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Medium RLSA-2025:9348 3 CVEs

Moderate: kernel security update

Published Oct 3, 2025 · Updated Oct 8, 2025

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: proc: fix UAF in proc_get_inode() (CVE-2025-21999)

* kernel: ext4: fix off-by-one error in do_split (CVE-2025-23150)

* kernel: ext4: ignore xattrs past end (CVE-2025-37738)

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 10 kernel 0:6.12.0-55.18.1.el10_0

Vulnerabilities 3

  • High 7.8

    proc: fix UAF in proc_get_inode()

    In the Linux kernel, the following vulnerability has been resolved: proc: fix UAF in proc_get_inode() Fix race between rmmod and /proc/XXX's inode instantiation. The bug is that pde->proc_ops don't belong to /proc, it belongs to a module, therefore dereferenc…

  • High 7.8

    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…

  • High 7.8

    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: ==================…

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2357134
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2363268
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2363305