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authorLinus Torvalds <torvalds@linux-foundation.org>2017-06-15 17:54:51 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2017-06-15 17:54:51 +0900
commit54ed0f71f0a0cbf3218e2503a50364f178b1e855 (patch)
tree6bb2b4a205bbc208311fbf46e9ed02eb05357a17 /drivers
parent35e60a6b7577218ac7eb7777c8849822a080e127 (diff)
parentd41519a69b35b10af7fda867fb9100df24fdf403 (diff)
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu: "This fixes a bug on sparc where we may dereference freed stack memory" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: Work around deallocated stack frame reference gcc bug on sparc.
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/sw/rxe/rxe.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe.h b/drivers/infiniband/sw/rxe/rxe.h
index ecdba2fce083..1ac5b8551a4d 100644
--- a/drivers/infiniband/sw/rxe/rxe.h
+++ b/drivers/infiniband/sw/rxe/rxe.h
@@ -68,6 +68,7 @@
static inline u32 rxe_crc32(struct rxe_dev *rxe,
u32 crc, void *next, size_t len)
{
+ u32 retval;
int err;
SHASH_DESC_ON_STACK(shash, rxe->tfm);
@@ -81,7 +82,9 @@ static inline u32 rxe_crc32(struct rxe_dev *rxe,
return crc32_le(crc, next, len);
}
- return *(u32 *)shash_desc_ctx(shash);
+ retval = *(u32 *)shash_desc_ctx(shash);
+ barrier_data(shash_desc_ctx(shash));
+ return retval;
}
int rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);