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https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
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| Filename | Latest commit message | Latest commit date |
|---|---|---|
93070d339d
The CAIF channel connection request parameters need to be copied to/from
userspace. In support of usercopy hardening, this patch defines a region
in the struct proto slab cache in which userspace copy operations are
allowed.
example usage trace:
net/caif/caif_socket.c:
setsockopt(...):
...
copy_from_user(&cf_sk->conn_req.param.data, ..., ol)
This region is known as the slab cache's usercopy region. Slab caches
can now check that each dynamically sized copy operation involving
cache-managed memory falls entirely within the slab's usercopy region.
This patch is modified from Brad Spengler/PaX Team's PAX_USERCOPY
whitelisting code in the last public patch of grsecurity/PaX based on my
understanding of the code. Changes or omissions from the original code are
mine and don't reflect the original grsecurity/PaX code.
Signed-off-by: David Windsor <dave@nullcore.net>
[kees: split from network patch, provide usage trace]
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
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| .. | ||
| caif_dev.c | ||
| caif_socket.c | ||
| caif_usb.c | ||
| cfcnfg.c | ||
| cfctrl.c | ||
| cfdbgl.c | ||
| cfdgml.c | ||
| cffrml.c | ||
| cfmuxl.c | ||
| cfpkt_skbuff.c | ||
| cfrfml.c | ||
| cfserl.c | ||
| cfsrvl.c | ||
| cfutill.c | ||
| cfveil.c | ||
| cfvidl.c | ||
| chnl_net.c | ||
| Kconfig | ||
| Makefile | ||