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[PULL,v2,23/23] linux-user: check return value of malloc()

Message ID 8349027af60e861fcc401c928eb76f9f418815d7.1408436940.git.riku.voipio@linaro.org
State Superseded
Headers show

Commit Message

Riku Voipio Aug. 19, 2014, 8:32 a.m. UTC 
From: zhanghailiang <zhang.zhanghailiang@huawei.com>

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Acked-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
---
 linux-user/syscall.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 3b1beff..3aaed81 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2904,6 +2904,10 @@  static inline abi_long do_msgsnd(int msqid, abi_long msgp,
     if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
         return -TARGET_EFAULT;
     host_mb = malloc(msgsz+sizeof(long));
+    if (!host_mb) {
+        unlock_user_struct(target_mb, msgp, 0);
+        return -TARGET_ENOMEM;
+    }
     host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
     memcpy(host_mb->mtext, target_mb->mtext, msgsz);
     ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));