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(parent: c33f4d5) | patch
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)
commit613bdbdbb68ae9b9b032dd180de436702c5b15e6
treead8e9b56f6e5c2ee0eb161ecf29deaf1454e340ctree | snapshot
parentc33f4d54aa5f6b948efa439b9571f4fff1dfde87commit | diff
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: 782d3948f18f ("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 diff | blob | history
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