diff options
Diffstat (limited to 'linux-4.8-usercopy.patch')
| -rw-r--r-- | linux-4.8-usercopy.patch | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/linux-4.8-usercopy.patch b/linux-4.8-usercopy.patch deleted file mode 100644 index 7ff26c08914a..000000000000 --- a/linux-4.8-usercopy.patch +++ /dev/null @@ -1,44 +0,0 @@ ---- kernel/OS/Linux/os_linux.c 2015-01-28 08:07:23.000000000 +0000 -+++ kernel/OS/Linux/os_linux.c 2016-12-21 22:38:46.369612126 +0000 -@@ -640,7 +640,8 @@ - int dev = d; - oss_cdev_t *cdev; - int err; -- int localbuf[64]; /* 256 bytes is the largest frequently used ioctl size */ -+ /* Remove localbuf (workaround for CONFIG_HARDENED_USERCOPY from kernel 4.8) */ -+ /* int localbuf[64]; */ /* 256 bytes is the largest frequently used ioctl size */ - - int len = 0; - int alloced = 0; -@@ -666,14 +667,18 @@ - return OSS_EFAULT; - } - -+ /* Always use dynamic kernel memory allocation (instead of static localbuf) -+ (workaround for CONFIG_HARDENED_USERCOPY from kernel 4.8) */ -+ ptr = KERNEL_MALLOC (len); -+ alloced = 1; - /* Use statically allocated buffer for short arguments */ -- if (len > sizeof (localbuf)) -+ /*if (len > sizeof (localbuf)) - { - ptr = KERNEL_MALLOC (len); - alloced = 1; - } - else -- ptr = localbuf; -+ ptr = localbuf;*/ - - if (ptr == NULL || arg == 0) - { -@@ -710,8 +715,8 @@ - - /* Free the local buffer unless it was statically allocated */ - if (ptr != NULL && alloced) -- if (len > sizeof (localbuf)) -- KERNEL_FREE (ptr); -+// if (len > sizeof (localbuf)) -+ KERNEL_FREE (ptr); - - return ((err < 0) ? err : 0); - |