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| author | Chen Gang <gang.chen@asianux.com> | 2013-02-25 16:51:49 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-03-05 16:56:27 +1100 |
| commit | 6b6680c4ea3952af8ae76915cbca41245147741b (patch) | |
| tree | 3863f55ebb6a7f1c49830337c7a8aa52443c54a8 /arch | |
| parent | 27777890d0fae55d14ef18791fc7994faf1bc867 (diff) | |
| download | linux-3.10-6b6680c4ea3952af8ae76915cbca41245147741b.tar.gz linux-3.10-6b6680c4ea3952af8ae76915cbca41245147741b.tar.bz2 linux-3.10-6b6680c4ea3952af8ae76915cbca41245147741b.zip | |
powerpc/pseries/hvcserver: Fix strncpy buffer limit in location code
the dest buf len is 80 (HVCS_CLC_LENGTH + 1).
the src buf len is PAGE_SIZE.
if src buf string len is more than 80, it will cause issue.
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/pseries/hvcserver.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/pseries/hvcserver.c b/arch/powerpc/platforms/pseries/hvcserver.c index fcf4b4cbeaf..4557e91626c 100644 --- a/arch/powerpc/platforms/pseries/hvcserver.c +++ b/arch/powerpc/platforms/pseries/hvcserver.c @@ -23,6 +23,7 @@ #include <linux/list.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/string.h> #include <asm/hvcall.h> #include <asm/hvcserver.h> @@ -188,9 +189,9 @@ int hvcs_get_partner_info(uint32_t unit_address, struct list_head *head, = (unsigned int)last_p_partition_ID; /* copy the Null-term char too */ - strncpy(&next_partner_info->location_code[0], + strlcpy(&next_partner_info->location_code[0], (char *)&pi_buff[2], - strlen((char *)&pi_buff[2]) + 1); + sizeof(next_partner_info->location_code)); list_add_tail(&(next_partner_info->node), head); next_partner_info = NULL; |