diff options
| author | Alex Shi <alex.shi@linaro.org> | 2016-09-20 10:17:00 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-09-20 10:17:00 +0800 |
| commit | d2d693d1ba7d93ec7c5db8aca2da29a4c91f6782 (patch) | |
| tree | 41920dcc166c491e7192eb1e3ba3861dff479abf /kernel/module.c | |
| parent | 573787341e57a73bf027c2ea3bdf18dc298ae0a0 (diff) | |
| parent | 1d074db69c46d62ce82b331c2080e2fcb710bf4a (diff) | |
Merge remote-tracking branch 'lts/linux-4.4.y' into linux-linaro-lsk-v4.4
Conflicts:
set ARM64_WORKAROUND_CAVIUM_27456 to 12 in
arch/arm64/include/asm/cpufeature.h
and add asm/memory.h in arch/arm64/kernel/entry.S
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/kernel/module.c b/kernel/module.c index 0e5c71195f18..b14a4f31221f 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2606,13 +2606,18 @@ static inline void kmemleak_load_module(const struct module *mod, #endif #ifdef CONFIG_MODULE_SIG -static int module_sig_check(struct load_info *info) +static int module_sig_check(struct load_info *info, int flags) { int err = -ENOKEY; const unsigned long markerlen = sizeof(MODULE_SIG_STRING) - 1; const void *mod = info->hdr; - if (info->len > markerlen && + /* + * Require flags == 0, as a module with version information + * removed is no longer the module that was signed + */ + if (flags == 0 && + info->len > markerlen && memcmp(mod + info->len - markerlen, MODULE_SIG_STRING, markerlen) == 0) { /* We truncate the module to discard the signature */ info->len -= markerlen; @@ -2631,7 +2636,7 @@ static int module_sig_check(struct load_info *info) return err; } #else /* !CONFIG_MODULE_SIG */ -static int module_sig_check(struct load_info *info) +static int module_sig_check(struct load_info *info, int flags) { return 0; } @@ -3444,7 +3449,7 @@ static int load_module(struct load_info *info, const char __user *uargs, long err; char *after_dashes; - err = module_sig_check(info); + err = module_sig_check(info, flags); if (err) goto free_copy; |