From: shenxiangwei shenxiangwei1@huawei.com
hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4XHBM CVE: NA
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The check for control character shouldn't be added when import a binary digest list.
Signed-off-by: shenxiangwei shenxiangwei1@huawei.com Reviewed-by: Lu Huaxin luhuaxin1@huawei.com --- security/integrity/ima/ima_fs.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c index ecdeab23f022..254916e62845 100644 --- a/security/integrity/ima/ima_fs.c +++ b/security/integrity/ima/ima_fs.c @@ -389,19 +389,21 @@ static ssize_t ima_write_data(struct file *file, const char __user *buf, goto out_free;
data[datalen] = '\0'; - for (i = 0; data[i] != '\n' && data[i] != '\0'; i++) { - if (iscntrl(data[i])) { - pr_err_once("invalid path (control characters are not allowed)\n"); - result = -EINVAL; - goto out_free; - } - }
result = mutex_lock_interruptible(&ima_write_mutex); if (result < 0) goto out_free;
if (data[0] == '/') { + for (i = 0; data[i] != '\n' && data[i] != '\0'; i++) { + if (iscntrl(data[i])) { + pr_err_once("invalid path (control characters are not allowed)\n"); + result = -EINVAL; + mutex_unlock(&ima_write_mutex); + goto out_free; + } + } + result = ima_read_file(data, dentry); } else if (dentry == ima_policy) { if (ima_appraise & IMA_APPRAISE_POLICY) {