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| author |   Lakshmi Ramasubramanian <nramas@linux.microsoft.com> | 2020-01-16 18:18:21 -0800 |
|---|---|---|
| committer |   Mimi Zohar <zohar@linux.ibm.com> | 2020-01-22 15:22:51 -0500 |
| commit | 5c7bac9fb2c5929a3b8600c45a972aabf9f410b5 (patch) | |
| tree | 5cdbb1770166ce93e3e1a3e736d3ae0dfa0bfcf7 /security/integrity/ima/Makefile | |
| parent | ima: ima/lsm policy rule loading logic bug fixes (diff) | |
| download | linux-dev-5c7bac9fb2c5929a3b8600c45a972aabf9f410b5.tar.xz linux-dev-5c7bac9fb2c5929a3b8600c45a972aabf9f410b5.zip | |
IMA: pre-allocate buffer to hold keyrings string
ima_match_keyring() is called while holding rcu read lock. Since this
function executes in atomic context, it should not call any function
that can sleep (such as kstrdup()).
This patch pre-allocates a buffer to hold the keyrings string read from
the IMA policy and uses that to match the given keyring.
Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
Fixes: e9085e0ad38a ("IMA: Add support to limit measuring keys")
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'security/integrity/ima/Makefile')
0 files changed, 0 insertions, 0 deletions