diff options
Diffstat (limited to 'meta-security/recipes-security/samhain/files/samhain-mips64-aarch64-dnmalloc-hash-fix.patch')
-rw-r--r-- | meta-security/recipes-security/samhain/files/samhain-mips64-aarch64-dnmalloc-hash-fix.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/meta-security/recipes-security/samhain/files/samhain-mips64-aarch64-dnmalloc-hash-fix.patch b/meta-security/recipes-security/samhain/files/samhain-mips64-aarch64-dnmalloc-hash-fix.patch new file mode 100644 index 0000000000..0608660689 --- /dev/null +++ b/meta-security/recipes-security/samhain/files/samhain-mips64-aarch64-dnmalloc-hash-fix.patch @@ -0,0 +1,44 @@ +commit 0f6bdc219e598de08a3f37887efa5dfa50e2b996 +Author: Aws Ismail <aws.ismail@windriver.com> +Date: Fri Jun 22 15:47:08 2012 -0400 + +Hash fix for MIPS64 and AARCH64 + +Samhain uses the addresses of local variables in generating hash +values. The hashing function is designed only for 32-bit values. +For MIPS64 when a 64-bit address is passed in the resulting hash +exceeds the limits of the underlying mechanism and samhain +ultimately fails. The solution is to simply take the lower +32-bits of the address and use that in generating hash values. + +Signed-off-by: Greg Moffatt <greg.moffatt@windriver.com> + +Upstream-Status: Pending + +Signed-off-by: Aws Ismail <aws.ismail@windriver.com> +Signed-off-by: Jackie Huang <jackie.huang@windriver.com> + +diff --git a/src/dnmalloc.c b/src/dnmalloc.c +index da9a5c5..fc91400 100644 +--- a/src/dnmalloc.c ++++ b/src/dnmalloc.c +@@ -2703,11 +2703,19 @@ static void freecilst_add(chunkinfoptr p) { + } + + /* Calculate the hash table entry for a chunk */ ++#if defined(CONFIG_ARCH_MIPS64) || defined(CONFIG_ARCH_AARCH64) ++#ifdef STARTHEAP_IS_ZERO ++#define hash(p) ((((unsigned long) p) & 0x7fffffff) >> 7) ++#else ++#define hash(p) ((((unsigned long) p - (unsigned long) startheap) & 0x7fffffff) >> 7) ++#endif ++#else + #ifdef STARTHEAP_IS_ZERO + #define hash(p) (((unsigned long) p) >> 7) + #else + #define hash(p) (((unsigned long) p - (unsigned long) startheap) >> 7) + #endif ++#endif /* CONFIG_ARCH_MIPS64 */ + + static void + hashtable_add (chunkinfoptr ci) |