From 20b26bdb3dd5e46b01b9a7e1ce8342074df3c89c Mon Sep 17 00:00:00 2001 From: Thiago Macieira Date: Sat, 22 Dec 2012 08:32:12 -0800 Subject: Change all shmget calls to user-only memory Drop the read and write permissions for group and other users in the system. Change-Id: I8fc753f09126651af3fb82df3049050f0b14e876 (cherry-picked from Qt 5 commit 856f209fb63ae336bfb389a12d2a75fa886dc1c5) Reviewed-by: Richard J. Moore --- src/corelib/kernel/qsharedmemory_unix.cpp | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'src/corelib/kernel/qsharedmemory_unix.cpp') diff --git a/src/corelib/kernel/qsharedmemory_unix.cpp b/src/corelib/kernel/qsharedmemory_unix.cpp index 20d76e3530..4cf3acf08c 100644 --- a/src/corelib/kernel/qsharedmemory_unix.cpp +++ b/src/corelib/kernel/qsharedmemory_unix.cpp @@ -238,7 +238,7 @@ bool QSharedMemoryPrivate::create(int size) } // create - if (-1 == shmget(unix_key, size, 0666 | IPC_CREAT | IPC_EXCL)) { + if (-1 == shmget(unix_key, size, 0600 | IPC_CREAT | IPC_EXCL)) { QString function = QLatin1String("QSharedMemory::create"); switch (errno) { case EINVAL: @@ -293,7 +293,7 @@ bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode) { #ifndef QT_POSIX_IPC // grab the shared memory segment id - int id = shmget(unix_key, 0, (mode == QSharedMemory::ReadOnly ? 0444 : 0660)); + int id = shmget(unix_key, 0, (mode == QSharedMemory::ReadOnly ? 0400 : 0600)); if (-1 == id) { setErrorString(QLatin1String("QSharedMemory::attach (shmget)")); return false; @@ -381,7 +381,7 @@ bool QSharedMemoryPrivate::detach() size = 0; // Get the number of current attachments - int id = shmget(unix_key, 0, 0444); + int id = shmget(unix_key, 0, 0400); cleanHandle(); struct shmid_ds shmid_ds; -- cgit v1.2.3