diff options
| -rw-r--r-- | drivers/misc/tegra-profiler/backtrace.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/misc/tegra-profiler/backtrace.c b/drivers/misc/tegra-profiler/backtrace.c index dd7c67cded5a..ea68e98ae5a6 100644 --- a/drivers/misc/tegra-profiler/backtrace.c +++ b/drivers/misc/tegra-profiler/backtrace.c @@ -38,12 +38,14 @@ quadd_callchain_store(struct quadd_callchain *callchain_data, u32 ip) static int check_vma_address(unsigned long addr, struct vm_area_struct *vma) { - unsigned long start, end; + unsigned long start, end, length; if (vma) { start = vma->vm_start; end = vma->vm_end; - if (addr >= start && addr + sizeof(unsigned long) <= end) + length = end - start; + if (length > sizeof(unsigned long) && + addr >= start && addr <= end - sizeof(unsigned long)) return 0; } return -EINVAL; |