diff options
| -rw-r--r-- | apply.c | 1 | ||||
| -rwxr-xr-x | t/t4103-apply-binary.sh | 23 |
2 files changed, 24 insertions, 0 deletions
@@ -1917,6 +1917,7 @@ static struct fragment *parse_binary_hunk(struct apply_state *state, state->linenr++; buffer += llen; + size -= llen; while (1) { int byte_length, max_byte_length, newsize; llen = linelen(buffer, size); diff --git a/t/t4103-apply-binary.sh b/t/t4103-apply-binary.sh index fad6d3f542..d370ecfe0d 100755 --- a/t/t4103-apply-binary.sh +++ b/t/t4103-apply-binary.sh @@ -158,4 +158,27 @@ test_expect_success 'apply binary -p0 diff' ' test -z "$(git diff --name-status binary -- file3)" ' +test_expect_success 'reject truncated binary diff' ' + do_reset && + + # this length is calculated to get us very close to + # the 8192-byte strbuf we will use to read in the patch. + test-tool genrandom foo 6205 >file1 && + git diff --binary >patch && + + # truncate the patch at the second "literal" line, + # but exclude the trailing newline. We must use perl + # for this, since tools like "sed" cannot reliably + # produce output without the trailing newline. + perl -pe " + if (/^literal/ && \$count++ >= 1) { + chomp; + print; + exit 0; + } + " <patch >patch.trunc && + + do_reset && + test_must_fail git apply patch.trunc +' test_done |