diff options
| author | Ingo Molnar <[email protected]> | 2010-09-15 10:27:31 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2010-09-15 10:27:31 +0200 |
| commit | 3aabae7d9dfaed60effe93662f02c19bafc18537 (patch) | |
| tree | af94cdd69add07601d9f3f5988dfc1dc255e3886 /fs/exec.c | |
| parent | 79e406d7b00ab2b261ae32a59f266fd3b7af6f29 (diff) | |
| parent | 57c072c7113f54f9512624d6c665db6184448782 (diff) | |
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c index 2d9455282744..828dd2461d6b 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -376,6 +376,9 @@ static int count(const char __user * const __user * argv, int max) argv++; if (i++ >= max) return -E2BIG; + + if (fatal_signal_pending(current)) + return -ERESTARTNOHAND; cond_resched(); } } @@ -419,6 +422,12 @@ static int copy_strings(int argc, const char __user *const __user *argv, while (len > 0) { int offset, bytes_to_copy; + if (fatal_signal_pending(current)) { + ret = -ERESTARTNOHAND; + goto out; + } + cond_resched(); + offset = pos % PAGE_SIZE; if (offset == 0) offset = PAGE_SIZE; @@ -594,6 +603,11 @@ int setup_arg_pages(struct linux_binprm *bprm, #else stack_top = arch_align_stack(stack_top); stack_top = PAGE_ALIGN(stack_top); + + if (unlikely(stack_top < mmap_min_addr) || + unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr)) + return -ENOMEM; + stack_shift = vma->vm_end - stack_top; bprm->p -= stack_shift; |