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elf-util: executable argument for parse_elf() may be NULL

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Fixes assertion triggered by parse_package_metadata() and json_build().
This commit is contained in:
Yu Watanabe 2022-01-04 01:55:03 +09:00
parent 3876cfafd0
commit d090049c01
1 changed files with 5 additions and 3 deletions
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8
src/shared/elf-util.c
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@ -388,6 +388,7 @@ static int parse_buildid(Dwfl_Module *mod, Elf *elf, const char *name, StackCont
int r;
assert(mod || elf);
assert(name);
assert(c);
if (mod)
@ -614,19 +615,20 @@ static int parse_elf(int fd, const char *executable, char **ret, JsonVariant **r
elf_type = "coredump";
} else {
_cleanup_(json_variant_unrefp) JsonVariant *id_json = NULL;
const char *e = executable ?: "(unnamed)";
bool interpreter_found = false;
r = parse_buildid(NULL, c.elf, executable, &c, &id_json);
r = parse_buildid(NULL, c.elf, e, &c, &id_json);
if (r < 0)
return log_warning_errno(r, "Failed to parse build-id of ELF file: %m");
r = parse_package_metadata(executable, id_json, c.elf, &interpreter_found, &c);
r = parse_package_metadata(e, id_json, c.elf, &interpreter_found, &c);
if (r < 0)
return log_warning_errno(r, "Failed to parse package metadata of ELF file: %m");
/* If we found a build-id and nothing else, return at least that. */
if (!package_metadata && id_json) {
r = json_build(&package_metadata, JSON_BUILD_OBJECT(JSON_BUILD_PAIR(executable, JSON_BUILD_VARIANT(id_json))));
r = json_build(&package_metadata, JSON_BUILD_OBJECT(JSON_BUILD_PAIR(e, JSON_BUILD_VARIANT(id_json))));
if (r < 0)
return log_warning_errno(r, "Failed to build JSON object: %m");
}