https://github.com/torvalds/linux
Revision ad9a3668a434faca1339789ed2f043d679199309 authored by Majd Dibbiny on 24 December 2017, 11:54:56 UTC, committed by Jason Gunthorpe on 27 December 2017, 22:24:40 UTC
User-space applications can do mmap and munmap directly at
any time.

Since the VMA list is not protected with a mutex, concurrent
accesses to the VMA list from the mmap and munmap can cause
data corruption. Add a mutex around the list.

Cc: <stable@vger.kernel.org> # v4.7
Fixes: 7c2344c3bbf9 ("IB/mlx5: Implements disassociate_ucontext API")
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
1 parent 4c009af
History
Tip revision: ad9a3668a434faca1339789ed2f043d679199309 authored by Majd Dibbiny on 24 December 2017, 11:54:56 UTC
IB/mlx5: Serialize access to the VMA list
Tip revision: ad9a366
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.cocciconfig -rw-r--r-- 59 bytes
.get_maintainer.ignore -rw-r--r-- 31 bytes
.gitattributes -rw-r--r-- 30 bytes
.gitignore -rw-r--r-- 1.4 KB
.mailmap -rw-r--r-- 8.8 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 96.2 KB
Kbuild -rw-r--r-- 2.2 KB
Kconfig -rw-r--r-- 287 bytes
MAINTAINERS -rw-r--r-- 425.9 KB
Makefile -rw-r--r-- 58.3 KB
README -rw-r--r-- 722 bytes

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