[El-errata] New Ksplice updates for UEKR7 5.15.0 on OL8 and OL9 (ELSA-2025-20520)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2025-20520 can now be patched using Ksplice
CVEs: CVE-2018-3646 CVE-2023-6931 CVE-2025-37798 CVE-2025-37890 CVE-2025-37932
CVE-2025-37953 CVE-2025-38000 CVE-2025-38001 CVE-2025-38035 CVE-2025-38051 CVE-
2025-38052 CVE-2025-38058 CVE-2025-38068 CVE-2025-38075 CVE-2025-38077 CVE-
2025-38079 CVE-2025-38177 CVE-2025-38273 CVE-2025-38350

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2025-20520.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2025-20520.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR7 5.15.0 on
OL8 and OL9 install these updates.

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


DESCRIPTION

* CVE-2023-6931: Privilege escalation in Kernel Performance Events.

Orabug: 36261486


* CVE-2025-37798, CVE-2025-38177, CVE-2025-37932, CVE-2025-37953: Use-after-
free in multiple network schedulers.

* CVE-2025-37890, CVE-2025-38000, CVE-2025-38001, CVE-2025-38350: Use-after-
free in HFSC network scheduler.

* CVE-2025-38035: Null pointer dereference in NVMe Target subsystem.

* CVE-2025-38051: Use-after-free in SMB/CIFS client driver.

* CVE-2025-38052, CVE-2025-38273: Use-after-free in TIPC encryption driver.

* CVE-2025-38058: Reference count leak in namespace management code.

* CVE-2025-38068: Out-of-bounds memory access in LZO compression algorithm
driver.

* CVE-2025-38075: Null pointer dereference in iSCSI Target Mode Stack driver.

* CVE-2025-38077: Out-of-bounds memory access in Dell WMI-based Systems
management driver.

* CVE-2025-38079: Use-after-free in hash algorithms interface layer.

* Deadlock in hardware performance counter for perf.

Orabug: 38178527


* Guest crash in APIC driver for KVM on x86.

Orabug: 38195091


* Improved fix for CVE-2018-3646: L1 Terminal Fault Reloaded.

* Note: Oracle has determined some CVEs are not applicable.

The kernel is not affected by the following CVEs
since the code under consideration is not compiled.

CVE-2025-38043, CVE-2025-38065


SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.