Red Hat Security Advisory: kernel security update

Fixed packages 48

Vulnerabilities 3

• High 7.8
  CVE-2025-23150

  ext4: fix off-by-one error in do_split

  In the Linux kernel, the following vulnerability has been resolved: ext4: fix off-by-one error in do_split Syzkaller detected a use-after-free issue in ext4_insert_dentry that was caused by out-of-bounds access due to incorrect splitting in do_split. BUG: KAS…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 1, 2025
• Unscored —
  CVE-2022-50020

  ext4: avoid resizing to a partial cluster size

  In the Linux kernel, the following vulnerability has been resolved: ext4: avoid resizing to a partial cluster size This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to clust…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 18, 2025
• Unscored —
  CVE-2025-38086

  net: ch9200: fix uninitialised access during mii_nway_restart

  In the Linux kernel, the following vulnerability has been resolved: net: ch9200: fix uninitialised access during mii_nway_restart In mii_nway_restart() the code attempts to call mii->mdio_read which is ch9200_mdio_read(). ch9200_mdio_read() utilises a local b…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 28, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2363268
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2373630
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2375305
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_13805.json
• report
  https://access.redhat.com/security/cve/CVE-2022-50020
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-50020
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-50020
• article
  https://lore.kernel.org/linux-cve-announce/2025061835-CVE-2022-50020-6f27@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-23150
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-23150
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-23150
• article
  https://lore.kernel.org/linux-cve-announce/2025050127-CVE-2025-23150-15b8@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-38086
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38086
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38086
• article
  https://lore.kernel.org/linux-cve-announce/2025062801-CVE-2025-38086-783b@gregkh/T