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| author | Tatsuya Kinoshita <tats@debian.org> | 2016-12-07 13:09:06 +0000 |
|---|---|---|
| committer | Tatsuya Kinoshita <tats@debian.org> | 2017-01-06 13:09:18 +0000 |
| commit | da22157aa6c64931e0965507e706b5a1592a9c4c (patch) | |
| tree | 658d42f377003c2fbbf66e1304471e6e8dc35fd8 | |
| parent | Prevent negative values for offset and pos in push_link() (diff) | |
| download | w3m-da22157aa6c64931e0965507e706b5a1592a9c4c.tar.gz w3m-da22157aa6c64931e0965507e706b5a1592a9c4c.zip | |
Prevent heap-use-after-free in HTMLlineproc0()
Bug-Debian: https://github.com/tats/w3m/issues/65
Origin: https://anonscm.debian.org/cgit/collab-maint/w3m.git/commit/?id=26484fc1381e5ec758db950f2bd17f1496220c92
| -rw-r--r-- | file.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -6585,7 +6585,8 @@ HTMLlineproc0(char *line, struct html_feed_environ *h_env, int internal) indent = h_env->envs[h_env->envc].indent; if (obuf->bp.pos - i > indent) { Str line; - append_tags(obuf); + append_tags(obuf); /* may reallocate the buffer */ + bp = obuf->line->ptr + obuf->bp.len; line = Strnew_charp(bp); Strshrink(obuf->line, obuf->line->length - obuf->bp.len); #ifdef FORMAT_NICE |