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authorNeal Cardwell <ncardwell@google.com>2012-12-08 19:43:22 +0000
committerDavid S. Miller <davem@davemloft.net>2012-12-09 18:59:37 -0500
commit405c005949e47b6e91359159c24753519ded0c67 (patch)
tree0bc2ce5536a6c72a668319559099b2b3fad1debe /security/device_cgroup.c
parent1c95df85ca49640576de2f0a850925957b547b84 (diff)
inet_diag: validate byte code to prevent oops in inet_diag_bc_run()
Add logic to validate INET_DIAG_BC_S_COND and INET_DIAG_BC_D_COND operations. Previously we did not validate the inet_diag_hostcond, address family, address length, and prefix length. So a malicious user could make the kernel read beyond the end of the bytecode array by claiming to have a whole inet_diag_hostcond when the bytecode was not long enough to contain a whole inet_diag_hostcond of the given address family. Or they could make the kernel read up to about 27 bytes beyond the end of a connection address by passing a prefix length that exceeded the length of addresses of the given family. Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'security/device_cgroup.c')
0 files changed, 0 insertions, 0 deletions