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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2019-11-07 08:50:25 +0530 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-11-14 11:49:15 -0400 |
| commit | 7ee23491b39259ae83899dd93b2a29ef0f22f0a7 (patch) | |
| tree | 924f3d8b13496eddaf6e1a2417d8b2a4964b0bac /crypto/ecrdsa_pub_key.asn1 | |
| parent | da046d5f895fca18d63b15ac8faebd5bf784e23a (diff) | |
| download | linux-next-7ee23491b39259ae83899dd93b2a29ef0f22f0a7.tar.gz | |
RDMA/qib: Validate ->show()/store() callbacks before calling them
The permissions of the read-only or write-only sysfs files can be
changed (as root) and the user can then try to read a write-only file or
write to a read-only file which will lead to kernel crash here.
Protect against that by always validating the show/store callbacks.
Link: https://lore.kernel.org/r/d45cc26361a174ae12dbb86c994ef334d257924b.1573096807.git.viresh.kumar@linaro.org
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'crypto/ecrdsa_pub_key.asn1')
0 files changed, 0 insertions, 0 deletions