Hello, syzbot found the following issue on: HEAD commit: eebe426d Merge tag 'fixes-for-5.12-rc7' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15e73ceed00000 kernel config: https://syzkaller.appspot.com/x/.config?x=9c3d8981d2bdb103 dashboard link: https://syzkaller.appspot.com/bug?extid=26727b5e00947e02242c compiler: Debian clang version 11.0.1-2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+26727b5e00947e02242c@xxxxxxxxxxxxxxxxxxxxxxxxx divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 13049 Comm: kworker/u4:16 Not tainted 5.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy10 ieee80211_roc_work RIP: 0010:mac80211_hwsim_bss_info_changed+0x514/0xf90 drivers/net/wireless/mac80211_hwsim.c:2024 Code: 48 b8 00 00 00 00 00 fc ff df 80 7c 05 00 00 74 0a 48 8b 7c 24 08 e8 9b a6 68 fc 48 8b 44 24 08 48 8b 08 89 ce 48 89 d8 31 d2 <48> f7 f6 29 d1 48 69 f1 e8 03 00 00 48 8b 7c 24 10 31 d2 b9 05 00 RSP: 0018:ffffc900023bfb88 EFLAGS: 00010246 RAX: 0005bfe4b761f015 RBX: 0005bfe4b761f015 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000040 RBP: 1ffff11004556dcf R08: ffffffff81698b49 R09: fffffbfff1f272bd R10: fffffbfff1f272bd R11: 0000000000000000 R12: ffff888022ab0d50 R13: 0000000000000200 R14: ffff888022ab6fd8 R15: 1ffff110045561aa FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000543038 CR3: 000000007746b000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drv_bss_info_changed net/mac80211/driver-ops.h:177 [inline] ieee80211_bss_info_change_notify+0x27c/0x3a0 net/mac80211/main.c:210 ieee80211_offchannel_return+0x33b/0x470 net/mac80211/offchannel.c:158 __ieee80211_roc_work+0x282/0x340 net/mac80211/offchannel.c:444 ieee80211_roc_work+0x2b/0x40 net/mac80211/offchannel.c:458 process_one_work+0x789/0xfd0 kernel/workqueue.c:2275 worker_thread+0xac1/0x1300 kernel/workqueue.c:2421 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace 2380ddc5fa748069 ]--- RIP: 0010:mac80211_hwsim_bss_info_changed+0x514/0xf90 drivers/net/wireless/mac80211_hwsim.c:2024 Code: 48 b8 00 00 00 00 00 fc ff df 80 7c 05 00 00 74 0a 48 8b 7c 24 08 e8 9b a6 68 fc 48 8b 44 24 08 48 8b 08 89 ce 48 89 d8 31 d2 <48> f7 f6 29 d1 48 69 f1 e8 03 00 00 48 8b 7c 24 10 31 d2 b9 05 00 RSP: 0018:ffffc900023bfb88 EFLAGS: 00010246 RAX: 0005bfe4b761f015 RBX: 0005bfe4b761f015 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000040 RBP: 1ffff11004556dcf R08: ffffffff81698b49 R09: fffffbfff1f272bd R10: fffffbfff1f272bd R11: 0000000000000000 R12: ffff888022ab0d50 R13: 0000000000000200 R14: ffff888022ab6fd8 R15: 1ffff110045561aa FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000219a708 CR3: 000000007746b000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
