diff options
Diffstat (limited to 'kernel/module')
| -rw-r--r-- | kernel/module/Kconfig | 5 | ||||
| -rw-r--r-- | kernel/module/main.c | 9 |
2 files changed, 12 insertions, 2 deletions
diff --git a/kernel/module/Kconfig b/kernel/module/Kconfig index 0ea1b2970a..28db5b7589 100644 --- a/kernel/module/Kconfig +++ b/kernel/module/Kconfig @@ -236,6 +236,10 @@ choice possible to load a signed module containing the algorithm to check the signature on that module. +config MODULE_SIG_SHA1 + bool "Sign modules with SHA-1" + select CRYPTO_SHA1 + config MODULE_SIG_SHA256 bool "Sign modules with SHA-256" select CRYPTO_SHA256 @@ -265,6 +269,7 @@ endchoice config MODULE_SIG_HASH string depends on MODULE_SIG || IMA_APPRAISE_MODSIG + default "sha1" if MODULE_SIG_SHA1 default "sha256" if MODULE_SIG_SHA256 default "sha384" if MODULE_SIG_SHA384 default "sha512" if MODULE_SIG_SHA512 diff --git a/kernel/module/main.c b/kernel/module/main.c index 98fedfdb8d..34d9e718c2 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -2486,6 +2486,11 @@ static void do_free_init(struct work_struct *w) } } +void flush_module_init_free_work(void) +{ + flush_work(&init_free_wq); +} + #undef MODULE_PARAM_PREFIX #define MODULE_PARAM_PREFIX "module." /* Default value for module->async_probe_requested */ @@ -2590,8 +2595,8 @@ static noinline int do_init_module(struct module *mod) * Note that module_alloc() on most architectures creates W+X page * mappings which won't be cleaned up until do_free_init() runs. Any * code such as mark_rodata_ro() which depends on those mappings to - * be cleaned up needs to sync with the queued work - ie - * rcu_barrier() + * be cleaned up needs to sync with the queued work by invoking + * flush_module_init_free_work(). */ if (llist_add(&freeinit->node, &init_free_list)) schedule_work(&init_free_wq); |