From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f174.google.com (mail-pg1-f174.google.com [209.85.215.174]) (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 14DA844C508 for ; Fri, 28 Aug 2026 12:54:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787921687; cv=none; b=iy8L5ifhVw/W89mQ4voW3n87SXfN60qsNdgc3qI0lIIpttMBGH5F4W56imsZedH5aJq74ZjQnKYy9I1S4kjohN6OAFRSvRGJpaH0rzLELDDLoHuACExMr4USfDRccHjzyJ0ZN7C7844OdYMgzD0Z7xzMCNriQAdVa6IOWdJkl1I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787921687; c=relaxed/simple; bh=wc+vvhQ+dNmyiyK6AVxTIJHxL2dc2ZcZe9QfHmSZUIY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sRABGJtS3XvIvymD/WiohOplsuLdqFTMZwV7qH//wvjgPEValnx7l80VdtWRIL9aeBLdgZY89S5epJqyn+GkYLYbmgLAoxv8l8IvdcVDhlmepzcW9FsySTlMDKinHhwRmQrsUFiqRVmVUkjFab3X43OJD5LfM3oepuGmlgS6COE= 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=LMI88nze; arc=none smtp.client-ip=209.85.215.174 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="LMI88nze" Received: by mail-pg1-f174.google.com with SMTP id 41be03b00d2f7-cbb8b54fcf8so1085461a12.0 for ; Fri, 28 Aug 2026 05:54:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1787921685; x=1788526485; 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:content-type; bh=F/VYSNIA4jxHryEAnHq111uwk8QXMnh2ArI3dQwMk8M=; b=LMI88nze3W6yNjIZFdB9lRCJb93m0gwTAgk/fWO3AyBmjJcLeNMjGGN5SgE11pu9Bc AN/sJdLPpTvPaZaZRhI0RuYF/vId6HlqwtA1PbYLF1TQHf8/v7/Q02zxiQx3wxLRxXA/ uPrbFp3LC9cDKVyoVp7L45feor/16yIg/g21P18LYdSq+4TidhnVCARVYRQxoBszGqCW CQpBxkhJ4g2p9A2pbImBZ1CbkCN1dK70Ck/cCjrI/+VCPqwZzGTipYxLdCLk12mvuiDR 6pziSXmdD8aE5hLGyhUnHjjfUKwALGf0hRqBsdCxVb8q8eQPTK7BtH+nZ7bJYMUbwVO5 CSjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787921685; x=1788526485; 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:content-type; bh=F/VYSNIA4jxHryEAnHq111uwk8QXMnh2ArI3dQwMk8M=; b=feMzEemMzvk8kr+HRtO5/hGe1yNkLZZdRde5ImBPzG1EmXNyNhP1RIVU9zJmT8cpTO LC7sHPX9tIsS+58lgCgsBmbgwbOn+vj6s95TIP51G0TYzdsAuimDBmffkZzPAdV9gzDr rJFjjfs1yxSR97xHroZy8egXCvOCz3/l1fUj6XgHhKu7tgNlHTE1CpJWj5GMIIv4L9yX 4W09SwZZrq8tY3FGeKWWVtRu0jtUqFZDzNIvCluU8LV1wlVRMf8p7Hw21QOWi3mEXoa3 MKhEpF48vlY2jMhc4/yMRGw2aMDwVQWlniqxxS/w5IFExoVxYY9Dw1gEBEkPPKVtow3N 0Chg== X-Forwarded-Encrypted: i=1; AHgh+RoS21GRUa1NqXif/OpqGSBbBUaHeUbruPpBYNcJqqlqlJN8dJNPJg6sfRwKbnF/UNy2qxxoEkCqHx3TIQ==@vger.kernel.org X-Gm-Message-State: AFuF++lrairqvubSOICdQdvCPLkZr0c5FfPrYQLqjZf2KpFzaL3dYXnE RO9kGNf4ZHChgI81rX0JM1NQs+xZykwhBC96rg+NqY8Uvoqj9YfUdrmK X-Gm-Gg: AR+sD11gnPeiAOBJiSYR6wG73+7fZiV4oFQHoD7Sl61S1PPPTjMD1xzq1WYcUcl4g4r PSX0MT5lmHxUDCjv+hsaec8U6dEwPOA//lEAgoPnUg2gW4QgzwD/mfgBBG02RM6RI92nPpxFQP7 YCeiv+VimXH3nWlKPTukl8NP+HpmiLzi1nN3bz/LFCee/b1NhM28hnOb72IiBKTnurAcJpxUXf2 QLnQX08D7AqZd34GfkYNqWGbsZ8uT0679Q2QFBmX6YPoIXgomlqs8W5ch7oW3rGIOMl1GnvqqBG Q0ZJoqrJG9fB1HPmV2m4JoVU1oKjP5j2eLEaMmSyUgnM4JHtsYehxPAgFvCOqlrosyHI7FklhOW mzfDj1bAgv/ohyf5ZZcSCYqPUKLDh0DQEeyeap3qlvm2UkU4vvLS5CeMHwQ5EeIo/LuneYmcViA kwjYbT0Rs9v9HNk7IGqHYDx4ackcqvuZ2eGVdz+u/iOaruW8t+mcWmhPwmSuEMZMBD X-Received: by 2002:a17:90b:440c:b0:381:6c5:3f63 with SMTP id 98e67ed59e1d1-396d0eab08bmr13666774a91.6.1787921685323; Fri, 28 Aug 2026 05:54:45 -0700 (PDT) Received: from Default ([2409:40f4:101e:9d7e:7e26:7b81:64f6:f32]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-142e0dc898dsm5897027c88.9.2026.08.28.05.54.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Aug 2026 05:54:44 -0700 (PDT) From: Jeffin Philip To: syzbot+1e2ef9bcb29af666b2e6@syzkaller.appspotmail.com Cc: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: [syzbot] [input?] KASAN: slab-use-after-free Read in atkbd_set_repeat_rate Date: Fri, 28 Aug 2026 18:24:30 +0530 Message-ID: <20260828125430.11470-1-jeffinphilip14@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <6a90d9ef.4d659fcc.734b4.0019.GAE@google.com> References: <6a90d9ef.4d659fcc.734b4.0019.GAE@google.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 818bebeb63dd diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c index 5736f4bc5a50..056aa98f13e2 100644 --- a/drivers/input/keyboard/atkbd.c +++ b/drivers/input/keyboard/atkbd.c @@ -706,6 +706,7 @@ static inline void atkbd_enable(struct atkbd *atkbd) static inline void atkbd_disable(struct atkbd *atkbd) { + guard(mutex)(atkbd->mutex); guard(serio_pause_rx)(atkbd->ps2dev.serio); atkbd->enabled = false;