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Message-ID: <0000000000001850d105e9f9e6de@google.com> Date: Sat, 01 Oct 2022 07:26:40 -0700 From: syzbot <syzbot+4ef359e6b423499fa4e1@...kaller.appspotmail.com> To: davem@...emloft.net, edumazet@...gle.com, johannes@...solutions.net, kuba@...nel.org, linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, pabeni@...hat.com, syzkaller-bugs@...glegroups.com Subject: [syzbot] WARNING: lock held when returning to user space in ieee80211_change_mac Hello, syzbot found the following issue on: HEAD commit: 6627a2074d5c net/smc: Support SO_REUSEPORT git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=10183a70880000 kernel config: https://syzkaller.appspot.com/x/.config?x=d4d64087513b5aa1 dashboard link: https://syzkaller.appspot.com/bug?extid=4ef359e6b423499fa4e1 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/9ecb75606956/disk-6627a207.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/1073865fcb40/vmlinux-6627a207.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4ef359e6b423499fa4e1@...kaller.appspotmail.com ================================================ WARNING: lock held when returning to user space! 6.0.0-rc6-syzkaller-01407-g6627a2074d5c #0 Not tainted ------------------------------------------------ syz-executor.3/10164 is leaving the kernel with locks still held! 1 lock held by syz-executor.3/10164: #0: ffff888147acaa88 (&local->mtx){+.+.}-{3:3}, at: ieee80211_can_powered_addr_change net/mac80211/iface.c:217 [inline] #0: ffff888147acaa88 (&local->mtx){+.+.}-{3:3}, at: ieee80211_change_mac+0x9b4/0xf40 net/mac80211/iface.c:264 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@...glegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
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