diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/module.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/kernel/module.c b/kernel/module.c index 2584c0e2762..f5e9491ef7a 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -957,11 +957,14 @@ static inline int check_modstruct_version(Elf_Shdr *sechdrs, return check_version(sechdrs, versindex, "struct_module", mod, crc); } -/* First part is kernel version, which we ignore. */ -static inline int same_magic(const char *amagic, const char *bmagic) +/* First part is kernel version, which we ignore if module has crcs. */ +static inline int same_magic(const char *amagic, const char *bmagic, + bool has_crcs) { - amagic += strcspn(amagic, " "); - bmagic += strcspn(bmagic, " "); + if (has_crcs) { + amagic += strcspn(amagic, " "); + bmagic += strcspn(bmagic, " "); + } return strcmp(amagic, bmagic) == 0; } #else @@ -981,7 +984,8 @@ static inline int check_modstruct_version(Elf_Shdr *sechdrs, return 1; } -static inline int same_magic(const char *amagic, const char *bmagic) +static inline int same_magic(const char *amagic, const char *bmagic, + bool has_crcs) { return strcmp(amagic, bmagic) == 0; } @@ -1874,7 +1878,7 @@ static struct module *load_module(void __user *umod, err = try_to_force_load(mod, "magic"); if (err) goto free_hdr; - } else if (!same_magic(modmagic, vermagic)) { + } else if (!same_magic(modmagic, vermagic, versindex)) { printk(KERN_ERR "%s: version magic '%s' should be '%s'\n", mod->name, modmagic, vermagic); err = -ENOEXEC; |