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libctf: fix use-after-free in function dumping

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This is actually a free-before-initializing (i.e. a free of garbage).

libctf/
	* ctf-dump.c (ctf_dump_funcs): Free in the right place.
This commit is contained in:
Nick Alcock
2019-06-03 20:26:02 +01:00
parent a610aa4f9c
commit 941accce38
2 changed files with 5 additions and 1 deletions
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4
libctf/ChangeLog
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@ -1,3 +1,7 @@
2019-06-03 Nick Alcock <nick.alcock@oracle.com>
* ctf-dump.c (ctf_dump_funcs): Free in the right place.
2019-05-29 Nick Alcock <nick.alcock@oracle.com> 2019-05-29 Nick Alcock <nick.alcock@oracle.com>
* Makefile.am (ZLIB): New. * Makefile.am (ZLIB): New.

2
libctf/ctf-dump.c
View File

@ -273,7 +273,6 @@ ctf_dump_funcs (ctf_file_t *fp, ctf_dump_state_t *state)
goto err; goto err;
str = ctf_str_append (str, " "); str = ctf_str_append (str, " ");
free (bit);
/* Function name. */ /* Function name. */
@ -290,6 +289,7 @@ ctf_dump_funcs (ctf_file_t *fp, ctf_dump_state_t *state)
} }
str = ctf_str_append (str, bit); str = ctf_str_append (str, bit);
str = ctf_str_append (str, " ("); str = ctf_str_append (str, " (");
free (bit);
/* Function arguments. */ /* Function arguments. */