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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

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Pull pid leak fix from Eric Biederman:
 "Oleg noticed that put_pid(thread_pid) was not getting called when proc
  was not compiled in.

  Let's get that fixed before 5.7 is released and causes problems for
  anyone"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  proc: Put thread_pid in release_task not proc_flush_pid
This commit is contained in:
Linus Torvalds 2020-04-25 12:25:32 -07:00
commit b2768df24e
2 changed files with 1 additions and 1 deletions
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1
fs/proc/base.c
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@ -3286,7 +3286,6 @@ static const struct inode_operations proc_tgid_base_inode_operations = {
void proc_flush_pid(struct pid *pid)
{
proc_invalidate_siblings_dcache(&pid->inodes, &pid->lock);
put_pid(pid);
}
static struct dentry *proc_pid_instantiate(struct dentry * dentry,

1
kernel/exit.c
View File

@ -219,6 +219,7 @@ repeat:
write_unlock_irq(&tasklist_lock);
proc_flush_pid(thread_pid);
put_pid(thread_pid);
release_thread(p);
put_task_struct_rcu_user(p);