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net/compat: Add missing sock updates for SCM_RIGHTS

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commit d9539752d2 upstream.

Add missed sock updates to compat path via a new helper, which will be
used more in coming patches. (The net/core/scm.c code is left as-is here
to assist with -stable backports for the compat path.)

Cc: Christoph Hellwig <hch@lst.de>
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: stable@vger.kernel.org
Fixes: 48a87cc26c ("net: netprio: fd passed in SCM_RIGHTS datagram not set correctly")
Fixes: d84295067f ("net: net_cls: fd passed in SCM_RIGHTS datagram not set correctly")
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kees Cook
2020-06-09 16:11:29 -07:00
committed by Greg Kroah-Hartman
parent c334db67eb
commit f90339a4ec
3 changed files with 26 additions and 0 deletions
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4
include/net/sock.h
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@@ -845,6 +845,8 @@ static inline int sk_memalloc_socks(void)
{
return static_branch_unlikely(&memalloc_socks_key);
}
void __receive_sock(struct file *file);
#else
static inline int sk_memalloc_socks(void)
@@ -852,6 +854,8 @@ static inline int sk_memalloc_socks(void)
return 0;
}
static inline void __receive_sock(struct file *file)
{ }
#endif
static inline gfp_t sk_gfp_mask(const struct sock *sk, gfp_t gfp_mask)