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authorLakshmi Ramasubramanian <nramas@linux.microsoft.com>2020-01-16 18:18:21 -0800
committerMimi Zohar <zohar@linux.ibm.com>2020-01-22 15:22:51 -0500
commit5c7bac9fb2c5929a3b8600c45a972aabf9f410b5 (patch)
tree5cdbb1770166ce93e3e1a3e736d3ae0dfa0bfcf7 /security/keys
parent483ec26eed42bf050931d9a5c5f9f0b5f2ad5f3b (diff)
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/keys')
0 files changed, 0 insertions, 0 deletions