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| author | Martin Sebor <msebor@redhat.com> | 2022-01-25 17:39:02 -0700 |
|---|---|---|
| committer | Martin Sebor <msebor@redhat.com> | 2022-01-25 17:39:02 -0700 |
| commit | ee52ab25ba875f458981fce22c54e3c04c7a17d3 (patch) | |
| tree | 11e5bf82771d6b903d0385501d55ee7c8a8071b3 /io/ftw.c | |
| parent | 7845064d2d5a50e347ee9f4b78ec5e6316190154 (diff) | |
| download | glibc-ee52ab25ba875f458981fce22c54e3c04c7a17d3.tar.gz glibc-ee52ab25ba875f458981fce22c54e3c04c7a17d3.tar.xz glibc-ee52ab25ba875f458981fce22c54e3c04c7a17d3.zip | |
io: Fix use-after-free in ftw [BZ #26779]
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'io/ftw.c')
| -rw-r--r-- | io/ftw.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/io/ftw.c b/io/ftw.c index 2742541f36..94bd5a93e4 100644 --- a/io/ftw.c +++ b/io/ftw.c @@ -323,8 +323,9 @@ open_dir_stream (int *dfdp, struct ftw_data *data, struct dir_data *dirp) buf[actsize++] = '\0'; /* Shrink the buffer to what we actually need. */ - data->dirstreams[data->actdir]->content = realloc (buf, actsize); - if (data->dirstreams[data->actdir]->content == NULL) + void *content = realloc (buf, actsize); + data->dirstreams[data->actdir]->content = content; + if (content == NULL) { int save_err = errno; free (buf); |