From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f69.google.com (mail-oo1-f69.google.com [209.85.161.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1D4BD383310 for ; Sun, 6 Sep 2026 06:53:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788677626; cv=none; b=TMf7cTvTrr787LD8wDaeugxWz33I1LK90G+MLZhGqrFIv+mSzHZBxNNaSG4lF/9ed+Bxr6RBIySF41C3rm6Y9zwVgrIoG+ItYRi6qzqj9LeDMDH3XH4abP960DqZkYNKy1zSpDjayAp/FWAFUmVz6OlGWB0FR09HxpoKOIA9PZo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788677626; c=relaxed/simple; bh=slNRKK1qqmgMRQK7dcFyyagEVRkU0/v67Mmng7ReoI4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=qY1r/yQehWvV6U0jwfTOvoutPtiY6HM/0Xfqv9JXiGVDZVr2mLnTbg2ryczeVT3Y0Kw02QnGA9nc2gzjAshhne1aEPotn041dlKQN1rOfPDatSA1CwP9ZRQ/BV+FvOGwvmKr1mLKXKwet3y7JGTIAZ9lP21sUMySZE/C+GaNm9A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.69 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f69.google.com with SMTP id 006d021491bc7-6b1b8b593a4so2644848eaf.2 for ; Sat, 05 Sep 2026 23:53:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788677624; x=1789282424; h=content-type:cc:to:from:subject:message-id:in-reply-to:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to:content-type; bh=PVZTOHUmWPPHgQn8fYuWFVTYCawkrbtKAtu0dFMRMFQ=; b=murVJ7oYStpklWCzQAYsklhqb1/6PYf2jvbVeefUnDWAzsFrcZZTLloKQRnCUu9foq ac651+4MDwAsoRNmxrhxry9ZD+ErNUq4NUW3N5vnh/LSMDQaMzecG02upxnPdSgE9CT0 RzRifNEAHPo7BCUhPzTHh5Y2U70WUhdr734WVNFXoqA5uX9P/34bIe2VFMgmvfhF6FLH 8oK3t7G6qEy4lFMWjOAYrghZnX9tB3tLsJK3LXE7BFEtJDTDADipe+3DhwsNr4MYw9eG Rw4gUD/NjGomqv42PQBHu1j9H8oeMqFIv1JoWWvqSNuu2u0JbHvixTAQKWRyQDJHmKl4 Kdjg== X-Forwarded-Encrypted: i=1; AKwUvBwEEGK/xHxBEGKZ+d6ZdVs07vSwOOE4qr9s/3vgrrX32Spe5q2acm+b7Zf+qOfmsYQxD1hNzqhkbHPFjqFycA==@vger.kernel.org X-Gm-Message-State: AFuF++lC8bkeyNSIe+YCvvJNTz5kKjZ8zNr0s/XD7sr04TTE+IIMOK8y M+CP0as/vw9dzzGo1QlqRUD3lrlYWG+DDdL+vA0hpe8+Lkx5UOK6oEb6jmIDjv3pRKoEsWUj4wl 700evHH/foMnkf8cm6Ul1iqV19qBQ+u8oUj2BP8kuCoB2W/NJsSstCV34mks= Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:a07:b0:6b9:3295:7712 with SMTP id 006d021491bc7-6b932957a0cmr2849741eaf.53.1788677624012; Sat, 05 Sep 2026 23:53:44 -0700 (PDT) Date: Sat, 05 Sep 2026 23:53:43 -0700 In-Reply-To: <20260904170140.5f69a10d606b.I4a7921d00643f69e439c7a3b221d104f66a3dcdc@changeid> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a9d0df7.0a3344eb.391530.001e.GAE@google.com> Subject: [syzbot ci] Re: wifi: mac80211_hwsim: don't hand frames to mac80211 while stopping From: syzbot ci To: johannes.berg@intel.com, johannes@sipsolutions.net, linux-wireless@vger.kernel.org, syzbot@syzkaller.appspotmail.com Cc: syzbot@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot ci has tested the following series [v1] wifi: mac80211_hwsim: don't hand frames to mac80211 while stopping https://lore.kernel.org/all/20260904170140.5f69a10d606b.I4a7921d00643f69e439c7a3b221d104f66a3dcdc@changeid * [PATCH wireless] wifi: mac80211_hwsim: don't hand frames to mac80211 while stopping and found the following issue: BUG: unable to handle kernel paging request in hwsim_cloned_frame_received_nl Full report is available here: https://ci.syzbot.org/series/219738fc-ed0e-47c8-8100-a5940fbc20b7 *** BUG: unable to handle kernel paging request in hwsim_cloned_frame_received_nl tree: wireless-next URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/wireless/wireless-next.git base: 1b60ed34f712e9f606d80951f1586f4274ebadf1 arch: amd64 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 config: https://ci.syzbot.org/builds/f0e5a89a-2d3b-4813-b1a1-01cf1b6e2ce4/config syz repro: https://ci.syzbot.org/findings/457734e4-6b31-48a4-9aa6-ac6a4c6d65ee/syz_repro BUG: unable to handle page fault for address: 00000000000048d0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10ab48067 P4D 10ab48067 PUD 0 Oops: Oops: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 5793 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:lock_release+0x85/0x3c0 kernel/locking/lockdep.c:5923 Code: 84 26 02 00 00 65 8b 05 71 68 f1 11 85 c0 0f 85 17 02 00 00 65 4c 8b 3d b1 23 f1 11 41 83 bf a4 0b 00 00 00 0f 85 01 02 00 00 <49> 81 3e e0 24 56 94 0f 84 f4 01 00 00 9c 5b fa 48 c7 c7 60 f2 48 RSP: 0018:ffffc900036ef418 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000004870 RCX: 8000000000000001 RDX: 0000000000000000 RSI: ffffffff8c6d9460 RDI: ffffffff8c6d9420 RBP: ffffc900036ef570 R08: ffffc900036ef60f R09: 0000000000000000 R10: ffffc900036ef5e0 R11: fffff520006ddec2 R12: ffff888171777aa4 R13: ffffffff873ae393 R14: 00000000000048d0 R15: ffff88810ccca580 FS: 00007fe9e40d46c0(0000) GS:ffff8882a8cd9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000048d0 CR3: 0000000113f11000 CR4: 0000000000352ef0 Call Trace: __mutex_unlock_slowpath+0x88/0x900 kernel/locking/mutex.c:989 hwsim_cloned_frame_received_nl+0x363/0xcf0 drivers/net/wireless/virtual/mac80211_hwsim_main.c:6607 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7bd/0x940 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:800 __sock_sendmsg net/socket.c:815 [inline] __sys_sendto+0x408/0x5a0 net/socket.c:2281 __do_sys_sendto net/socket.c:2288 [inline] __se_sys_sendto net/socket.c:2284 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2284 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe9e315e98e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007fe9e40d2ea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe9e40d46c0 RCX: 00007fe9e315e98e RDX: 0000000000000034 RSI: 00007fe9e40d2fe0 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007fe9e40d2f24 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000000 R14: 00007fe9e40d2fe0 R15: 0000000000000000 Modules linked in: CR2: 00000000000048d0 ---[ end trace 0000000000000000 ]--- RIP: 0010:lock_release+0x85/0x3c0 kernel/locking/lockdep.c:5923 Code: 84 26 02 00 00 65 8b 05 71 68 f1 11 85 c0 0f 85 17 02 00 00 65 4c 8b 3d b1 23 f1 11 41 83 bf a4 0b 00 00 00 0f 85 01 02 00 00 <49> 81 3e e0 24 56 94 0f 84 f4 01 00 00 9c 5b fa 48 c7 c7 60 f2 48 RSP: 0018:ffffc900036ef418 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000004870 RCX: 8000000000000001 RDX: 0000000000000000 RSI: ffffffff8c6d9460 RDI: ffffffff8c6d9420 RBP: ffffc900036ef570 R08: ffffc900036ef60f R09: 0000000000000000 R10: ffffc900036ef5e0 R11: fffff520006ddec2 R12: ffff888171777aa4 R13: ffffffff873ae393 R14: 00000000000048d0 R15: ffff88810ccca580 FS: 00007fe9e40d46c0(0000) GS:ffff8882a8cd9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000048d0 CR3: 0000000113f11000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: 84 26 test %ah,(%rsi) 2: 02 00 add (%rax),%al 4: 00 65 8b add %ah,-0x75(%rbp) 7: 05 71 68 f1 11 add $0x11f16871,%eax c: 85 c0 test %eax,%eax e: 0f 85 17 02 00 00 jne 0x22b 14: 65 4c 8b 3d b1 23 f1 mov %gs:0x11f123b1(%rip),%r15 # 0x11f123cd 1b: 11 1c: 41 83 bf a4 0b 00 00 cmpl $0x0,0xba4(%r15) 23: 00 24: 0f 85 01 02 00 00 jne 0x22b * 2a: 49 81 3e e0 24 56 94 cmpq $0xffffffff945624e0,(%r14) <-- trapping instruction 31: 0f 84 f4 01 00 00 je 0x22b 37: 9c pushf 38: 5b pop %rbx 39: fa cli 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: c7 (bad) 3d: 60 (bad) 3e: f2 repnz 3f: 48 rex.W *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com. To test a fix for this bug, please reply with `#syz test` (on a separate line) and attach the patch to the email. Notes: - The patch will be applied on top of the tested series (as an incremental fix). - To test a new version of the whole series, please send it directly to syzbot@lists.linux.dev. - Arguments like custom git repos and branches are not supported.