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https://gitlab.com/libvirt/libvirt.git
synced 2025-03-07 17:28:15 +00:00
virt-aa-helper: Remove PATH_MAX sized stack allocations
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parent
859efe7f88
commit
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@ -188,8 +188,9 @@ replace_string(char *orig, const size_t len, const char *oldstr,
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static int
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parserCommand(const char *profile_name, const char cmd)
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{
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int result = -1;
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char flag[3];
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char profile[PATH_MAX];
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char *profile;
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int status;
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int ret;
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@ -200,15 +201,15 @@ parserCommand(const char *profile_name, const char cmd)
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snprintf(flag, 3, "-%c", cmd);
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if (snprintf(profile, PATH_MAX, "%s/%s",
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APPARMOR_DIR "/libvirt", profile_name) > PATH_MAX - 1) {
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if (virAsprintf(&profile, "%s/%s",
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APPARMOR_DIR "/libvirt", profile_name) < 0) {
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vah_error(NULL, 0, _("profile name exceeds maximum length"));
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return -1;
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}
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if (!virFileExists(profile)) {
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vah_error(NULL, 0, _("profile does not exist"));
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return -1;
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goto cleanup;
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} else {
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const char * const argv[] = {
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"/sbin/apparmor_parser", flag, profile, NULL
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@ -217,18 +218,23 @@ parserCommand(const char *profile_name, const char cmd)
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(WIFEXITED(status) && WEXITSTATUS(status) != 0)) {
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if (ret != 0) {
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vah_error(NULL, 0, _("failed to run apparmor_parser"));
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return -1;
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goto cleanup;
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} else if (cmd == 'R' && WIFEXITED(status) &&
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WEXITSTATUS(status) == 234) {
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vah_warning(_("unable to unload already unloaded profile"));
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} else {
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vah_error(NULL, 0, _("apparmor_parser exited with error"));
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return -1;
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goto cleanup;
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}
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}
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}
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return 0;
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result = 0;
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cleanup:
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VIR_FREE(profile);
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return result;
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}
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/*
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@ -308,7 +314,7 @@ static int
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create_profile(const char *profile, const char *profile_name,
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const char *profile_files)
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{
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char template[PATH_MAX];
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char *template;
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char *tcontent = NULL;
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char *pcontent = NULL;
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char *replace_name = NULL;
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@ -324,8 +330,7 @@ create_profile(const char *profile, const char *profile_name,
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goto end;
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}
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if (snprintf(template, PATH_MAX, "%s/TEMPLATE",
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APPARMOR_DIR "/libvirt") > PATH_MAX - 1) {
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if (virAsprintf(&template, "%s/TEMPLATE", APPARMOR_DIR "/libvirt") < 0) {
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vah_error(NULL, 0, _("template name exceeds maximum length"));
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goto end;
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}
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@ -409,6 +414,7 @@ create_profile(const char *profile, const char *profile_name,
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clean_tcontent:
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VIR_FREE(tcontent);
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end:
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VIR_FREE(template);
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return rc;
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}
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@ -1134,8 +1140,8 @@ main(int argc, char **argv)
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vahControl _ctl, *ctl = &_ctl;
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virBuffer buf = VIR_BUFFER_INITIALIZER;
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int rc = -1;
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char profile[PATH_MAX];
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char include_file[PATH_MAX];
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char *profile = NULL;
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char *include_file = NULL;
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if (setlocale(LC_ALL, "") == NULL ||
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bindtextdomain(PACKAGE, LOCALEDIR) == NULL ||
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@ -1164,13 +1170,13 @@ main(int argc, char **argv)
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if (vahParseArgv(ctl, argc, argv) != 0)
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vah_error(ctl, 1, _("could not parse arguments"));
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if (snprintf(profile, PATH_MAX, "%s/%s",
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APPARMOR_DIR "/libvirt", ctl->uuid) > PATH_MAX - 1)
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vah_error(ctl, 1, _("profile name exceeds maximum length"));
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if (virAsprintf(&profile, "%s/%s",
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APPARMOR_DIR "/libvirt", ctl->uuid) < 0)
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vah_error(ctl, 0, _("could not allocate memory"));
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if (snprintf(include_file, PATH_MAX, "%s/%s.files",
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APPARMOR_DIR "/libvirt", ctl->uuid) > PATH_MAX - 1)
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vah_error(ctl, 1, _("disk profile name exceeds maximum length"));
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if (virAsprintf(&include_file, "%s/%s.files",
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APPARMOR_DIR "/libvirt", ctl->uuid) < 0)
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vah_error(ctl, 0, _("could not allocate memory"));
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if (ctl->cmd == 'a')
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rc = parserLoad(ctl->uuid);
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@ -1258,5 +1264,9 @@ main(int argc, char **argv)
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}
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vahDeinit(ctl);
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VIR_FREE(profile);
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VIR_FREE(include_file);
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exit(rc == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
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}
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