GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-23 07:12:09 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

net: convert sock.sk_wmem_alloc from atomic_t to refcount_t

Browse source 
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>
This commit is contained in:
Reshetova, Elena 2017-06-30 13:08:00 +03:00 • committed by David S. Miller
parent 2638595afc
commit 14afee4b60
37 changed files with 74 additions and 85 deletions
Download patch file Download diff file Expand all files Collapse all files

2
include/linux/atmdev.h
View file

@ -254,7 +254,7 @@ static inline void atm_return(struct atm_vcc *vcc,int truesize)
static inline int atm_may_send(struct atm_vcc *vcc,unsigned int size)
{
return (size + atomic_read(&sk_atm(vcc)->sk_wmem_alloc)) <
return (size + refcount_read(&sk_atm(vcc)->sk_wmem_alloc)) <
sk_atm(vcc)->sk_sndbuf;
}