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| author | Doug Zongker <dougz@google.com> | 2014-05-13 17:40:49 +0200 |
|---|---|---|
| committer | Doug Zongker <dougz@google.com> | 2014-05-13 17:40:49 +0200 |
| commit | 4aa12dd0decafb139239779ab38e6ffda23109ab (patch) | |
| tree | 53ae20bf4f591492bc8eae4df55223434052ad8d | |
| parent | Merge "recovery: minui: add adf backend" (diff) | |
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| -rw-r--r-- | applypatch/bspatch.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/applypatch/bspatch.c b/applypatch/bspatch.c index 2e80f81d0..1dc7ab10b 100644 --- a/applypatch/bspatch.c +++ b/applypatch/bspatch.c @@ -205,6 +205,11 @@ int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size, ctrl[1] = offtin(buf+8); ctrl[2] = offtin(buf+16); + if (ctrl[0] < 0 || ctrl[1] < 0) { + printf("corrupt patch (negative byte counts)\n"); + return 1; + } + // Sanity check if (newpos + ctrl[0] > *new_size) { printf("corrupt patch (new file overrun)\n"); |