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Commit 1f3aa900 authored by Randy Dunlap's avatar Randy Dunlap Committed by Masahiro Yamada
Browse files

scripts: modpost: check memory allocation results 

Fix missing error check for memory allocation functions in
scripts/mod/modpost.c.

Fixes kernel bugzilla #200319:
https://bugzilla.kernel.org/show_bug.cgi?id=200319



Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Cc: Yuexing Wang <wangyxlandq@gmail.com>
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent f498926c

scripts/mod/modpost.c

+4 −4
Original line number Diff line number Diff line
@@ -672,7 +672,7 @@ static void handle_modversions(struct module *mod, struct elf_info *info, 
			if (ELF_ST_TYPE(sym->st_info) == STT_SPARC_REGISTER)

				break;

			if (symname[0] == '.') {

				char *munged = strdup(symname);

				char *munged = NOFAIL(strdup(symname));

				munged[0] = '_';

				munged[1] = toupper(munged[1]);

				symname = munged;
@@ -1318,7 +1318,7 @@ static Elf_Sym *find_elf_symbol2(struct elf_info *elf, Elf_Addr addr, 
static char *sec2annotation(const char *s)

{

	if (match(s, init_exit_sections)) {

		char *p = malloc(20);

		char *p = NOFAIL(malloc(20));

		char *r = p;



		*p++ = '_';
@@ -1338,7 +1338,7 @@ static char *sec2annotation(const char *s) 
			strcat(p, " ");

		return r;

	} else {

		return strdup("");

		return NOFAIL(strdup(""));

	}

}
@@ -2036,7 +2036,7 @@ void buf_write(struct buffer *buf, const char *s, int len) 
{

	if (buf->size - buf->pos < len) {

		buf->size += len + SZ;

		buf->p = realloc(buf->p, buf->size);

		buf->p = NOFAIL(realloc(buf->p, buf->size));

	}

	strncpy(buf->p + buf->pos, s, len);

	buf->pos += len;