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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-06 09:38:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-06 09:38:07 -0700
commit6f4c98e1c22c28e00b8f050cce895a6b74db15d1 (patch)
treeb00da8b3367c6f3d0f74f44b8c4092a7b7cbbe18 /kernel
parent18a1a7a1d862ae0794a0179473d08a414dd49234 (diff)
parent22c9bcad859d5c969289b3b37084a96c621f8f2c (diff)
downloadlinux-6f4c98e1c22c28e00b8f050cce895a6b74db15d1.tar.gz
Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module updates from Rusty Russell: "Nothing major: the stricter permissions checking for sysfs broke a staging driver; fix included. Greg KH said he'd take the patch but hadn't as the merge window opened, so it's included here to avoid breaking build" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: staging: fix up speakup kobject mode Use 'E' instead of 'X' for unsigned module taint flag. VERIFY_OCTAL_PERMISSIONS: stricter checking for sysfs perms. kallsyms: fix percpu vars on x86-64 with relocation. kallsyms: generalize address range checking module: LLVMLinux: Remove unused function warning from __param_check macro Fix: module signature vs tracepoints: add new TAINT_UNSIGNED_MODULE module: remove MODULE_GENERIC_TABLE module: allow multiple calls to MODULE_DEVICE_TABLE() per module module: use pr_cont
Diffstat (limited to 'kernel')
-rw-r--r--kernel/module.c10
-rw-r--r--kernel/panic.c2
-rw-r--r--kernel/tracepoint.c5
3 files changed, 11 insertions, 6 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 8dc7f5e80dd..29f7790eaa1 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1013,6 +1013,8 @@ static size_t module_flags_taint(struct module *mod, char *buf)
buf[l++] = 'F';
if (mod->taints & (1 << TAINT_CRAP))
buf[l++] = 'C';
+ if (mod->taints & (1 << TAINT_UNSIGNED_MODULE))
+ buf[l++] = 'E';
/*
* TAINT_FORCED_RMMOD: could be added.
* TAINT_CPU_OUT_OF_SPEC, TAINT_MACHINE_CHECK, TAINT_BAD_PAGE don't
@@ -3218,7 +3220,7 @@ static int load_module(struct load_info *info, const char __user *uargs,
pr_notice_once("%s: module verification failed: signature "
"and/or required key missing - tainting "
"kernel\n", mod->name);
- add_taint_module(mod, TAINT_FORCED_MODULE, LOCKDEP_STILL_OK);
+ add_taint_module(mod, TAINT_UNSIGNED_MODULE, LOCKDEP_STILL_OK);
}
#endif
@@ -3813,12 +3815,12 @@ void print_modules(void)
list_for_each_entry_rcu(mod, &modules, list) {
if (mod->state == MODULE_STATE_UNFORMED)
continue;
- printk(" %s%s", mod->name, module_flags(mod, buf));
+ pr_cont(" %s%s", mod->name, module_flags(mod, buf));
}
preempt_enable();
if (last_unloaded_module[0])
- printk(" [last unloaded: %s]", last_unloaded_module);
- printk("\n");
+ pr_cont(" [last unloaded: %s]", last_unloaded_module);
+ pr_cont("\n");
}
#ifdef CONFIG_MODVERSIONS
diff --git a/kernel/panic.c b/kernel/panic.c
index cca8a913ae7..79fd820bb5e 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -210,6 +210,7 @@ static const struct tnt tnts[] = {
{ TAINT_CRAP, 'C', ' ' },
{ TAINT_FIRMWARE_WORKAROUND, 'I', ' ' },
{ TAINT_OOT_MODULE, 'O', ' ' },
+ { TAINT_UNSIGNED_MODULE, 'E', ' ' },
};
/**
@@ -228,6 +229,7 @@ static const struct tnt tnts[] = {
* 'C' - modules from drivers/staging are loaded.
* 'I' - Working around severe firmware bug.
* 'O' - Out-of-tree module has been loaded.
+ * 'E' - Unsigned module has been loaded.
*
* The string is overwritten by the next call to print_tainted().
*/
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 50f8329c204..fb0a38a2655 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -460,7 +460,8 @@ EXPORT_SYMBOL_GPL(tracepoint_probe_unregister);
#ifdef CONFIG_MODULES
bool trace_module_has_bad_taint(struct module *mod)
{
- return mod->taints & ~((1 << TAINT_OOT_MODULE) | (1 << TAINT_CRAP));
+ return mod->taints & ~((1 << TAINT_OOT_MODULE) | (1 << TAINT_CRAP) |
+ (1 << TAINT_UNSIGNED_MODULE));
}
static int tracepoint_module_coming(struct module *mod)
@@ -474,7 +475,7 @@ static int tracepoint_module_coming(struct module *mod)
/*
* We skip modules that taint the kernel, especially those with different
* module headers (for forced load), to make sure we don't cause a crash.
- * Staging and out-of-tree GPL modules are fine.
+ * Staging, out-of-tree, and unsigned GPL modules are fine.
*/
if (trace_module_has_bad_taint(mod))
return 0;