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| author | Rob Herring <rob.herring@calxeda.com> | 2013-11-07 10:34:46 -0600 |
|---|---|---|
| committer | Rob Herring <rob.herring@calxeda.com> | 2013-11-07 10:34:46 -0600 |
| commit | b5480950c6cbb7b07ab1c1a5af0dc661a1cb6f24 (patch) | |
| tree | b5fcb00387a838beb2bcf2f8ed2fd3d6d460c8ae /ipc/msg.c | |
| parent | e363bbac316ffb5daaf45d855f82680148cafe20 (diff) | |
| parent | 355e62f5ad12b005c862838156262eb2df2f8dff (diff) | |
| download | linux-b5480950c6cbb7b07ab1c1a5af0dc661a1cb6f24.tar.gz linux-b5480950c6cbb7b07ab1c1a5af0dc661a1cb6f24.tar.xz | |
Merge remote-tracking branch 'grant/devicetree/next' into for-next
Diffstat (limited to 'ipc/msg.c')
| -rw-r--r-- | ipc/msg.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/ipc/msg.c b/ipc/msg.c index 9e4310c546ae..558aa91186b6 100644 --- a/ipc/msg.c +++ b/ipc/msg.c @@ -695,6 +695,12 @@ long do_msgsnd(int msqid, long mtype, void __user *mtext, if (ipcperms(ns, &msq->q_perm, S_IWUGO)) goto out_unlock0; + /* raced with RMID? */ + if (msq->q_perm.deleted) { + err = -EIDRM; + goto out_unlock0; + } + err = security_msg_queue_msgsnd(msq, msg, msgflg); if (err) goto out_unlock0; @@ -901,6 +907,13 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgfl goto out_unlock1; ipc_lock_object(&msq->q_perm); + + /* raced with RMID? */ + if (msq->q_perm.deleted) { + msg = ERR_PTR(-EIDRM); + goto out_unlock0; + } + msg = find_msg(msq, &msgtyp, mode); if (!IS_ERR(msg)) { /* |