From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f67.google.com (mail-wm1-f67.google.com [209.85.128.67]) (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 1684F389108 for ; Wed, 4 Mar 2026 08:07:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.67 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772611680; cv=none; b=Qv0Juu5VK/7b/VsValZZQ449b6I3aS1bw5xEETd4p4CfhsTeWA/+KCNYodV5g5FRvO9eAW6KHdtoPADhWK1msqmuLB5wc4o2RLJnLEZLttXaAKUkeci9IyB8JAYsrpwbGWMwu6VHABW7mOPA0tLY13Y4DdEB6pDmmdu5ZTNhalc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772611680; c=relaxed/simple; bh=hOeg8/gd726Tdq9mrgEBZ1rywC1S35GTZQRzN2uBWyU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=pXCgQL2iKLWxMaueKmi0BPdEufPEazMaKdVRJvJ0Sepl9T7w2Bw3VahTjvA3OrJB1P+ncjFuoN1UqVNgbCkQb+e7QOSjIZfl3O11p6vWE/vdwskVa8E/YjsU4fHd2B62nZOYFFvLgpPM7qPfN+mOGAeHrH3x7etGoDNt2Pekjmo= 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=lL4LO+O3; arc=none smtp.client-ip=209.85.128.67 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="lL4LO+O3" Received: by mail-wm1-f67.google.com with SMTP id 5b1f17b1804b1-4806cc07ce7so74193645e9.1 for ; Wed, 04 Mar 2026 00:07:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1772611677; x=1773216477; 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=av4UH9SO0/Ch5JZF+nWNZV5yubzeG2c9IUi69Z0bBu0=; b=lL4LO+O3BgKMvK84ER6Dau4ujbdXtRyFovQumkZcfOUUtSmEqxcQ2TxbUKVf2N+YIz Zh8DAB1fRCRHpUbypxNE/ul4VNkCAJt7rfaXfaarb2RShYfOVCL+6EdXAcBpv8vrr0pq mWXOqGrkUVTG7cIaaCMhaBPu7gn+jgd4bPXluqOJO524ZyB3JbVEGWN95As/S/mAwZ09 cnksew7Hqr5YpwDozi3P59FfhHp2K1CHGXHkNS+4Pm0FY45PqdjOShjBcUO4d/liilP9 ckIRAYM0IGA2TfyiB4rpe8x/pMjKEPsxbfYNN2bghfeJOoM8DazpYi+fbU0HrzY6FWPF yBsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772611677; x=1773216477; 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=av4UH9SO0/Ch5JZF+nWNZV5yubzeG2c9IUi69Z0bBu0=; b=cNZnItMJ2DjPzsXYv5nOvIOdxH32rasUHRL5sLLLWto+NumUWattqkzHohrDaZOvb9 rCR/LXChljjWC2ifbxH9TrCZQBR88en2eulu3hzLeGdyt6xUB+SI3+bx3WRfyyjqhTdZ YlIAeisQCJ4uvkPk4TkBjZTllAA3l1U3LiG8qQEU4LGMuGYK7SNcObsVkun5mtQQC3Sc BJh6+pR/JGztSKR34aSFIWl8xEYWv9tg8+QA0dJm6gu64rPCk7gveijyGUPdgs9XZxw5 mjK1DLfO8GFQ5857xOe4aC+c4agrXVCEprEcC0z4zpYRekNZVqs01iBc7Maa5y9nPvCy fvcQ== X-Forwarded-Encrypted: i=1; AJvYcCU4NkV3hbu8SflX5r4bt1DtHW/X7m/pKj8yeWD3xI4QoiYRhd0+NoxU5KzjsvidqecYhofXm3I61w9dO6w=@vger.kernel.org X-Gm-Message-State: AOJu0YwZg6pwt3jgEU2OT4ExRPz7TRujQp3McQaEGvvCvWK9O0zHo9Jh XCSX6ijndcTCmpLvuxxzjFT8UCapC0cmwhDMG+2fP2bnwW5+b8a6jbyi X-Gm-Gg: ATEYQzywW7dBVBEdBRtymTqlTQR00JWezgPWcXEbpgLeMeGk/NZxICvPx7J/NFDYCxD KBlU118OMD7mMXPDlKrYYBXRK5bH2RIgpftjVbgLXIceSCtM90gumXyPF3eka8oH/uqbivAa/Ty HzDgpb+A51gqO3LVC8ski93i+fdhZYEiFxgYfQrCSdCWnosVc/PR27GnykcLjFs/nxfL0EGD1xC VkVAzPikvF/JFgwEw+EdgcB5jgNW5tml0CI94QfEI+UHp+T9NNRCTIC7L1slFG3DatwIc5w7lgS KHC0t+B2RfFKH+HB9OCDVwNLtcuLRB0GpcOO1v9GvLgbdSp2aBcqO2lA7+Nn/ihO5HzfnWjnkip NbVOaL03TPMDv7mcGSObaoOAD+5dvpPnT8LeB7PXFLKlqkkC7IJS6EmkExWKfao3FTP8jdekxpX d/s8Ksb8iGgzcpfa5/gEGD1Zq+0o2MTAp6r9HChXgeOJALg6ubMA== X-Received: by 2002:a05:600c:1d0e:b0:482:eec4:76d with SMTP id 5b1f17b1804b1-48519888ab3mr17588355e9.17.1772611677114; Wed, 04 Mar 2026 00:07:57 -0800 (PST) Received: from lima-ubuntu.hz.ali.com ([47.246.98.208]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4851a82c876sm5400915e9.0.2026.03.04.00.07.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Mar 2026 00:07:56 -0800 (PST) From: Qing Wang To: syzbot+9ea7c90be2b24e189592@syzkaller.appspotmail.com Cc: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, eddyz87@gmail.com, haoluo@google.com, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, martin.lau@linux.dev, mathieu.desnoyers@efficios.com, mattbobrowski@google.com, mhiramat@kernel.org, rostedt@goodmis.org, sdf@fomichev.me, song@kernel.org, syzkaller-bugs@googlegroups.com, wangqing7171@gmail.com, yonghong.song@linux.dev Subject: Re: [syzbot] [bpf?] [trace?] KASAN: slab-use-after-free Read in bpf_trace_run3 (2) Date: Wed, 4 Mar 2026 16:07:39 +0800 Message-Id: <20260304080739.198251-1-wangqing7171@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <69a7e4df.050a0220.21ae90.0014.GAE@google.com> References: <69a7e4df.050a0220.21ae90.0014.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: 8bit On Wed, 04 Mar 2026 at 15:53, syzbot wrote: > Hello, > > syzbot has tested the proposed patch and the reproducer did not trigger any issue: > > Reported-by: syzbot+9ea7c90be2b24e189592@syzkaller.appspotmail.com > Tested-by: syzbot+9ea7c90be2b24e189592@syzkaller.appspotmail.com > > Tested on: > > commit: 0031c068 Merge tag 'cgroup-for-7.0-rc2-fixes' of git:/.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=12afb006580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=c5c49ee0942d1cdb > dashboard link: https://syzkaller.appspot.com/bug?extid=9ea7c90be2b24e189592 > compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 > patch: https://syzkaller.appspot.com/x/patch.diff?x=1566e552580000 > > Note: testing is done by a robot and is best-effort only. It's same as [0]. [0] https://syzkaller.appspot.com/bug?extid=b4c5ad098c821bf8d8bc I sent the fixed patch [1] to [0]. [1] https://lore.kernel.org/all/20260304070927.178464-1-wangqing7171@gmail.com/T/ -- Qing