26 lines
851 B
Diff
26 lines
851 B
Diff
From b943adc496451975a9b959d78c0859a7fea5e483 Mon Sep 17 00:00:00 2001
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From: Richard Hughes <richard@hughsie.com>
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Date: Sun, 7 Feb 2021 16:55:02 +0000
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Subject: [PATCH 08/11] wacom-usb: Fix a crash detected by AddressSanitizer
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---
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plugins/wacom-usb/fu-wac-firmware.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git plugins/wacom-usb/fu-wac-firmware.c plugins/wacom-usb/fu-wac-firmware.c
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index fc54cf10..d3a41682 100644
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--- plugins/wacom-usb/fu-wac-firmware.c
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+++ plugins/wacom-usb/fu-wac-firmware.c
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@@ -44,7 +44,7 @@ fu_wac_firmware_parse (FuFirmware *firmware,
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/* check the prefix (BE) */
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data = (guint8 *) g_bytes_get_data (fw, &len);
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- if (memcmp (data, "WACOM", 5) != 0) {
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+ if (len < 5 || memcmp (data, "WACOM", 5) != 0) {
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g_set_error_literal (error,
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FWUPD_ERROR,
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FWUPD_ERROR_INTERNAL,
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--
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2.29.2
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