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| author | Borislav Petkov <borislav.petkov@amd.com> | 2011-02-22 18:41:48 +0100 |
|---|---|---|
| committer | Borislav Petkov <borislav.petkov@amd.com> | 2011-06-15 15:13:49 +0200 |
| commit | 86b445676d13f520ef9ab7aebe933aa6684ce84c (patch) | |
| tree | 2ddc317f83becf24330065bf0b3468a2b6bee2e7 /arch/x86 | |
| parent | 2c53b436a30867eb6b47dd7bab23ba638d1fb0d2 (diff) | |
| download | op-kernel-dev-86b445676d13f520ef9ab7aebe933aa6684ce84c.zip op-kernel-dev-86b445676d13f520ef9ab7aebe933aa6684ce84c.tar.gz | |
x86, microcode, AMD: Correct buf references
Both the equivalence table and the microcode patch types are u32. Access
them properly through the buf-ptr.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/microcode_amd.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index c561038..d30d67c 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -157,7 +157,7 @@ static int apply_microcode_amd(int cpu) static unsigned int verify_ucode_size(int cpu, const u8 *buf, unsigned int size) { struct cpuinfo_x86 *c = &cpu_data(cpu); - unsigned int max_size, actual_size; + u32 max_size, actual_size; #define F1XH_MPB_MAX_SIZE 2048 #define F14H_MPB_MAX_SIZE 1824 @@ -175,7 +175,7 @@ static unsigned int verify_ucode_size(int cpu, const u8 *buf, unsigned int size) break; } - actual_size = buf[4] + (buf[5] << 8); + actual_size = *(u32 *)(buf + 4); if (actual_size > size || actual_size > max_size) { pr_err("section size mismatch\n"); @@ -191,7 +191,7 @@ get_next_ucode(int cpu, const u8 *buf, unsigned int size, unsigned int *mc_size) struct microcode_header_amd *mc = NULL; unsigned int actual_size = 0; - if (buf[0] != UCODE_UCODE_TYPE) { + if (*(u32 *)buf != UCODE_UCODE_TYPE) { pr_err("invalid type field in container file section header\n"); goto out; } |
