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| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-07-04 09:34:57 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-04 01:29:04 -0700 |
| commit | d3981bc615f652b9ead0762dd180125ac2b21a3a (patch) | |
| tree | ec29e37211e9ac8e862d019735c539a34dfdabee /include/net | |
| parent | 271201c09c86cd75e0fd6206bde689176e85aa21 (diff) | |
| download | linux-stable-d3981bc615f652b9ead0762dd180125ac2b21a3a.tar.gz linux-stable-d3981bc615f652b9ead0762dd180125ac2b21a3a.tar.bz2 linux-stable-d3981bc615f652b9ead0762dd180125ac2b21a3a.zip | |
net, ipv6: convert ifmcaddr6.mca_refcnt from atomic_t to refcount_t
refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.
Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/if_inet6.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h index 2b41cb86d62f..4bb52ce634e8 100644 --- a/include/net/if_inet6.h +++ b/include/net/if_inet6.h @@ -127,7 +127,7 @@ struct ifmcaddr6 { struct timer_list mca_timer; unsigned int mca_flags; int mca_users; - atomic_t mca_refcnt; + refcount_t mca_refcnt; spinlock_t mca_lock; unsigned long mca_cstamp; unsigned long mca_tstamp; |