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author | root <root@rshg054.dnsready.net> | 2012-03-05 00:01:22 +0000 |
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committer | root <root@rshg054.dnsready.net> | 2012-03-05 00:01:22 +0000 |
commit | 11711de1942a141f28faef695c4c78c8357fbf23 (patch) | |
tree | 363a8b5d445b8eb1dcee4263b5f06d2fe307678f /core/glibc/glibc-2.15-__libc_res_nquerydomain-out-of-bounds.patch | |
parent | f0fa42126da9e3eec6b98388b35c67929fa20dae (diff) |
Mon Mar 5 00:01:22 UTC 2012
Diffstat (limited to 'core/glibc/glibc-2.15-__libc_res_nquerydomain-out-of-bounds.patch')
-rw-r--r-- | core/glibc/glibc-2.15-__libc_res_nquerydomain-out-of-bounds.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/core/glibc/glibc-2.15-__libc_res_nquerydomain-out-of-bounds.patch b/core/glibc/glibc-2.15-__libc_res_nquerydomain-out-of-bounds.patch new file mode 100644 index 000000000..6f0a0398f --- /dev/null +++ b/core/glibc/glibc-2.15-__libc_res_nquerydomain-out-of-bounds.patch @@ -0,0 +1,24 @@ +diff --git a/resolv/res_query.c b/resolv/res_query.c +index 947c651..abccd4a 100644 +--- a/resolv/res_query.c ++++ b/resolv/res_query.c +@@ -556,12 +556,16 @@ __libc_res_nquerydomain(res_state statp, + * copy without '.' if present. + */ + n = strlen(name); +- if (n >= MAXDNAME) { ++ ++ /* Decrement N prior to checking it against MAXDNAME ++ so that we detect a wrap to SIZE_MAX and return ++ a reasonable error. */ ++ n--; ++ if (n >= MAXDNAME - 1) { + RES_SET_H_ERRNO(statp, NO_RECOVERY); + return (-1); + } +- n--; +- if (n >= 0 && name[n] == '.') { ++ if (name[n] == '.') { + strncpy(nbuf, name, n); + nbuf[n] = '\0'; + } else |