========================================================================== Ubuntu Security Notice USN-8493-2 July 02, 2026
linux-oracle-5.15 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-oracle-5.15: Linux kernel for Oracle Cloud systems
Details:
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- RISC-V architecture;
- Cryptographic API;
- InfiniBand drivers;
- IOMMU subsystem;
- Network drivers;
- STMicroelectronics network drivers;
- NVME drivers;
- x86 platform drivers;
- SCSI subsystem;
- SPI subsystem;
- TCM subsystem;
- USB over IP driver;
- File systems infrastructure;
- HFS+ file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- IPv6 networking;
- Tracing infrastructure;
- Timer subsystem;
- B.A.T.M.A.N. meshing protocol;
- Bluetooth subsystem;
- Ethernet bridge;
- Ceph Core library;
- IPv4 networking;
- MAC80211 subsystem;
- Multipath TCP;
- Netfilter;
- RxRPC session sockets;
- SMC sockets;
- Sun RPC protocol;
- X.25 network layer;
- AMD SoC Alsa drivers;
- KVM subsystem;
(CVE-2022-48816, CVE-2023-53673, CVE-2025-37778, CVE-2025-37822,
CVE-2025-37924, CVE-2025-38201, CVE-2025-40082, CVE-2025-68214,
CVE-2025-68263, CVE-2025-71089, CVE-2025-71220, CVE-2025-71222,
CVE-2025-71224, CVE-2026-23176, CVE-2026-23180, CVE-2026-23182,
CVE-2026-23190, CVE-2026-23193, CVE-2026-23198, CVE-2026-23202,
CVE-2026-23206, CVE-2026-23216, CVE-2026-23256, CVE-2026-23257,
CVE-2026-23258, CVE-2026-23262, CVE-2026-23272, CVE-2026-23278,
CVE-2026-23428, CVE-2026-23450, CVE-2026-23455, CVE-2026-31402,
CVE-2026-31418, CVE-2026-31478, CVE-2026-31607, CVE-2026-31637,
CVE-2026-31649, CVE-2026-31657, CVE-2026-31659, CVE-2026-31668,
CVE-2026-31669, CVE-2026-31682, CVE-2026-31685, CVE-2026-43011,
CVE-2026-43037, CVE-2026-43038, CVE-2026-43071, CVE-2026-43114,
CVE-2026-43117, CVE-2026-43186, CVE-2026-43304, CVE-2026-43341,
CVE-2026-43383, CVE-2026-43406, CVE-2026-43407, CVE-2026-43414,
CVE-2026-43493, CVE-2026-43501, CVE-2026-45988, CVE-2026-46043,
CVE-2026-46119, CVE-2026-46135, CVE-2026-46195, CVE-2026-46243)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS
linux-image-5.15.0-1108-oracle 5.15.0-1108.114~20.04.1
Available with Ubuntu Pro
linux-image-oracle 5.15.0.1108.114~20.04.1
Available with Ubuntu Pro
linux-image-oracle-5.15 5.15.0.1108.114~20.04.1
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://ubuntu.com/security/notices/USN-8493-2
https://ubuntu.com/security/notices/USN-8493-1
CVE-2022-48816, CVE-2023-53673, CVE-2025-37778, CVE-2025-37822,
CVE-2025-37924, CVE-2025-38201, CVE-2025-40082, CVE-2025-68214,
CVE-2025-68263, CVE-2025-71089, CVE-2025-71220, CVE-2025-71222,
CVE-2025-71224, CVE-2026-23176, CVE-2026-23180, CVE-2026-23182,
CVE-2026-23190, CVE-2026-23193, CVE-2026-23198, CVE-2026-23202,
CVE-2026-23206, CVE-2026-23216, CVE-2026-23256, CVE-2026-23257,
CVE-2026-23258, CVE-2026-23262, CVE-2026-23272, CVE-2026-23278,
CVE-2026-23428, CVE-2026-23450, CVE-2026-23455, CVE-2026-31402,
CVE-2026-31418, CVE-2026-31478, CVE-2026-31607, CVE-2026-31637,
CVE-2026-31649, CVE-2026-31657, CVE-2026-31659, CVE-2026-31668,
CVE-2026-31669, CVE-2026-31682, CVE-2026-31685, CVE-2026-43011,
CVE-2026-43037, CVE-2026-43038, CVE-2026-43071, CVE-2026-43114,
CVE-2026-43117, CVE-2026-43186, CVE-2026-43304, CVE-2026-43341,
CVE-2026-43383, CVE-2026-43406, CVE-2026-43407, CVE-2026-43414,
CVE-2026-43493, CVE-2026-43501, CVE-2026-45988, CVE-2026-46043,
CVE-2026-46119, CVE-2026-46135, CVE-2026-46195, CVE-2026-46243
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