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AJvYcCWyodfBdZP3tP6q5XdB0HR03YA/Kn3UD1gx7Ti96+YP2Y/mn+UD7nxqR/tG2EEzPgAcJ/KwvRsE8V5t+PnBpL1kgGSkDKMrKUUTPitjKd4yenUg5W9mzXKr1zyiVti2Mnawcth1bnbY16X1qbOFJ2lAwkDoOlm3OM2YbZjBFykucJIImsDTMFmm X-Gm-Message-State: AOJu0YyIwQ+2zf3nqw1KIKaipA3nd///7jJ0usghJQYifxt6k9gr/NAJ GsVz1uUc2TT1MMCq+n6bG9YeDM28cVstwqFLAsSdluXdpYfRnMZ0 X-Google-Smtp-Source: AGHT+IGWNH/d4DiodPEdB26qrebgsENU+INw6QtOxlRY2mFtLN0Dgz4d/3ACwf2nEdp+Zxpu9Y8Ymw== X-Received: by 2002:a17:902:e54f:b0:1fa:ff88:894a with SMTP id d9443c01a7336-1fb33e199bemr9149485ad.20.1720091799398; Thu, 04 Jul 2024 04:16:39 -0700 (PDT) Received: from [10.150.96.32] ([14.34.86.36]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1faceb78c6csm112263165ad.271.2024.07.04.04.16.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 04 Jul 2024 04:16:38 -0700 (PDT) Message-ID: <6391f34a-b401-47e8-8093-d3b067f26c1b@gmail.com> Date: Thu, 4 Jul 2024 20:16:34 +0900 Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] tracing/net_sched: NULL pointer dereference in perf_trace_qdisc_reset() To: Greg Kroah-Hartman , Jakub Kicinski Cc: stable@vger.kernel.org, Paolo Abeni , Sasha Levin , Steven Rostedt , Taehee Yoo , Pedro Tammela , Austin Kim , MichelleJin , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, netdev@vger.kernel.org, ppbuk5246@gmail.com, Yeoreum Yun References: <20240702180146.5126-2-yskelg@gmail.com> <20240703191835.2cc2606f@kernel.org> <2024070400-slideshow-professor-af80@gregkh> Content-Language: en-US From: Yunseong Kim In-Reply-To: <2024070400-slideshow-professor-af80@gregkh> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Greg, Hi Jakub On 7/4/24 6:32 오후, Greg Kroah-Hartman wrote: > On Wed, Jul 03, 2024 at 07:18:35PM -0700, Jakub Kicinski wrote: >> On Wed, 3 Jul 2024 03:01:47 +0900 Yunseong Kim wrote: >>> Support backports for stable version. There are two places where null >>> deref could happen before >>> commit 2c92ca849fcc ("tracing/treewide: Remove second parameter of __assign_str()") >>> Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home/ >>> >>> I've checked +v6.1.82 +v6.6.22 +v6.7.10, +v6.8, +6.9, this version need >>> to be applied, So, I applied the patch, tested it again, and confirmed >>> working fine. >> >> You're missing the customary "[ Upstream commit ]" >> line, not sure Greg will pick this up. >> > > Yeah, I missed this, needs to be very obvious what is happening here. > I'll replace the version in the queues with this one now, thanks. > > greg k-h Thank you for your hard work. This fix need to be applied versions in +v5.10.213, +v5.15.152, +v6.1.82 +v6.6.22, +v6.7.10, +v6.8, +6.9 Warm regards, Yunseong Kim