Red Hat Security Advisory: kernel security update

Fixed packages 47

Vulnerabilities 10

• 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 8.4
  CVE-2025-22121

  ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()

  In the Linux kernel, the following vulnerability has been resolved: ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() There's issue as follows: BUG: KASAN: use-after-free in ext4_xattr_inode_dec_ref_all+0x6ff/0x790 Read of size 4 at addr ffff88807…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Apr 16, 2025
• High 7.8
  CVE-2022-49846

  udf: Fix a slab-out-of-bounds write bug in udf_find_entry()

  In the Linux kernel, the following vulnerability has been resolved: udf: Fix a slab-out-of-bounds write bug in udf_find_entry() Syzbot reported a slab-out-of-bounds Write bug: loop0: detected capacity change from 0 to 2048 ====================================…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 1, 2025
• High 7.8
  CVE-2025-21759

  ipv6: mcast: extend RCU protection in igmp6_send()

  In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6_send() igmp6_send() can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a pot…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Feb 27, 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-2022-49395

  um: Fix out-of-bounds read in LDT setup

  In the Linux kernel, the following vulnerability has been resolved: um: Fix out-of-bounds read in LDT setup syscall_stub_data() expects the data_count parameter to be the number of longs, not bytes. ============================================================…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Feb 26, 2025
• Unscored —
  CVE-2022-49122

  dm ioctl: prevent potential spectre v1 gadget

  In the Linux kernel, the following vulnerability has been resolved: dm ioctl: prevent potential spectre v1 gadget It appears like cmd could be a Spectre v1 gadget as it's supplied by a user and used as an array index. Prevent the contents of kernel memory fro…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Feb 26, 2025
• Unscored —
  CVE-2022-50066

  net: atlantic: fix aq_vec index out of range error

  In the Linux kernel, the following vulnerability has been resolved: net: atlantic: fix aq_vec index out of range error The final update statement of the for loop exceeds the array range, the dereference of self->aq_vec[i] is not checked and then leads to the …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 18, 2025
• Unscored —
  CVE-2023-52933

  Squashfs: fix handling and sanity checking of xattr_ids count

  In the Linux kernel, the following vulnerability has been resolved: Squashfs: fix handling and sanity checking of xattr_ids count A Sysbot [1] corrupted filesystem exposes two flaws in the handling and sanity checking of the xattr_ids count in the filesystem.…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Mar 27, 2025
• Unscored —
  CVE-2025-22104

  ibmvnic: Use kernel helpers for hex dumps

  In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Use kernel helpers for hex dumps Previously, when the driver was printing hex dumps, the buffer was cast to an 8 byte long and printed using string formatters. If the buffer size was…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Apr 16, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2347899
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2348154
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2348596
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2355476
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2357142
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2360199
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2360265
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2363305
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2363432
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2373683
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_10830.json
• report
  https://access.redhat.com/security/cve/CVE-2022-49122
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-49122
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-49122
• article
  https://lore.kernel.org/linux-cve-announce/2025022604-CVE-2022-49122-b139@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2022-49395
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-49395
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-49395
• article
  https://lore.kernel.org/linux-cve-announce/2025022650-CVE-2022-49395-7419@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2022-49846
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-49846
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-49846
• article
  https://kernelcve.org/list/?q=CVE-2022-49846
• article
  https://lore.kernel.org/linux-cve-announce/2025050142-CVE-2022-49846-728c@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2022-50066
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-50066
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-50066
• article
  https://lore.kernel.org/linux-cve-announce/2025061851-CVE-2022-50066-a2ad@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2023-52933
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-52933
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-52933
• article
  https://lore.kernel.org/linux-cve-announce/2025032720-CVE-2023-52933-f292@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-21759
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-21759
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-21759
• article
  https://kernelcve.org/list/?q=CVE-2025-21759
• article
  https://lore.kernel.org/linux-cve-announce/2025022604-CVE-2025-21759-ad7c@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-22004