diff options
| author | Luis Henriques <luis.henriques@canonical.com> | 2015-09-17 16:01:40 -0700 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2015-10-06 11:52:30 +0100 |
| commit | 1c91ff9809fcc99cde092190e203c489d6019727 (patch) | |
| tree | 3f402a4dfd7924f833ba303c845790fab1c1cba9 /tools | |
| parent | 8836aeffd4be092c65c04a5cd88ecc4031cba0b5 (diff) | |
| download | linux-stable-1c91ff9809fcc99cde092190e203c489d6019727.tar.gz linux-stable-1c91ff9809fcc99cde092190e203c489d6019727.tar.bz2 linux-stable-1c91ff9809fcc99cde092190e203c489d6019727.zip | |
zram: fix possible use after free in zcomp_create()
commit 3aaf14da807a4e9931a37f21e4251abb8a67021b upstream.
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")
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions