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| author | Kees Cook <keescook@chromium.org> | 2014-08-29 15:18:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-29 16:28:16 -0700 |
| commit | 137f8cff505ace6251dc442c7aa973d60c801a79 (patch) | |
| tree | 409dde7317a635efd036ce5d3029585988bd9000 /mm/zsmalloc.c | |
| parent | 0cf1e9d6c34d4c82ac3af8015594849814843d36 (diff) | |
| download | linux-137f8cff505ace6251dc442c7aa973d60c801a79.tar.gz linux-137f8cff505ace6251dc442c7aa973d60c801a79.tar.bz2 linux-137f8cff505ace6251dc442c7aa973d60c801a79.zip | |
mm/zpool: use prefixed module loading
To avoid potential format string expansion via module parameters, do not
use the zpool type directly in request_module() without a format string.
Additionally, to avoid arbitrary modules being loaded via zpool API
(e.g. via the zswap_zpool_type module parameter) add a "zpool-" prefix
to the requested module, as well as module aliases for the existing
zpool types (zbud and zsmalloc).
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Acked-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/zsmalloc.c')
| -rw-r--r-- | mm/zsmalloc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 4e2fc83cb394..94f38fac5e81 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -315,6 +315,7 @@ static struct zpool_driver zs_zpool_driver = { .total_size = zs_zpool_total_size, }; +MODULE_ALIAS("zpool-zsmalloc"); #endif /* CONFIG_ZPOOL */ /* per-cpu VM mapping areas for zspage accesses that cross page boundaries */ |