [ 117.772996] cleanup_net+0x546/0xad0 [ 117.773597] ? __pfx_cleanup_net+0x10/0x10 [ 117.774283] process_one_work+0x8ee/0x1a10 [ 117.774981] ? __pfx_lock_acquire+0x10/0x10 [ 117.775650] ? __pfx_process_one_work+0x10/0x10 [ 117.776410] ? srso_return_thunk+0x5/0x5f [ 117.777080] ? move_linked_works+0x172/0x270 [ 117.777775] ? srso_return_thunk+0x5/0x5f [ 117.778443] ? assign_work+0x196/0x240 [ 117.779078] worker_thread+0x674/0xe70 [ 117.779723] ? lockdep_hardirqs_on_prepare+0x262/0x3f0 [ 117.780543] ? __pfx_worker_thread+0x10/0x10 [ 117.781264] kthread+0x3ab/0x720 [ 117.781830] ? __pfx_kthread+0x10/0x10 [ 117.782458] ? srso_return_thunk+0x5/0x5f [ 117.783128] ? finish_task_switch.isra.0+0x206/0x840 [ 117.783921] ? __pfx_kthread+0x10/0x10 [ 117.784561] ret_from_fork+0x48/0x80 [ 117.785136] ? __pfx_kthread+0x10/0x10 [ 117.785766] ret_from_fork_asm+0x1a/0x30 [ 117.786439] executing program executing program [ 122.376426] audit: type=1400 audit(1737562109.914:8): 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 [ 123.270322] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 124.386830] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list executing program 2025/01/22 16:08:33 syscalls: 2217 2025/01/22 16:08:33 code coverage: enabled 2025/01/22 16:08:33 comparison tracing: enabled 2025/01/22 16:08:33 extra coverage: enabled 2025/01/22 16:08:33 setuid sandbox: enabled 2025/01/22 16:08:33 namespace sandbox: enabled 2025/01/22 16:08:33 Android sandbox: enabled 2025/01/22 16:08:33 fault injection: enabled 2025/01/22 16:08:33 leak checking: enabled 2025/01/22 16:08:33 net packet injection: enabled 2025/01/22 16:08:33 net device setup: enabled 2025/01/22 16:08:33 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2025/01/22 16:08:33 devlink PCI setup: PCI device 0000:00:10.0 is not available 2025/01/22 16:08:33 USB emulation: enabled 2025/01/22 16:08:33 hci packet injection: enabled 2025/01/22 16:08:33 wifi device emulation: enabled 2025/01/22 16:08:33 802.15.4 emulation: enabled 2025/01/22 16:08:33 fetching corpus: 0, signal 0/0 (executing program) 2025/01/22 16:08:33 fetching corpus: 0, signal 0/0 (executing program) VM DIAGNOSIS: 16:08:25 Registers: info registers vcpu 0 RAX=000000000000002d RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff8283e865 RDI=ffffffff886990a0 RBP=ffffffff88699060 RSP=ffff8880095debb8 R8 =0000000000000001 R9 =ffffed10012bbd67 R10=000000000000002d R11=2d2d2d2d2d2d2d2d R12=000000000000002d R13=0000000000000001 R14=ffff888008fea02f R15=ffff8880095deeb8 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=00007ff747858998 CR3=000000000efc6000 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=0000000000000004 RBX=0000000000000406 RCX=ffffffff84a67f36 RDX=ffff888018813780 RSI=ffffffff84a67ddd RDI=0000000000000001 RBP=ffff8880161079c0 RSP=ffff8880161078d8 R8 =0000000000000007 R9 =ffffed1003cb11e7 R10=0000000000000020 R11=0000000000000000 R12=ffff88801e588f4d R13=0000000000000406 R14=0000000000000020 R15=ffffffff84ca6e43 RIP=ffffffff84a67de2 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 000000c000030b10 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=000000c00070f000 CR3=000000000efc6000 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