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Subject[PATCH v2 1/3] pstore: add vmalloc error check
Date
When vmalloc is failed, let write_pmsg return -ENOMEM.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Acked-by: Kees Cook <keescook@chromium.org>
---
Changes in v2:
- update commit log.
---
fs/pstore/pmsg.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/fs/pstore/pmsg.c b/fs/pstore/pmsg.c
index feb5dd2..5a2f05a 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; ) {
--
2.5.0



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