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| author | Russell Belfer <rb@github.com> | 2013-05-15 14:50:05 -0700 |
|---|---|---|
| committer | Russell Belfer <rb@github.com> | 2013-05-15 14:50:05 -0700 |
| commit | 79ef3be449c9d81dd0b37a30999563aa92e4679e (patch) | |
| tree | 5e4e5d47c1fe3823d4fd2b1c794effcc3263b608 /src/diff.c | |
| parent | f0ab73720a4e7a9b37c901a27519ea65eafeb8a6 (diff) | |
| download | libgit2-79ef3be449c9d81dd0b37a30999563aa92e4679e.tar.gz | |
Fix diff crash when last item is untracked dir
When the last item in a diff was an untracked directory that only
contained ignored items, the loop to scan the contents would run
off the end of the iterator and dereference a NULL pointer. This
includes a test that reproduces the problem and a fix.
Diffstat (limited to 'src/diff.c')
| -rw-r--r-- | src/diff.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/diff.c b/src/diff.c index f466546bb..d93506984 100644 --- a/src/diff.c +++ b/src/diff.c @@ -747,7 +747,8 @@ static int diff_scan_inside_untracked_dir( } /* look for actual untracked file */ - while (!diff->pfxcomp(info->nitem->path, git_buf_cstr(&base))) { + while (info->nitem != NULL && + !diff->pfxcomp(info->nitem->path, git_buf_cstr(&base))) { is_ignored = git_iterator_current_is_ignored(info->new_iter); /* need to recurse into non-ignored directories */ @@ -769,7 +770,8 @@ static int diff_scan_inside_untracked_dir( } /* finish off scan */ - while (!diff->pfxcomp(info->nitem->path, git_buf_cstr(&base))) { + while (info->nitem != NULL && + !diff->pfxcomp(info->nitem->path, git_buf_cstr(&base))) { if ((error = git_iterator_advance(&info->nitem, info->new_iter)) < 0) break; } |