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authorLinus Torvalds <torvalds@linux-foundation.org>2017-10-27 17:14:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-10-27 17:14:32 -0700
commit5cefb4ee245cb28a3920dbd0edc9d6df1f72a8cf (patch)
tree30f02544d759f49b4d498370a7492a2f9920b1ce
parent15f859ae5c43c7f0a064ed92d33f7a5bc5de6de0 (diff)
parent38fb6652229c2149e8694d57db442878fdf8a1bd (diff)
downloadlinux-stericsson-5cefb4ee245cb28a3920dbd0edc9d6df1f72a8cf.tar.gz
Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar: "Two fixes: an ARM fix for KASLR interaction with hibernation, plus an efi_test crash fix" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi/libstub/arm: Don't randomize runtime regions when CONFIG_HIBERNATION=y efi/efi_test: Prevent an Oops in efi_runtime_query_capsulecaps()
-rw-r--r--drivers/firmware/efi/libstub/arm-stub.c3
-rw-r--r--drivers/firmware/efi/test/efi_test.c3
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/firmware/efi/libstub/arm-stub.c b/drivers/firmware/efi/libstub/arm-stub.c
index 1cb2d1c070c3..a94601d5939e 100644
--- a/drivers/firmware/efi/libstub/arm-stub.c
+++ b/drivers/firmware/efi/libstub/arm-stub.c
@@ -238,7 +238,8 @@ unsigned long efi_entry(void *handle, efi_system_table_t *sys_table,
efi_random_get_seed(sys_table);
- if (!nokaslr()) {
+ /* hibernation expects the runtime regions to stay in the same place */
+ if (!IS_ENABLED(CONFIG_HIBERNATION) && !nokaslr()) {
/*
* Randomize the base of the UEFI runtime services region.
* Preserve the 2 MB alignment of the region by taking a
diff --git a/drivers/firmware/efi/test/efi_test.c b/drivers/firmware/efi/test/efi_test.c
index 08129b7b80ab..41c48a1e8baa 100644
--- a/drivers/firmware/efi/test/efi_test.c
+++ b/drivers/firmware/efi/test/efi_test.c
@@ -593,6 +593,9 @@ static long efi_runtime_query_capsulecaps(unsigned long arg)
if (copy_from_user(&qcaps, qcaps_user, sizeof(qcaps)))
return -EFAULT;
+ if (qcaps.capsule_count == ULONG_MAX)
+ return -EINVAL;
+
capsules = kcalloc(qcaps.capsule_count + 1,
sizeof(efi_capsule_header_t), GFP_KERNEL);
if (!capsules)