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Kernel: Use Userspace<T> in sys$sigaction()

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fuzz-syscalls found a bunch of unaligned accesses into struct sigaction
via this syscall. This patch fixes that issue by porting the syscall
to Userspace<T> which we should have done anyway. :^)

Fixes #5500.
This commit is contained in:
Andreas Kling 2021-03-01 14:05:42 +01:00
parent 261b30e120
commit 6a6eb8844a
2 changed files with 14 additions and 10 deletions
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2
Kernel/Process.h
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@ -279,7 +279,7 @@ public:
KResultOr<pid_t> sys$fork(RegisterState&);
KResultOr<int> sys$execve(Userspace<const Syscall::SC_execve_params*>);
KResultOr<int> sys$dup2(int old_fd, int new_fd);
KResultOr<int> sys$sigaction(int signum, const sigaction* act, sigaction* old_act);
KResultOr<int> sys$sigaction(int signum, Userspace<const sigaction*> act, Userspace<sigaction*> old_act);
KResultOr<int> sys$sigprocmask(int how, Userspace<const sigset_t*> set, Userspace<sigset_t*> old_set);
KResultOr<int> sys$sigpending(Userspace<sigset_t*>);
KResultOr<int> sys$getgroups(ssize_t, Userspace<gid_t*>);