Red Hat Security Advisory: kernel security update

Fixed packages 48

Vulnerabilities 5

• Critical 9.1
  CVE-2022-49058

  cifs: potential buffer overflow in handling symlinks

  In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Feb 26, 2025
• High 8.6
  CVE-2025-22004

  net: atm: fix use after free in lec_send()

  In the Linux kernel, the following vulnerability has been resolved: net: atm: fix use after free in lec_send() The ->send() operation frees skb so save the length before calling ->send() to avoid a use after free.

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Apr 3, 2025
• High 7.8
  CVE-2022-50022

  drivers:md:fix a potential use-after-free bug

  In the Linux kernel, the following vulnerability has been resolved: drivers:md:fix a potential use-after-free bug In line 2884, "raid5_release_stripe(sh);" drops the reference to sh and may cause sh to be released. However, sh is subsequently used in lines 28…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 18, 2025
• High 7.8
  CVE-2025-37738

  ext4: ignore xattrs past end

  In the Linux kernel, the following vulnerability has been resolved: ext4: ignore xattrs past end Once inside 'ext4_xattr_inode_dec_ref_all' we should ignore xattrs entries past the 'end' entry. This fixes the following KASAN reported issue: ==================…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 1, 2025
• High 7.1
  CVE-2025-21905

  wifi: iwlwifi: limit printed string from FW file

  In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: limit printed string from FW file There's no guarantee here that the file is always with a NUL-termination, so reading the string may read beyond the end of the TLV. If that's …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Apr 1, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2348254
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2356613
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2357142
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2363305
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2373672
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_12238.json
• report
  https://access.redhat.com/security/cve/CVE-2022-49058
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-49058
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-49058
• article
  https://lore.kernel.org/linux-cve-announce/2025022653-CVE-2022-49058-5df2@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2022-50022
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-50022
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-50022
• article
  https://lore.kernel.org/linux-cve-announce/2025061835-CVE-2022-50022-98b6@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-21905
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-21905
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-21905
• article
  https://lore.kernel.org/linux-cve-announce/2025040129-CVE-2025-21905-348b@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-22004
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-22004
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-22004
• article
  https://lore.kernel.org/linux-cve-announce/2025040349-CVE-2025-22004-64f9@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-37738
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-37738
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-37738
• article
  https://lore.kernel.org/linux-cve-announce/2025050132-CVE-2025-37738-deb1@gregkh/T