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Kernel: sigpending() and sigprocmask() should validate memory writes.

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This commit is contained in:
Andreas Kling 2019-02-21 21:33:52 +01:00
parent 19acb2baf7
commit 8b64f213a1
1 changed files with 2 additions and 2 deletions
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4
Kernel/Process.cpp
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@ -1820,7 +1820,7 @@ int Process::sys$dup2(int old_fd, int new_fd)
int Process::sys$sigprocmask(int how, const sigset_t* set, sigset_t* old_set) int Process::sys$sigprocmask(int how, const sigset_t* set, sigset_t* old_set)
{ {
if (old_set) { if (old_set) {
if (!validate_read_typed(old_set)) if (!validate_write_typed(old_set))
return -EFAULT; return -EFAULT;
*old_set = m_signal_mask; *old_set = m_signal_mask;
} }
@ -1846,7 +1846,7 @@ int Process::sys$sigprocmask(int how, const sigset_t* set, sigset_t* old_set)
int Process::sys$sigpending(sigset_t* set) int Process::sys$sigpending(sigset_t* set)
{ {
if (!validate_read_typed(set)) if (!validate_write_typed(set))
return -EFAULT; return -EFAULT;
*set = m_pending_signals; *set = m_pending_signals;
return 0; return 0;