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 5DB9A15885E; Tue, 9 Jul 2024 11:23:07 +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=1720524187; cv=none; b=BQWukZrpdERD6qjDnTHhCy918hUI1Mh5KI1TZNuVZc5UwZ1gluHKDvUVpzeED77SCxdOPnEVa7YaiWTmVlqT/QsndEDhRybeATRPQBS88bwRCD9bL8fci0wcxo+KqPksmeNau0yOibbdmAWmMN1WkVDHKpKvLfcMHIh7WG0S578= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720524187; c=relaxed/simple; bh=9/K02CPb7CaRglUCVXTCkAoz9MmF/35+zu2wzucCq6k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=M1oocZDHrojHw+sQ+DkPbX+18YghjPjfkLgbanDj+q3sW9OVnb3r8WkQYUpXrMnCk+38mf/buIedf71yQBGTwwR19HzjU4gj0p2yQdy/Rxf98YwMxlZHsE3wJb13Z4NpRJrpi03yB6izcXTcix8qTK86vlIDTdU/pruSXUELKoA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=CPriVpEy; 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="CPriVpEy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D7767C3277B; Tue, 9 Jul 2024 11:23:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1720524187; bh=9/K02CPb7CaRglUCVXTCkAoz9MmF/35+zu2wzucCq6k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CPriVpEyvF1Lr0H5NqAT00Q9mvATQgeiSDje6U5BhAKZagINUz2uMB3eDgGi62tMi 63At9T2Cw7eaCWhWAvaA6RWv4l0e96o4DqLzS9jb8lKpIPJd+jTeGibeCtdG6z78Di QXotiWXLhGiAnPLpNBk/lOZ759X4XQK34VTO2Kwg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chao Yu , Jaegeuk Kim , Sasha Levin Subject: [PATCH 6.9 068/197] f2fs: check validation of fault attrs in f2fs_build_fault_attr() Date: Tue, 9 Jul 2024 13:08:42 +0200 Message-ID: <20240709110711.594211450@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240709110708.903245467@linuxfoundation.org> References: <20240709110708.903245467@linuxfoundation.org> User-Agent: quilt/0.67 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 6.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chao Yu [ Upstream commit 4ed886b187f47447ad559619c48c086f432d2b77 ] - It missed to check validation of fault attrs in parse_options(), let's fix to add check condition in f2fs_build_fault_attr(). - Use f2fs_build_fault_attr() in __sbi_store() to clean up code. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim Signed-off-by: Sasha Levin --- fs/f2fs/f2fs.h | 12 ++++++++---- fs/f2fs/super.c | 27 ++++++++++++++++++++------- fs/f2fs/sysfs.c | 14 ++++++++++---- 3 files changed, 38 insertions(+), 15 deletions(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 07b3675ea1694..f5adb9942c4c4 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -72,7 +72,7 @@ enum { struct f2fs_fault_info { atomic_t inject_ops; - unsigned int inject_rate; + int inject_rate; unsigned int inject_type; }; @@ -4597,10 +4597,14 @@ static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx) } #ifdef CONFIG_F2FS_FAULT_INJECTION -extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, - unsigned int type); +extern int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned long rate, + unsigned long type); #else -#define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) +static int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned long rate, + unsigned long type) +{ + return 0; +} #endif static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 2f75a7dfc311d..0c3ebe4d9026d 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -66,21 +66,31 @@ const char *f2fs_fault_name[FAULT_MAX] = { [FAULT_NO_SEGMENT] = "no free segment", }; -void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, - unsigned int type) +int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned long rate, + unsigned long type) { struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; if (rate) { + if (rate > INT_MAX) + return -EINVAL; atomic_set(&ffi->inject_ops, 0); - ffi->inject_rate = rate; + ffi->inject_rate = (int)rate; } - if (type) - ffi->inject_type = type; + if (type) { + if (type >= BIT(FAULT_MAX)) + return -EINVAL; + ffi->inject_type = (unsigned int)type; + } if (!rate && !type) memset(ffi, 0, sizeof(struct f2fs_fault_info)); + else + f2fs_info(sbi, + "build fault injection attr: rate: %lu, type: 0x%lx", + rate, type); + return 0; } #endif @@ -886,14 +896,17 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) case Opt_fault_injection: if (args->from && match_int(args, &arg)) return -EINVAL; - f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE); + if (f2fs_build_fault_attr(sbi, arg, + F2FS_ALL_FAULT_TYPE)) + return -EINVAL; set_opt(sbi, FAULT_INJECTION); break; case Opt_fault_type: if (args->from && match_int(args, &arg)) return -EINVAL; - f2fs_build_fault_attr(sbi, 0, arg); + if (f2fs_build_fault_attr(sbi, 0, arg)) + return -EINVAL; set_opt(sbi, FAULT_INJECTION); break; #else diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index a568ce96cf563..7aa3844e7a808 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -484,10 +484,16 @@ static ssize_t __sbi_store(struct f2fs_attr *a, if (ret < 0) return ret; #ifdef CONFIG_F2FS_FAULT_INJECTION - if (a->struct_type == FAULT_INFO_TYPE && t >= BIT(FAULT_MAX)) - return -EINVAL; - if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX) - return -EINVAL; + if (a->struct_type == FAULT_INFO_TYPE) { + if (f2fs_build_fault_attr(sbi, 0, t)) + return -EINVAL; + return count; + } + if (a->struct_type == FAULT_INFO_RATE) { + if (f2fs_build_fault_attr(sbi, t, 0)) + return -EINVAL; + return count; + } #endif if (a->struct_type == RESERVED_BLOCKS) { spin_lock(&sbi->stat_lock); -- 2.43.0