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| author | Matthias Clasen <mclasen@redhat.com> | 2020-10-15 15:16:06 -0400 |
|---|---|---|
| committer | Matthias Clasen <mclasen@redhat.com> | 2020-10-15 16:32:55 -0400 |
| commit | 4e04c396095b7e4b70f0635ded6241a61a62ada8 (patch) | |
| tree | 3d1e7307a47d1f3c221eadeeac278ae1fc3f6899 | |
| parent | 0bd5a96d71562c4820cf74fdc05ce5c891936bad (diff) | |
| download | gtk+-4e04c396095b7e4b70f0635ded6241a61a62ada8.tar.gz | |
emojicompletion: Avoid a memory overrun
Don't read beyond the beginning of the string.
Fixes: #3245
| -rw-r--r-- | gtk/gtkemojicompletion.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gtk/gtkemojicompletion.c b/gtk/gtkemojicompletion.c index 712418850a..31669c85d5 100644 --- a/gtk/gtkemojicompletion.c +++ b/gtk/gtkemojicompletion.c @@ -115,7 +115,8 @@ next: break; } } - while (g_unichar_isalnum (g_utf8_get_char (p)) || *p == '_' || *p == ' '); + while (p > text && + (g_unichar_isalnum (g_utf8_get_char (p)) || *p == '_' || *p == ' ')); if (found_candidate) n_matches = populate_completion (completion, p, 0); |