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vim-patch:8.1.0325: strings in swap file may not be NUL terminated

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Problem:    Strings in swap file may not be NUL terminated. (Coverity)
Solution:   Limit the length of the used string.
7c60505e10
This commit is contained in:
Justin M. Keyes 2019-04-29 21:12:42 +02:00
parent 3a92040b44
commit 035a41c218
1 changed files with 8 additions and 4 deletions
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12
src/nvim/memline.c
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@ -1472,10 +1472,14 @@ void get_b0_dict(const char *fname, dict_T *d)
tv_dict_add_str(d, S_LEN("error"), xstrdup("Magic number mismatch"));
} else {
// We have swap information.
tv_dict_add_str(d, S_LEN("version"), xstrdup((char *)b0.b0_version));
tv_dict_add_str(d, S_LEN("user"), xstrdup((char *)b0.b0_uname));
tv_dict_add_str(d, S_LEN("host"), xstrdup((char *)b0.b0_hname));
tv_dict_add_str(d, S_LEN("fname"), xstrdup((char *)b0.b0_fname));
tv_dict_add_str(d, S_LEN("version"),
xstrndup((char *)b0.b0_version, 10));
tv_dict_add_str(d, S_LEN("user"),
xstrndup((char *)b0.b0_uname, B0_UNAME_SIZE));
tv_dict_add_str(d, S_LEN("host"),
xstrndup((char *)b0.b0_hname, B0_HNAME_SIZE));
tv_dict_add_str(d, S_LEN("fname"),
xstrndup((char *)b0.b0_fname, B0_FNAME_SIZE_ORG));
tv_dict_add_nr(d, S_LEN("pid"), char_to_long(b0.b0_pid));
tv_dict_add_nr(d, S_LEN("mtime"), char_to_long(b0.b0_mtime));