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| author | Ingo Schwarze <schwarze@openbsd.org> | 2018-08-01 13:46:15 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@openbsd.org> | 2018-08-01 13:46:15 +0000 |
| commit | 160e978ed219fefc76edebd7f7d3ed55ed7e74fd (patch) | |
| tree | 54ca67df1335486e9ccfb09fce8285d90d843c8b /mdoc_validate.c | |
| parent | f5da3327ebbc63db1b7c9b2660235b22740f301b (diff) | |
| download | mandoc-160e978ed219fefc76edebd7f7d3ed55ed7e74fd.tar.gz | |
Avoid a read access one byte beyond the end of an allocated string
which occurred in situations like ".Fl a Cm --"; found by
Leah Neukirchen <leah at vuxu dot org> with valgrind on Void Linux.
Diffstat (limited to 'mdoc_validate.c')
| -rw-r--r-- | mdoc_validate.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mdoc_validate.c b/mdoc_validate.c index 05d78391..5ab5f3ae 100644 --- a/mdoc_validate.c +++ b/mdoc_validate.c @@ -440,7 +440,7 @@ check_text_em(struct roff_man *mdoc, int ln, int pos, char *p) np->string != '\0' && isalpha((unsigned char)np->string[ strlen(np->string) - 1])) || - (cp[2] != '\0' ? + (cp[1] != '\0' && cp[2] != '\0' ? isalpha((unsigned char)cp[2]) : nn != NULL && nn->type == ROFFT_TEXT && |