The following advisory data is extracted from: https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_11810.json Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment. - Packet Storm Staff ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2025:11810-03 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2025:11810 Issue date: 2025-07-28 Revision: 03 CVE Names: CVE-2021-47185 ==================================================================== Summary: An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: drm/amd/display: Implement bounds check for stream encoder creation in DCN301 (CVE-2024-26660) * kernel: tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc (CVE-2021-47185) * kernel: nbd: null check for nla_nest_start (CVE-2024-27025) * kernel: perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835) * kernel: firmware: cs_dsp: Fix overflow checking of wmfw header (CVE-2024-41039) * kernel: powerpc/pseries: Whitelist dtl slub object for copying to userspace (CVE-2024-41065) * kernel: usb: xhci: prevent potential failure in handle_tx_event() for Transfer events without TRB (CVE-2024-42226) * kernel: blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race (CVE-2024-50082) * kernel: parport: Proper fix for array out-of-bounds access (CVE-2024-50074) * kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up (CVE-2025-21887) * kernel: wifi: iwlwifi: limit printed string from FW file (CVE-2025-21905) * kernel: ext4: avoid journaling sb update on error if journal is destroying (CVE-2025-22113) * kernel: ibmvnic: Use kernel helpers for hex dumps (CVE-2025-22104) * kernel: udmabuf: fix a buf size overflow issue during udmabuf creation (CVE-2025-37803) * kernel: sunrpc: handle SVC_GARBAGE during svc auth processing as auth error (CVE-2025-38089) * kernel: net/sched: fix use-after-free in taprio_dev_notifier (CVE-2025-38087) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Solution: https://access.redhat.com/articles/11258 CVEs: CVE-2021-47185 References: https://access.redhat.com/security/updates/classification/#important https://bugzilla.redhat.com/show_bug.cgi?id=2272782 https://bugzilla.redhat.com/show_bug.cgi?id=2274624 https://bugzilla.redhat.com/show_bug.cgi?id=2278484 https://bugzilla.redhat.com/show_bug.cgi?id=2282735 https://bugzilla.redhat.com/show_bug.cgi?id=2300408 https://bugzilla.redhat.com/show_bug.cgi?id=2300440 https://bugzilla.redhat.com/show_bug.cgi?id=2301544 https://bugzilla.redhat.com/show_bug.cgi?id=2322308 https://bugzilla.redhat.com/show_bug.cgi?id=2322310 https://bugzilla.redhat.com/show_bug.cgi?id=2355405 https://bugzilla.redhat.com/show_bug.cgi?id=2356613 https://bugzilla.redhat.com/show_bug.cgi?id=2360212 https://bugzilla.redhat.com/show_bug.cgi?id=2360265 https://bugzilla.redhat.com/show_bug.cgi?id=2365013 https://bugzilla.redhat.com/show_bug.cgi?id=2375529 https://bugzilla.redhat.com/show_bug.cgi?id=2375531