diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/generic-radix-tree.c | 2 | ||||
| -rw-r--r-- | lib/overflow_kunit.c | 3 | ||||
| -rw-r--r-- | lib/vdso/getrandom.c | 4 |
3 files changed, 7 insertions, 2 deletions
diff --git a/lib/generic-radix-tree.c b/lib/generic-radix-tree.c index aaefb9b678c8..fa692c86f069 100644 --- a/lib/generic-radix-tree.c +++ b/lib/generic-radix-tree.c @@ -121,6 +121,8 @@ void *__genradix_ptr_alloc(struct __genradix *radix, size_t offset, if ((v = cmpxchg_release(&radix->root, r, new_root)) == r) { v = new_root; new_node = NULL; + } else { + new_node->children[0] = NULL; } } diff --git a/lib/overflow_kunit.c b/lib/overflow_kunit.c index f314a0c15a6d..2abc78367dd1 100644 --- a/lib/overflow_kunit.c +++ b/lib/overflow_kunit.c @@ -668,7 +668,6 @@ DEFINE_TEST_ALLOC(devm_kzalloc, devm_kfree, 1, 1, 0); static void overflow_allocation_test(struct kunit *test) { - const char device_name[] = "overflow-test"; struct device *dev; int count = 0; @@ -678,7 +677,7 @@ static void overflow_allocation_test(struct kunit *test) } while (0) /* Create dummy device for devm_kmalloc()-family tests. */ - dev = kunit_device_register(test, device_name); + dev = kunit_device_register(test, "overflow-test"); KUNIT_ASSERT_FALSE_MSG(test, IS_ERR(dev), "Cannot register test device\n"); diff --git a/lib/vdso/getrandom.c b/lib/vdso/getrandom.c index b230f0b10832..e1db228bc4f0 100644 --- a/lib/vdso/getrandom.c +++ b/lib/vdso/getrandom.c @@ -85,6 +85,10 @@ __cvdso_getrandom_data(const struct vdso_rng_data *rng_info, void *buffer, size_ if (unlikely(((unsigned long)opaque_state & ~PAGE_MASK) + sizeof(*state) > PAGE_SIZE)) return -EFAULT; + /* Handle unexpected flags by falling back to the kernel. */ + if (unlikely(flags & ~(GRND_NONBLOCK | GRND_RANDOM | GRND_INSECURE))) + goto fallback_syscall; + /* If the caller passes the wrong size, which might happen due to CRIU, fallback. */ if (unlikely(opaque_len != sizeof(*state))) goto fallback_syscall; |