From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8219326A0B3; Tue, 8 Apr 2025 12:21:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744114877; cv=none; b=X01qlZOS6foGOpp5K/46iO9ZyMBkiUUxrhoLLKDvINfcy+OQ+WAB61qT8NSqAFHkRRvZaqCl1+/uERgW/w4aSN2lyzBiyba86snomUgc8tkqBuo30vjmDEX1WB2N1hrIhDoNaKX6wXoum4DsKbJZr8uebtTEbTvWuIaJerpF0Po= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744114877; c=relaxed/simple; bh=9PalclusiZb+8GvFTtKzDWjT5q4iCq5vQEpvYX2uP0w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rrHm5Cc8WUrmhBOf1YCU5iKedtzRAQCSdHFbp/SJJy+LX0EzcHLyWMm0IQYPJtW7X8J7UvQzmZRyRpwkJNbhUrmZ5v+dmHSBsWcfUaZPB1ihikVaac7/qqC6cDcLcWHmroZmNtaCiBRLZTsRsK+cPPQOCuMgb14WYizHDW5dEsQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=YWPDsLhV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="YWPDsLhV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7368FC4CEE5; Tue, 8 Apr 2025 12:21:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744114875; bh=9PalclusiZb+8GvFTtKzDWjT5q4iCq5vQEpvYX2uP0w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YWPDsLhV478JxyUiUvSh6KHCd51QmiOO/NnNVbbp1uafrmN0TIhmev5ncfz09EGUh WIhU3KAQH78zpsMELe4QWfsOW4FPaC3E2SvZMw2YfbH2Omc/2U4RTO7NzL0IDzeejU c1LGq+1OGqO6dddf61C/JQHuFL1OwUGoFINGyCl8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Bart Van Assche , Kees Cook , "Eric W. Biederman" , Alexey Dobriyan , Andrew Morton , Sasha Levin Subject: [PATCH 6.13 268/499] fs/procfs: fix the comment above proc_pid_wchan() Date: Tue, 8 Apr 2025 12:48:00 +0200 Message-ID: <20250408104857.900672838@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408104851.256868745@linuxfoundation.org> References: <20250408104851.256868745@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: Bart Van Assche [ Upstream commit 6287fbad1cd91f0c25cdc3a580499060828a8f30 ] proc_pid_wchan() used to report kernel addresses to user space but that is no longer the case today. Bring the comment above proc_pid_wchan() in sync with the implementation. Link: https://lkml.kernel.org/r/20250319210222.1518771-1-bvanassche@acm.org Fixes: b2f73922d119 ("fs/proc, core/debug: Don't expose absolute kernel addresses via wchan") Signed-off-by: Bart Van Assche Cc: Kees Cook Cc: Eric W. Biederman Cc: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Sasha Levin --- fs/proc/base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 0edf14a9840ef..75a36388c302b 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -416,7 +416,7 @@ static const struct file_operations proc_pid_cmdline_ops = { #ifdef CONFIG_KALLSYMS /* * Provides a wchan file via kallsyms in a proper one-value-per-file format. - * Returns the resolved symbol. If that fails, simply return the address. + * Returns the resolved symbol to user space. */ static int proc_pid_wchan(struct seq_file *m, struct pid_namespace *ns, struct pid *pid, struct task_struct *task) -- 2.39.5