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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-27 17:14:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-27 17:14:32 -0700 |
| commit | 5cefb4ee245cb28a3920dbd0edc9d6df1f72a8cf (patch) | |
| tree | 30f02544d759f49b4d498370a7492a2f9920b1ce | |
| parent | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma (diff) | |
| parent | efi/libstub/arm: Don't randomize runtime regions when CONFIG_HIBERNATION=y (diff) | |
| download | linux-dev-5cefb4ee245cb28a3920dbd0edc9d6df1f72a8cf.tar.xz linux-dev-5cefb4ee245cb28a3920dbd0edc9d6df1f72a8cf.zip | |
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.c | 3 | ||||
| -rw-r--r-- | drivers/firmware/efi/test/efi_test.c | 3 |
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) |