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| author | Mateusz Jurczyk <mjurczyk@google.com> | 2017-06-23 19:32:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-10 07:41:35 -0800 |
| commit | 80176161f4514af9064f75a52a5dece6084128b5 (patch) | |
| tree | 1ab0e88e25f7373dfb273507b162811b10a1aa1d /tools/perf/scripts/python/bin | |
| parent | 11eea056980680aa4a24870165da340f4b32d06d (diff) | |
af_iucv: Move sockaddr length checks to before accessing sa_family in bind and connect handlers
[ Upstream commit e3c42b61ff813921ba58cfc0019e3fd63f651190 ]
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_IUCV 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.
Fixes: 52a82e23b9f2 ("af_iucv: Validate socket address length in iucv_sock_bind()")
Signed-off-by: Mateusz Jurczyk <mjurczyk@google.com>
[jwi: removed unneeded null-check for addr]
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions