[PATCH] ksmbd: prevent memory leak on error return
From: Zongmin Zhou
Date: Wed Nov 08 2023 - 03:16:45 EST
When allocated memory for 'new' failed,just return
will cause memory leak of 'ar'.
Fixes: 1819a9042999 ("ksmbd: reorganize ksmbd_iov_pin_rsp()")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <error27@xxxxxxxxx>
Closes: https://lore.kernel.org/r/202311031837.H3yo7JVl-lkp@xxxxxxxxx/
Signed-off-by: Zongmin Zhou<zhouzongmin@xxxxxxxxxx>
---
fs/smb/server/ksmbd_work.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/smb/server/ksmbd_work.c b/fs/smb/server/ksmbd_work.c
index a2ed441e837a..dbbef686e160 100644
--- a/fs/smb/server/ksmbd_work.c
+++ b/fs/smb/server/ksmbd_work.c
@@ -123,8 +123,10 @@ static int __ksmbd_iov_pin_rsp(struct ksmbd_work *work, void *ib, int len,
new = krealloc(work->iov,
sizeof(struct kvec) * work->iov_alloc_cnt,
GFP_KERNEL | __GFP_ZERO);
- if (!new)
+ if (!new) {
+ kfree(ar);
return -ENOMEM;
+ }
work->iov = new;
}
--
2.34.1