{"id":17339,"date":"2026-09-05T02:31:00","date_gmt":"2026-09-04T18:31:00","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80835"},"modified":"2026-09-05T02:31:00","modified_gmt":"2026-09-04T18:31:00","slug":"cve-2026-80835","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80835","title":{"rendered":"CVE-2026-80835 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qcom-rng &#8211; Re"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>crypto: qcom-rng &#8211; Remove crypto_rng interface<\/p>\n<p>qcom-rng.c exposes the same hardware through two completely separate<br \/>\ninterfaces, crypto_rng and hwrng.  However, the implementation of this<br \/>\nis buggy because it permits generation operations from these interfaces<br \/>\nto run concurrently with each other, accessing the same registers.  That<br \/>\nis, qcom_rng_generate() synchronizes with itself but not with<br \/>\nqcom_hwrng_read().  This results in potential repetition of output from<br \/>\nthe RNG, output of non-random values, etc.<\/p>\n<p>Fortunately, there&#8217;s actually no point in hardware RNG drivers<br \/>\nimplementing the crypto_rng interface.  It&#8217;s not actually used by<br \/>\nanything besides the &#8220;rng&#8221; algorithm type of AF_ALG, which in turn is<br \/>\nnot actually used in practice.  Other crypto_rng hardware drivers are<br \/>\nlikewise being phased out, leaving just the hwrng support.<\/p>\n<p>Thus, remove it to simplify the code and avoid conflict (and confusion)<br \/>\nwith the hwrng interface which is the one that actually matters.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>crypto: qcom-rng &#8211; Remove crypto_rng interface<\/p>\n<p>qcom-rng.c exposes the same hardware through two completely separate<br \/>\ninterfaces, cr<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17339","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17339","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}