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From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
To: linux-efi@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	linux-kernel@vger.kernel.org,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Hans de Goede <hdegoede@redhat.com>,
	Lukas Wunner <lukas@wunner.de>
Subject: [PATCH 9/9] efivars: Call guid_parse() against guid_t type of variable
Date: Fri, 20 Jul 2018 10:47:26 +0900
Message-ID: <20180720014726.24031-10-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <20180720014726.24031-1-ard.biesheuvel@linaro.org>

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

uuid_le_to_bin() is deprecated API and take into consideration that variable,
to where we store parsed data, is type of guid_t we switch to guid_parse()
for sake of consistency.

While here, add error checking to it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 fs/efivarfs/inode.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/efivarfs/inode.c b/fs/efivarfs/inode.c
index 71fccccf317e..8c6ab6c95727 100644
--- a/fs/efivarfs/inode.c
+++ b/fs/efivarfs/inode.c
@@ -86,7 +86,9 @@ static int efivarfs_create(struct inode *dir, struct dentry *dentry,
 	/* length of the variable name itself: remove GUID and separator */
 	namelen = dentry->d_name.len - EFI_VARIABLE_GUID_LEN - 1;
 
-	uuid_le_to_bin(dentry->d_name.name + namelen + 1, &var->var.VendorGuid);
+	err = guid_parse(dentry->d_name.name + namelen + 1, &var->var.VendorGuid);
+	if (err)
+		goto out;
 
 	if (efivar_variable_is_removable(var->var.VendorGuid,
 					 dentry->d_name.name, namelen))
-- 
2.17.1

      parent reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-20  1:47 [GIT PULL 0/9] EFI changes for v4.19 (#2) Ard Biesheuvel
2018-07-20  1:47 ` [PATCH 1/9] efi/x86: prevent reentrant firmware calls in mixed mode Ard Biesheuvel
2018-07-20  1:47 ` [PATCH 2/9] efi/x86: merge setup_efi_pci32 and setup_efi_pci64 routines Ard Biesheuvel
2018-07-20  1:47 ` [PATCH 3/9] efi/x86: align efi_uga_draw_protocol typedef names to convention Ard Biesheuvel
2018-07-20  1:47 ` [PATCH 4/9] efi/x86: merge 32-bit and 64-bit UGA draw protocol setup routines Ard Biesheuvel
2018-07-20  1:47 ` [PATCH 5/9] efi/x86: add missing NULL initialization in UGA draw protocol discovery Ard Biesheuvel
2018-07-20  1:47 ` [PATCH 6/9] efi: Deduplicate efi_open_volume() Ard Biesheuvel
2018-07-20  1:47 ` [PATCH 7/9] efi/x86: replace references to efi_early->is64 with efi_is_64bit() Ard Biesheuvel
2018-07-20  1:47 ` [PATCH 8/9] efi/cper: Use consistent types for UUIDs Ard Biesheuvel
2018-07-20  1:47 ` Ard Biesheuvel [this message]

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