When module-style signatures appended at the end of files are supported for IMA appraisal, the code will fallback to the xattr signature if the appended one fails to verify. The problem is that we don't know whether we need to fallback to the xattr signature until the appraise step, and by then the measure step was already completed and would need to be done again in case the template includes the signature. To avoid this problem, do the appraisal first so that the correct signature is stored by the template in the measure step. Signed-off-by: Thiago Jung Bauermann <bauerman@xxxxxxxxxxxxxxxxxx> --- security/integrity/ima/ima_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 2aebb7984437..0b4845e7248d 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -244,12 +244,12 @@ static int process_measurement(struct file *file, char *buf, loff_t size, if (!pathbuf) /* ima_rdwr_violation possibly pre-fetched */ pathname = ima_d_path(&file->f_path, &pathbuf, filename); - if (action & IMA_MEASURE) - ima_store_measurement(iint, file, pathname, - xattr_value, xattr_len, pcr); if (action & IMA_APPRAISE_SUBMASK) rc = ima_appraise_measurement(func, iint, file, pathname, xattr_value, xattr_len, opened); + if (action & IMA_MEASURE) + ima_store_measurement(iint, file, pathname, + xattr_value, xattr_len, pcr); if (action & IMA_AUDIT) ima_audit_measurement(iint, pathname); -- 2.13.0
