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| author | Luis Henriques <luis.henriques@canonical.com> | 2015-09-18 02:01:40 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-18 07:16:07 +0300 |
| commit | 3aaf14da807a4e9931a37f21e4251abb8a67021b (patch) | |
| tree | c51131105c74598a587d4bfddc7b4b4d2df5bbb4 /mm | |
| parent | 72714841b705a5b9bccf37ee85a62352bee3a3ef (diff) | |
| download | linux-3aaf14da807a4e9931a37f21e4251abb8a67021b.tar.xz | |
zram: fix possible use after free in zcomp_create()
zcomp_create() verifies the success of zcomp_strm_{multi,single}_create()
through comp->stream, which can potentially be pointing to memory that
was freed if these functions returned an error.
While at it, replace a 'ERR_PTR(-ENOMEM)' by a more generic
'ERR_PTR(error)' as in the future zcomp_strm_{multi,siggle}_create()
could return other error codes. Function documentation updated
accordingly.
Fixes: beca3ec71fe5 ("zram: add multi stream functionality")
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions