wiretap: Fix an underflow in pcapng.

Make sure account for our rounded option length when we process opt_endofopt. Fixes #17755.
2021-12-01 09:16:45 -08:00 · 2021-12-01 09:16:45 -08:00 · fcf945f747
parent cf0ecc4fe1
commit fcf945f747
1 changed files with 1 additions and 1 deletions
--- a/wiretap/pcapng.c
+++ b/wiretap/pcapng.c
@ -987,7 +987,7 @@ pcapng_process_options(FILE_T fh, wtapng_block_t *wblock,
                    ws_debug("%u bytes after opt_endofopt", opt_bytes_remaining);
                }
                /* padding should be ok here, just get out of this */
-                opt_bytes_remaining = 0;
+                opt_bytes_remaining = rounded_option_length;
                break;
            case(OPT_COMMENT):
                pcapng_process_string_option(wblock, option_code, option_length,