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| author | Luis Henriques <luis.henriques@canonical.com> | 2015-09-17 16:01:40 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-09-25 20:37:34 +0200 |
| commit | 6ed539c0aed83617b559d3e1b70ce9ce29c6fc5f (patch) | |
| tree | d3c609d5677c64429342eaccb66f73072e4a7ee7 /scripts | |
| parent | ffba7d48339b437cdf1d12979b56ebc562ae6c2d (diff) | |
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")
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions