Protect td_sigmask with the proc lock.
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538621734a
commit
94df4b8584
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=113626
@ -66,13 +66,15 @@ int
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getcontext(struct thread *td, struct getcontext_args *uap)
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{
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ucontext_t uc;
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int ret;
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int ret;
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if (uap->ucp == NULL)
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ret = EINVAL;
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else {
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get_mcontext(td, &uc.uc_mcontext);
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PROC_LOCK(td->td_proc);
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uc.uc_sigmask = td->td_sigmask;
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PROC_UNLOCK(td->td_proc);
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ret = copyout(&uc, uap->ucp, UC_COPY_SIZE);
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}
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return (ret);
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@ -114,7 +116,9 @@ swapcontext(struct thread *td, struct swapcontext_args *uap)
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ret = EINVAL;
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else {
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get_mcontext(td, &uc.uc_mcontext);
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PROC_LOCK(td->td_proc);
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uc.uc_sigmask = td->td_sigmask;
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PROC_UNLOCK(td->td_proc);
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ret = copyout(&uc, uap->oucp, UC_COPY_SIZE);
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if (ret == 0) {
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ret = copyin(uap->ucp, &uc, UC_COPY_SIZE);
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@ -747,7 +747,9 @@ thread_getcontext(struct thread *td, ucontext_t *uc)
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#ifdef __i386__
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get_mcontext(td, &uc->uc_mcontext);
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#endif
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PROC_LOCK(td->td_proc);
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uc->uc_sigmask = td->td_sigmask;
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PROC_UNLOCK(td->td_proc);
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}
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/*
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@ -153,7 +153,9 @@ thr_create(struct thread *td, struct thr_create_args *uap)
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(unsigned) RANGEOF(struct thread, td_startcopy, td_endcopy));
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td0->td_proc = td->td_proc;
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PROC_LOCK(td->td_proc);
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td0->td_sigmask = td->td_sigmask;
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PROC_UNLOCK(td->td_proc);
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bcopy(td->td_frame, td0->td_frame, sizeof(struct trapframe));
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td0->td_ucred = crhold(td->td_ucred);
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@ -747,7 +747,9 @@ thread_getcontext(struct thread *td, ucontext_t *uc)
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#ifdef __i386__
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get_mcontext(td, &uc->uc_mcontext);
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#endif
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PROC_LOCK(td->td_proc);
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uc->uc_sigmask = td->td_sigmask;
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PROC_UNLOCK(td->td_proc);
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}
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/*
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