* [PATCH] ARM:plat-s3c24xx: for memcpy, reading more things out of boundary
@ 2013-01-24 5:27 Chen Gang
2013-02-17 3:57 ` Chen Gang
0 siblings, 1 reply; 2+ messages in thread
From: Chen Gang @ 2013-01-24 5:27 UTC (permalink / raw)
To: linux-arm-kernel
the size is made by "plls_no + 1".
so when copy from original buffer, need dec 1, or reading out of boundary.
additional info:
plls_no is ARRARY_SIZE(plls).
Signed-off-by: Chen Gang <gang.chen@asianux•com>
---
arch/arm/plat-s3c24xx/cpu-freq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/plat-s3c24xx/cpu-freq.c b/arch/arm/plat-s3c24xx/cpu-freq.c
index 4680799..df093b2 100644
--- a/arch/arm/plat-s3c24xx/cpu-freq.c
+++ b/arch/arm/plat-s3c24xx/cpu-freq.c
@@ -700,7 +700,8 @@ int __init s3c_plltab_register(struct cpufreq_frequency_table *plls,
vals = kmalloc(size, GFP_KERNEL);
if (vals) {
- memcpy(vals, plls, size);
+ memcpy(vals, plls,
+ size - sizeof(struct cpufreq_frequency_table));
pll_reg = vals;
/* write a terminating entry, we don't store it in the
--
1.7.10.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] ARM:plat-s3c24xx: for memcpy, reading more things out of boundary
2013-01-24 5:27 [PATCH] ARM:plat-s3c24xx: for memcpy, reading more things out of boundary Chen Gang
@ 2013-02-17 3:57 ` Chen Gang
0 siblings, 0 replies; 2+ messages in thread
From: Chen Gang @ 2013-02-17 3:57 UTC (permalink / raw)
To: linux-arm-kernel
Hello relative members:
please give a glance for this patch, when you have time.
thanks.
:-)
gchen.
? 2013?01?24? 13:27, Chen Gang ??:
>
> the size is made by "plls_no + 1".
> so when copy from original buffer, need dec 1, or reading out of boundary.
>
> additional info:
> plls_no is ARRARY_SIZE(plls).
>
>
> Signed-off-by: Chen Gang <gang.chen@asianux•com>
> ---
> arch/arm/plat-s3c24xx/cpu-freq.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/plat-s3c24xx/cpu-freq.c b/arch/arm/plat-s3c24xx/cpu-freq.c
> index 4680799..df093b2 100644
> --- a/arch/arm/plat-s3c24xx/cpu-freq.c
> +++ b/arch/arm/plat-s3c24xx/cpu-freq.c
> @@ -700,7 +700,8 @@ int __init s3c_plltab_register(struct cpufreq_frequency_table *plls,
>
> vals = kmalloc(size, GFP_KERNEL);
> if (vals) {
> - memcpy(vals, plls, size);
> + memcpy(vals, plls,
> + size - sizeof(struct cpufreq_frequency_table));
> pll_reg = vals;
>
> /* write a terminating entry, we don't store it in the
>
--
Chen Gang
Asianux Corporation
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