From nobody Sat Feb 7 23:23:00 2026 Received: from mail-pl1-f182.google.com (mail-pl1-f182.google.com [209.85.214.182]) (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 04DFB32C303 for ; Tue, 16 Dec 2025 04:00:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765857655; cv=none; b=SABVl+pwKcJF7Zqxmautyk8nyYXb3IqnwKMFmD5EjiuQplWC85OrAX15S0mLvRQK/VVC+VvFj/qNmCCEm45s6xc/x86fDyvINMCvhTuHMGZt6467UTfmKFPEEj6xgo1vIV2tKrTD64e23yyGpGZqpix4XVf0UxEsH8p+0RgaHeo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765857655; c=relaxed/simple; bh=ITo4f1ye+3ONUsUTYHIV9+vq45fgxRSCb5RTsvRpKEQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Hg0NLDuIT+9p5IFEf9wnf7yygQzDqMDYNIpbgHErmL9cMjMBfQZ+TPsEQ2V0TrkeJddILTGsFK159UVnBjV9EET4Hc3NJi6CORi3knzReHmWKI02n79swGRtSPAfwjTcPSVLp6xCE6cm5Zr9zFHA/HLM9wZnRKyh52Qc+DxVvoo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=N5n4gzbj; arc=none smtp.client-ip=209.85.214.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="N5n4gzbj" Received: by mail-pl1-f182.google.com with SMTP id d9443c01a7336-29f30233d8aso40285935ad.0 for ; Mon, 15 Dec 2025 20:00:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1765857639; x=1766462439; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=tLKyDg7KGa0B81T7SZGWL6KI4wf1AUYvxVh+ahhXSkw=; b=N5n4gzbjncynyYA0w2JSsdTM20zwfhf2xcyQR/q4NbOOFfLSBWd5CNKJzM6BPg/zO7 UpaTBtiN/y5lYmK5s+crof4t4SlYZ5pOIBb9pAxwwFxS0WKQwu45ktJZbPimdgXfv3xf HLmm6mpVQ/hqZHUY5bmkyUphRc50XgrHAH5vR+n6352eRSZYocW9Xph+8qDFXlz+cSfd 3ghRi9q0POZGSgo0AFBCHD4A/k8ehwmzqAr5THjMsjACCy//qrAhkFLWo6I23sXRoMyf vc9IjjtU7kiHgAXwNxa+diPtlz24zWDsx/LKuoMpZF1qsNfoaRaIsIwOyHMmA1dkym9F UCDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1765857639; x=1766462439; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=tLKyDg7KGa0B81T7SZGWL6KI4wf1AUYvxVh+ahhXSkw=; b=m2+DAV+w4ZRJZJGEYLWbtIctw0RGrAGVWONE0GY6TTLCPKt6h7BzBgJ8FpcAysAM3F y+Iyic14sNsBSdGAo9Pd32yUCMSExW3lPZJvBXyB3dWhSoN4s8sO+KH1mUzSiT+la7C2 cpTH/BfHVic+LDZzGJ6xzxLzZ/bz15S6n/arWWDdH9KI+HQx0xkU93pXR2c7lhEkzg0J zD1FHDviSC8SEE7GGdzsjesTp86VDotUpPf8Vds4SsW3xtpeOG4T0ZwKYIMI1NbsxgMf n7mM7WOh4ZYGbRZokGHz541aT9nf1LXmmvukwhQ9r4yIPLAlrY35u5ddypVT6MKmy06d neww== X-Forwarded-Encrypted: i=1; AJvYcCVlM/DDLS/v/fYEHaTcgbcAhXIRO7aWG23yDLN57JgFAmWbO24uPvaXU/GKGa9GjiM1nER9SyxPD/hhJAo=@vger.kernel.org X-Gm-Message-State: AOJu0YyMbBusmZVfvB9xt77zSLNvF1kk+bImxuwc4bIMabzTbEAH8Ckd rL0dlKg5sVr/AQ53rogJg8hkbNppCXGOYCbqPdv/qeMEuG3z9qrlZyDD X-Gm-Gg: AY/fxX5BXW8bd+wQFUWykpp7SocDNJODcaKD905jHaiKB79ZEoLdcP1MBb/32i1MnYX +4jXBkpW6oDkq8A65n1S6kX/bkgZjpU/uuzLoC82ztoU7DopvdZLn6WjaRiFeLwtKwf44Y2lASI 5yQ3nKcNErbeMfyI/1Sj21w8tZUJWfNSSP/8Y7O4dhldQKMXewhF+HNt6TqeFF5P+WooJo5S8yY 4Yks1kubfHTLb0VKaH5L4Q7oJiTsmQyaiT3RtX36GLaNY2YJk4tMZCJMMnvnbEFAVwW1ZNZwmju p7Cy9hNvy8JYZBxPdev7M1GwGh1vFkZg+J7UdBuia0jJkug94jzZPpG38aNp3aFISK/cxfbOXYg yhVUKA8G5lghQ6jVFEHkAP7fknfXdehi+CRwMhHG1RTtDCOcxCPXwRCNxgduhY7dYqWU46gIn6C 3xyhzWliu8N0nX3LBHqU3s+vg2gfdXADHR0JXV+0iyarzf8zyuBilooxzQeGOTNGQs X-Google-Smtp-Source: AGHT+IEEhzEnRHF5lq+yL/BRtzeP7AhvEd4LTzPt9a719vVEkCoMqCzaOFQDfNuqe4rQ5yUe38aR0w== X-Received: by 2002:a17:903:3808:b0:29e:fb50:5bd2 with SMTP id d9443c01a7336-29f23d29df9mr117486945ad.58.1765857639374; Mon, 15 Dec 2025 20:00:39 -0800 (PST) Received: from work-kernel.moonhee.lan (d75-156-73-135.bchsia.telus.net. [75.156.73.135]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-34abe2c1664sm10289995a91.17.2025.12.15.20.00.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Dec 2025 20:00:38 -0800 (PST) From: Moon Hee Lee To: johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, syzbot+b364457b2d1d4e4a3054@syzkaller.appspotmail.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, Moon Hee Lee Subject: [PATCH] mac80211: ocb: skip rx_no_sta when interface is not joined Date: Mon, 15 Dec 2025 19:59:32 -0800 Message-ID: <20251216035932.18332-1-moonhee.lee.ca@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <6940d2ef.a70a0220.33cd7b.012f.GAE@google.com> References: <6940d2ef.a70a0220.33cd7b.012f.GAE@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" ieee80211_ocb_rx_no_sta() assumes a valid channel context, which is only present after JOIN_OCB. RX may run before JOIN_OCB is executed, in which case the OCB interface is not operational. Skip RX peer handling when the interface is not joined to avoid warnings in the RX path. Reported-by: syzbot+b364457b2d1d4e4a3054@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=3Db364457b2d1d4e4a3054 Tested-by: syzbot+b364457b2d1d4e4a3054@syzkaller.appspotmail.com Signed-off-by: Moon Hee Lee --- net/mac80211/ocb.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/ocb.c b/net/mac80211/ocb.c index a5d4358f122a..ebb4f4d88c23 100644 --- a/net/mac80211/ocb.c +++ b/net/mac80211/ocb.c @@ -47,6 +47,9 @@ void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data= *sdata, struct sta_info *sta; int band; =20 + if (!ifocb->joined) + return; + /* XXX: Consider removing the least recently used entry and * allow new one to be added. */ --=20 2.43.0