From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f71.google.com (mail-ot1-f71.google.com [209.85.210.71]) (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 49972388360 for ; Mon, 6 Jul 2026 13:36:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783344968; cv=none; b=Yr937rUxqcbPXSzK50mHIOwOonbiWRGPhbmnCgsZdjJ6h17VRzjeGOHsdT5Wg2zHO36nuB70F7o1wiEDcYoC/2BioUgXIS69xr809sYgZ2ZWFSmwpi6kkvTHrrnmlOeBkI/mCzAa4MsYIPT+OfCRpftjrq8lDZ3brjsDX20OV4k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783344968; c=relaxed/simple; bh=8wmDp+LazNlk7TYX9kDcV36knUmnmlwSlBjzVUSGtvM=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=GoPxfuSceDTpb7rA/mJ51KS941H2DNufBWJ4+tT9bQVrU4w1YE65rxpn7kTELj/nN5NW9IrsIIRU6yBXtRJvTtzIO8xPAQJe4RPr2LsJ94TZ8bCf/R8taUaAlIKi1Ma0Y5qye7rb896ZPmzcpwaeo/B83jrZCUSeLLow1WtpEEY= 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=209.85.210.71 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-ot1-f71.google.com with SMTP id 46e09a7af769-7eb58b8b31aso3993919a34.3 for ; Mon, 06 Jul 2026 06:36:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783344966; x=1783949766; h=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; bh=4uaLEBtX6LKwJj6vl5cHDFBsXdKQPHjBiPaFOvy3EtQ=; b=Cc7f0T+rVh/mWobSbt2TpqsZnJNYTtnFKcG2klnahLDA3oVnrEHClUEeXQPAvFT6uc b7/l+3LJZt0cNvxXn5iATpPIy8/IUO3A3KErktbQ/0e/smbG7VXdW4pd1CYPZgeC4Lvy f/FRFBpjgVTnLTxWHeqRUyBDyiHfV/E5/sxXnsciJ9Qmgj/McMmKYALyw69eZfptFgu0 y2xMlHg5IzNiAGC3lduS0O36FWbEc3wg0jgI1d0YZSrVh4jV3XWHDK4Wem/x9b7ISQb3 kOgXqcKbgzFETfXqQhNrtRxZESL3N1ZSvEirJIEI0ReiQwMriF3Habbk05zS6zKizD4G /ZEw== X-Forwarded-Encrypted: i=1; AFNElJ/Sy4pPj9wCDfPr3vcKpyuJEIwAJxNsF4rpcpKyZUh+MHGAv4OS1pf+JpYfdnY3Z9cNGcZvcdZrwqyRVOo=@vger.kernel.org X-Gm-Message-State: AOJu0YwmClp/YIHCkO3wh91MXk4Rp1W5O7EKrrRiLfoFoiFj8VPSY4qt FvZSzV025jzTNlNqkepcnWSYxrvwR+tpBBpLY6PvbWes5ML+f9KNN4KeI0vxEDGwTck9mxlDebK MBvqQ9ahBG9E0mXWzIvub09AntOEi6wCSlQP/06pfZMStumxguVqnm9xAFB8= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1ca6:b0:6a1:3e91:dca8 with SMTP id 006d021491bc7-6a35539ce91mr299262eaf.24.1783344966253; Mon, 06 Jul 2026 06:36:06 -0700 (PDT) Date: Mon, 06 Jul 2026 06:36:06 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a4baf46.b42ede87.8bd1.0027.GAE@google.com> Subject: Re: [syzbot] [mm?] KASAN: invalid-free in rcu_free_sheaf From: syzbot To: malayarout91@gmail.com Cc: malayarout91@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > Hi, > > Please test the following patch. > > #syz test This crash does not have a reproducer. I cannot test it. > > diff --git a/drivers/net/ieee802154/mac802154_hwsim.c > b/drivers/net/ieee802154/mac802154_hwsim.c > index 6daa0f198b9f..99d52a2323ac 100644 > --- a/drivers/net/ieee802154/mac802154_hwsim.c > +++ b/drivers/net/ieee802154/mac802154_hwsim.c > @@ -113,7 +113,8 @@ static int hwsim_update_pib(struct ieee802154_hw > *hw, u8 page, u8 channel, > pib->filt_level = filt_level; > > rcu_assign_pointer(phy->pib, pib); > - kfree_rcu(pib_old, rcu); > + if (pib_old) > + kfree_rcu(pib_old, rcu); > return 0; > }