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| author |   James Morris <james.morris@microsoft.com> | 2018-06-25 09:20:40 -0700 |
|---|---|---|
| committer | James Morris <james.morris@microsoft.com> | 2018-06-25 09:20:40 -0700 |
| commit | 57b54d74dd5c559bd35f2affaf11d8828aaf5733 (patch) | |
| tree | 025d99f0d6b298fbdbf3ce942ec7868131444090 /kernel/fork.c | |
| parent | MAINTAINERS: remove the outdated "LINUX SECURITY MODULE (LSM) FRAMEWORK" entry (diff) | |
| parent | Linux 4.18-rc2 (diff) | |
| download | wireguard-linux-57b54d74dd5c559bd35f2affaf11d8828aaf5733.tar.xz wireguard-linux-57b54d74dd5c559bd35f2affaf11d8828aaf5733.zip | |
Merge tag 'v4.18-rc2' into next-general
Merge to Linux 4.18-rc2 for security subsystem developers.
Diffstat (limited to '')
| -rw-r--r-- | kernel/fork.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index a5d21c42acfc..9440d61b925c 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -440,6 +440,14 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm, continue; } charge = 0; + /* + * Don't duplicate many vmas if we've been oom-killed (for + * example) + */ + if (fatal_signal_pending(current)) { + retval = -EINTR; + goto out; + } if (mpnt->vm_flags & VM_ACCOUNT) { unsigned long len = vma_pages(mpnt); @@ -811,7 +819,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node) clear_tsk_need_resched(tsk); set_task_stack_end_magic(tsk); -#ifdef CONFIG_CC_STACKPROTECTOR +#ifdef CONFIG_STACKPROTECTOR tsk->stack_canary = get_random_canary(); #endif @@ -899,6 +907,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p, mm->pinned_vm = 0; memset(&mm->rss_stat, 0, sizeof(mm->rss_stat)); spin_lock_init(&mm->page_table_lock); + spin_lock_init(&mm->arg_lock); mm_init_cpumask(mm); mm_init_aio(mm); mm_init_owner(mm, p); @@ -1712,7 +1721,7 @@ static __latent_entropy struct task_struct *copy_process( p->start_time = ktime_get_ns(); p->real_start_time = ktime_get_boot_ns(); p->io_context = NULL; - p->audit_context = NULL; + audit_set_context(p, NULL); cgroup_fork(p); #ifdef CONFIG_NUMA p->mempolicy = mpol_dup(p->mempolicy); @@ -1899,6 +1908,8 @@ static __latent_entropy struct task_struct *copy_process( */ copy_seccomp(p); + rseq_fork(p, clone_flags); + /* * Process group and session signals need to be delivered to just the * parent before the fork or both the parent and the child after the |