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| author | Dan Rosenberg <drosenberg@vsecurity.com> | 2010-12-22 13:58:27 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-23 10:09:43 -0800 |
| commit | fdac1e0697356ac212259f2147aa60c72e334861 (patch) | |
| tree | ce479592fda66f81e1058c02b813dbc168958197 /net/9p | |
| parent | 1bde5ac49398a064c753bb490535cfad89e99a5f (diff) | |
| download | op-kernel-dev-fdac1e0697356ac212259f2147aa60c72e334861.zip op-kernel-dev-fdac1e0697356ac212259f2147aa60c72e334861.tar.gz | |
irda: prevent integer underflow in IRLMP_ENUMDEVICES
If the user-provided len is less than the expected offset, the
IRLMP_ENUMDEVICES getsockopt will do a copy_to_user() with a very large
size value. While this isn't be a security issue on x86 because it will
get caught by the access_ok() check, it may leak large amounts of kernel
heap on other architectures. In any event, this patch fixes it.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/9p')
0 files changed, 0 insertions, 0 deletions
