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[syzbot] [wireless?] possible deadlock in ieee80211_unregister_hw | 0 (1) | 2024/11/06 06:52 |
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[syzbot] [wireless?] possible deadlock in ieee80211_unregister_hw | 0 (1) | 2024/11/06 06:52 |
====================================================== WARNING: possible circular locking dependency detected 6.12.0-rc6-syzkaller-00192-gf1dce1f09380 #0 Not tainted ------------------------------------------------------ kworker/u32:5/188 is trying to acquire lock: but task is already holding lock: which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&rdev->wiphy.mtx){+.+.}-{3:3}: __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752 wiphy_lock include/net/cfg80211.h:6014 [inline] ieee80211_open+0x12f/0x260 net/mac80211/iface.c:449 __dev_open+0x2d4/0x4e0 net/core/dev.c:1476 do_setlink+0xd24/0x41c0 net/core/rtnetlink.c:2936 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2551 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 -> #0 (team->team_lock_key#2){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x250b/0x3ce0 kernel/locking/lockdep.c:5202 notifier_call_chain+0xb9/0x410 kernel/notifier.c:93 ieee80211_remove_interfaces+0x36d/0x760 net/mac80211/iface.c:2300 mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim.c:5625 [inline] hwsim_exit_net+0x3ad/0x7d0 drivers/net/wireless/virtual/mac80211_hwsim.c:6505 cleanup_net+0x5b7/0xb40 net/core/net_namespace.c:626 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 other info that might help us debug this: CPU0 CPU1 lock(&rdev->wiphy.mtx); lock(team->team_lock_key#2); *** DEADLOCK *** #3: ffffffff8fee32a8 (rtnl_mutex){+.+.}-{3:3}, at: ieee80211_unregister_hw+0x4d/0x3a0 net/mac80211/main.c:1664 stack backtrace: Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x250b/0x3ce0 kernel/locking/lockdep.c:5202 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752 team_device_event+0xd0/0x770 drivers/net/team/team_core.c:2984 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1996 unregister_netdevice_many net/core/dev.c:11469 [inline] unregister_netdevice_queue+0x307/0x3f0 net/core/dev.c:11343 cleanup_net+0x5b7/0xb40 net/core/net_namespace.c:626 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> team0: Port device wlan1 removed
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/11/09 08:54 | upstream | f1dce1f09380 | 6b856513 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | possible deadlock in ieee80211_unregister_hw | ||
2024/11/02 06:42 | upstream | 05b92660cdfe | f00eed24 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | possible deadlock in ieee80211_unregister_hw |