26 lines
905 B
Diff
26 lines
905 B
Diff
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commit deea6ab1bcb2696be514e579f3263c234ecc1683
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Author: Martin Sebor <msebor@redhat.com>
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Date: Tue Jan 25 17:39:02 2022 -0700
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io: Fix use-after-free in ftw [BZ #26779]
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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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(cherry picked from commit ee52ab25ba875f458981fce22c54e3c04c7a17d3)
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diff --git a/io/ftw.c b/io/ftw.c
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index cf08d9f101657df0..91a4e8e6de151ca1 100644
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--- a/io/ftw.c
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+++ b/io/ftw.c
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@@ -324,8 +324,9 @@ open_dir_stream (int *dfdp, struct ftw_data *data, struct dir_data *dirp)
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buf[actsize++] = '\0';
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/* Shrink the buffer to what we actually need. */
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- data->dirstreams[data->actdir]->content = realloc (buf, actsize);
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- if (data->dirstreams[data->actdir]->content == NULL)
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+ void *content = realloc (buf, actsize);
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+ data->dirstreams[data->actdir]->content = content;
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+ if (content == NULL)
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{
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int save_err = errno;
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free (buf);
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