| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 04/74] module: avoid *goto*s in module_sig_check() | Date | Mon, 5 Apr 2021 10:53:28 +0200 |
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From: Sergey Shtylyov <s.shtylyov@omprussia.ru>
[ Upstream commit 10ccd1abb808599a6dc7c9389560016ea3568085 ]
Let's move the common handling of the non-fatal errors after the *switch* statement -- this avoids *goto*s inside that *switch*...
Suggested-by: Joe Perches <joe@perches.com> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru> Signed-off-by: Jessica Yu <jeyu@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- kernel/module.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/kernel/module.c b/kernel/module.c index 9fe3e9b85348..8d1def62a415 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2909,20 +2909,13 @@ static int module_sig_check(struct load_info *info, int flags) */ case -ENODATA: reason = "unsigned module"; - goto decide; + break; case -ENOPKG: reason = "module with unsupported crypto"; - goto decide; + break; case -ENOKEY: reason = "module with unavailable key"; - decide: - if (is_module_sig_enforced()) { - pr_notice("%s: loading of %s is rejected\n", - info->name, reason); - return -EKEYREJECTED; - } - - return security_locked_down(LOCKDOWN_MODULE_SIGNATURE); + break; /* All other errors are fatal, including nomem, unparseable * signatures and signature check failures - even if signatures @@ -2931,6 +2924,13 @@ static int module_sig_check(struct load_info *info, int flags) default: return err; } + + if (is_module_sig_enforced()) { + pr_notice("%s: loading of %s is rejected\n", info->name, reason); + return -EKEYREJECTED; + } + + return security_locked_down(LOCKDOWN_MODULE_SIGNATURE); } #else /* !CONFIG_MODULE_SIG */ static int module_sig_check(struct load_info *info, int flags) -- 2.30.1
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