diff options
| author | Mateusz Jurczyk <mjurczyk@google.com> | 2017-06-08 11:13:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-05 14:37:13 +0200 |
| commit | 0fc0fad07722e7ff1e4322e2155b8cd4d963e42a (patch) | |
| tree | 9053a49be4d06b7c2ac6c7d86d7d41b28c38da94 /net/core/dst.c | |
| parent | e2c3ee003280ce0e6cd02f305dd6c1ced17f286c (diff) | |
af_unix: Add sockaddr length checks before accessing sa_family in bind and connect handlers
[ Upstream commit defbcf2decc903a28d8398aa477b6881e711e3ea ]
Verify that the caller-provided sockaddr structure is large enough to
contain the sa_family field, before accessing it in bind() and connect()
handlers of the AF_UNIX socket. Since neither syscall enforces a minimum
size of the corresponding memory region, very short sockaddrs (zero or
one byte long) result in operating on uninitialized memory while
referencing .sa_family.
Signed-off-by: Mateusz Jurczyk <mjurczyk@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core/dst.c')
0 files changed, 0 insertions, 0 deletions