diff options
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/exec.c b/fs/exec.c index 14b4b3755580..0989fb8472a1 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1312,9 +1312,7 @@ int begin_new_exec(struct linux_binprm * bprm) if (retval) goto out_unlock; - if (me->flags & PF_KTHREAD) - free_kthread_struct(me); - me->flags &= ~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD | + me->flags &= ~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_NOFREEZE | PF_NO_SETAFFINITY); flush_thread(); me->personality &= ~bprm->per_clear; @@ -1959,6 +1957,10 @@ int kernel_execve(const char *kernel_filename, int fd = AT_FDCWD; int retval; + /* It is non-sense for kernel threads to call execve */ + if (WARN_ON_ONCE(current->flags & PF_KTHREAD)) + return -EINVAL; + filename = getname_kernel(kernel_filename); if (IS_ERR(filename)) return PTR_ERR(filename); |