]> git.baikalelectronics.ru Git - kernel.git/commit
ima: Fix a potential integer overflow in ima_appraise_measurement
authorHuaxin Lu <luhuaxin1@huawei.com>
Tue, 5 Jul 2022 05:14:17 +0000 (13:14 +0800)
committerMimi Zohar <zohar@linux.ibm.com>
Thu, 7 Jul 2022 15:50:25 +0000 (11:50 -0400)
commitabc94b180a384113f203dbabb7367e563a57cac5
treead8e9b56f6e5c2ee0eb161ecf29deaf1454e340c
parenta2a61e1620f32f8fbabd524e8a08d2aeec79928e
ima: Fix a potential integer overflow in ima_appraise_measurement

When the ima-modsig is enabled, the rc passed to evm_verifyxattr() may be
negative, which may cause the integer overflow problem.

Fixes: d4a23e1f9d4a ("ima: Implement support for module-style appended signatures")
Signed-off-by: Huaxin Lu <luhuaxin1@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
security/integrity/ima/ima_appraise.c