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| author | Ingo Molnar <mingo@kernel.org> | 2016-05-07 07:00:07 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-07 07:00:07 +0200 |
| commit | 35dc9ec1076b79c31bf7ed538af008b7f23bb14d (patch) | |
| tree | f90affdd5dc45f47f8d5d84ea34c71e5e521e7a1 /fs/proc/base.c | |
| parent | 0ec7ae928a9c19c2b7b8054507d5694a2597065e (diff) | |
| parent | 07837831047fb72856d1f61a726a4094397facd8 (diff) | |
| download | op-kernel-dev-35dc9ec1076b79c31bf7ed538af008b7f23bb14d.zip op-kernel-dev-35dc9ec1076b79c31bf7ed538af008b7f23bb14d.tar.gz | |
Merge branch 'linus' into efi/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/proc/base.c')
| -rw-r--r-- | fs/proc/base.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index b1755b2..92e37e2 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -955,7 +955,8 @@ static ssize_t environ_read(struct file *file, char __user *buf, struct mm_struct *mm = file->private_data; unsigned long env_start, env_end; - if (!mm) + /* Ensure the process spawned far enough to have an environment. */ + if (!mm || !mm->env_end) return 0; page = (char *)__get_free_page(GFP_TEMPORARY); |
