Messages in this thread Patch in this message | | | From | Geliang Tang <> | Subject | [PATCH v2 1/3] pstore: add vmalloc error check | Date | Sun, 18 Oct 2015 18:49:23 +0800 |
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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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