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authorJeff Garzik <jeff@garzik.org>2006-03-24 12:29:39 -0500
committerJeff Garzik <jeff@garzik.org>2006-03-24 12:29:39 -0500
commit4bbf7bc4c7bf1c80ec3c942fa5f1b6e6fa67dd99 (patch)
treec4ff89dc09abe69d58db1e14da22ecda9fdd3ce8 /ipc/shm.c
parent84ac69e8bf9f36eb0166817373336d14fa58f5cc (diff)
parentaec5c3c1a929d7d79a420e943285cf3ba26a7c0d (diff)
Merge branch 'upstream'
Conflicts: drivers/scsi/libata-core.c
Diffstat (limited to 'ipc/shm.c')
-rw-r--r--ipc/shm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/ipc/shm.c b/ipc/shm.c
index 9162123a7b2..16fe2786087 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -814,6 +814,9 @@ asmlinkage long sys_shmdt(char __user *shmaddr)
loff_t size = 0;
int retval = -EINVAL;
+ if (addr & ~PAGE_MASK)
+ return retval;
+
down_write(&mm->mmap_sem);
/*