The following advisory data is extracted from:

https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_3935.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:           Moderate: kernel security update
Advisory ID:        RHSA-2025:3935-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2025:3935
Issue date:         2025-04-16
Revision:           03
CVE Names:          CVE-2021-47101
====================================================================

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 Moderate. 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: asix: fix uninit-value in asix_mdio_read() (CVE-2021-47101)

* kernel: tcp: make sure init the accept_queue's spinlocks once (CVE-2024-26614)

* kernel: wifi: mac80211: fix race condition on enabling fast-xmit (CVE-2024-26779)

* kernel: wifi: brcm80211: handle pmk_op allocation failure (CVE-2024-27048)

* kernel: netfilter: nf_tables: reject new basechain after table flag update (CVE-2024-35900)

* kernel: wifi: ath11k: decrease MHI channel buffer length to 8KB (CVE-2024-35938)

* kernel: virtio-blk: fix implicit overflow on virtio_max_dma_size (CVE-2023-52762)

* kernel: bonding: stop the device in bond_setup_by_slave() (CVE-2023-52784)

* kernel: igb: Fix string truncation warnings in igb_set_fw_version (CVE-2024-36010)

* kernel: ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action() (CVE-2024-36902)

* kernel: nfs: Handle error of rpc_proc_register() in nfs_net_init(). (CVE-2024-36939)

* kernel: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE (CVE-2024-50192)

* kernel: ALSA: usb-audio: Fix out of bounds reads when finding clock sources (CVE-2024-53150)

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-2021-47101

References:

https://access.redhat.com/security/updates/classification/#moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2267916
https://bugzilla.redhat.com/show_bug.cgi?id=2269211
https://bugzilla.redhat.com/show_bug.cgi?id=2273223
https://bugzilla.redhat.com/show_bug.cgi?id=2278431
https://bugzilla.redhat.com/show_bug.cgi?id=2281664
https://bugzilla.redhat.com/show_bug.cgi?id=2281819
https://bugzilla.redhat.com/show_bug.cgi?id=2282623
https://bugzilla.redhat.com/show_bug.cgi?id=2282772
https://bugzilla.redhat.com/show_bug.cgi?id=2282950
https://bugzilla.redhat.com/show_bug.cgi?id=2284545
https://bugzilla.redhat.com/show_bug.cgi?id=2284628
https://bugzilla.redhat.com/show_bug.cgi?id=2324612
https://bugzilla.redhat.com/show_bug.cgi?id=2333971
https://issues.redhat.com/browse/RHEL-83039