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| author |   Geliang Tang <geliangtang@163.com> | 2015-10-20 00:39:01 -0700 |
|---|---|---|
| committer |   Tony Luck <tony.luck@intel.com> | 2015-10-21 09:27:10 -0700 |
| commit | 549b39a9e7ef3eee2d0895530f277c012abc7b43 (patch) | |
| tree | 742b9ce0b00b89b861b21c7c336bc848c5734a99 /fs/pstore/pmsg.c | |
| parent | Linux 4.3-rc6 (diff) | |
| download | linux-dev-549b39a9e7ef3eee2d0895530f277c012abc7b43.tar.xz linux-dev-549b39a9e7ef3eee2d0895530f277c012abc7b43.zip | |
pstore: add vmalloc error check
If vmalloc fails, make write_pmsg return -ENOMEM.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'fs/pstore/pmsg.c')
| -rw-r--r-- | fs/pstore/pmsg.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/pstore/pmsg.c b/fs/pstore/pmsg.c index feb5dd2948b4..5a2f05a16c1e 100644 --- a/fs/pstore/pmsg.c +++ b/fs/pstore/pmsg.c @@ -37,6 +37,8 @@ static ssize_t write_pmsg(struct file *file, const char __user *buf, if (buffer_size > PMSG_MAX_BOUNCE_BUFFER_SIZE) buffer_size = PMSG_MAX_BOUNCE_BUFFER_SIZE; buffer = vmalloc(buffer_size); + if (!buffer) + return -ENOMEM; mutex_lock(&pmsg_lock); for (i = 0; i < count; ) { |