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[USN-7774-3] Linux kernel (Real-time) vulnerabilities

Posted on 25 September 2025
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7774-3
September 25, 2025

linux-intel-iot-realtime, linux-realtime vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-intel-iot-realtime: Linux kernel for Intel IoT Real-time platforms
- linux-realtime: Linux kernel for Real-time 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:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- ACPI drivers;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- ATA over ethernet (AOE) driver;
- Network block device driver;
- Bus devices;
- Clock framework and drivers;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EDAC drivers;
- GPU drivers;
- HID subsystem;
- InfiniBand drivers;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- VMware VMCI Driver;
- MMC subsystem;
- MTD block device drivers;
- Network drivers;
- Pin controllers subsystem;
- x86 platform drivers;
- PTP clock framework;
- RapidIO drivers;
- Voltage and Current Regulator drivers;
- Remote Processor subsystem;
- S/390 drivers;
- SCSI subsystem;
- ASPEED SoC drivers;
- TCM subsystem;
- Thermal drivers;
- Thunderbolt and USB4 drivers;
- TTY drivers;
- UFS subsystem;
- USB Gadget drivers;
- Renesas USBHS Controller drivers;
- USB Type-C support driver;
- Virtio Host (VHOST) subsystem;
- Backlight driver;
- Framebuffer layer;
- BTRFS file system;
- File systems infrastructure;
- Ext4 file system;
- F2FS file system;
- JFFS2 file system;
- JFS file system;
- Network file system (NFS) client;
- Network file system (NFS) server daemon;
- NTFS3 file system;
- DRM display driver;
- Memory Management;
- Mellanox drivers;
- Memory management;
- Netfilter;
- Network sockets;
- IPC subsystem;
- BPF subsystem;
- Perf events;
- Kernel exit() syscall;
- Restartable seuqences system call mechanism;
- Timer subsystem;
- Tracing infrastructure;
- Appletalk network protocol;
- Asynchronous Transfer Mode (ATM) subsystem;
- Networking core;
- IPv6 networking;
- MultiProtocol Label Switching driver;
- NetLabel subsystem;
- Netlink;
- NFC subsystem;
- Open vSwitch;
- Rose network layer;
- RxRPC session sockets;
- Network traffic control;
- TIPC protocol;
- VMware vSockets driver;
- USB sound devices;
(CVE-2025-38399, CVE-2025-38391, CVE-2025-38412, CVE-2025-38393,
CVE-2025-38163, CVE-2025-38167, CVE-2025-38319, CVE-2025-38135,
CVE-2025-37963, CVE-2025-38226, CVE-2025-38147, CVE-2025-38513,
CVE-2025-38161, CVE-2025-38146, CVE-2025-38352, CVE-2025-38458,
CVE-2025-38444, CVE-2025-38430, CVE-2025-38418, CVE-2025-38206,
CVE-2025-38160, CVE-2025-38461, CVE-2025-38465, CVE-2025-38119,
CVE-2025-38459, CVE-2025-38410, CVE-2025-38111, CVE-2025-38222,
CVE-2025-38313, CVE-2025-38285, CVE-2025-38067, CVE-2025-38143,
CVE-2025-38200, CVE-2024-44939, CVE-2025-38219, CVE-2024-26775,
CVE-2025-38090, CVE-2025-38262, CVE-2025-38332, CVE-2025-38345,
CVE-2025-38337, CVE-2025-38403, CVE-2025-38085, CVE-2025-38229,
CVE-2025-38540, CVE-2025-38362, CVE-2025-38384, CVE-2025-38115,
CVE-2025-38136, CVE-2025-38445, CVE-2025-38424, CVE-2025-38328,
CVE-2025-38389, CVE-2025-38428, CVE-2025-38516, CVE-2025-38336,
CVE-2025-38184, CVE-2025-38293, CVE-2025-38346, CVE-2025-38464,
CVE-2025-38251, CVE-2025-38112, CVE-2025-38194, CVE-2025-38375,
CVE-2025-38466, CVE-2025-38157, CVE-2025-38457, CVE-2025-38320,
CVE-2025-38406, CVE-2025-37948, CVE-2025-38145, CVE-2025-38395,
CVE-2025-38218, CVE-2025-38154, CVE-2025-38401, CVE-2025-38103,
CVE-2025-38088, CVE-2025-38298, CVE-2025-38108, CVE-2025-38120,
CVE-2025-38086, CVE-2025-38415, CVE-2025-38443, CVE-2025-38245,
CVE-2025-38400, CVE-2025-38371, CVE-2025-38084, CVE-2022-48703,
CVE-2025-38237, CVE-2025-38324, CVE-2025-38515, CVE-2025-38107,
CVE-2025-38448, CVE-2025-38153, CVE-2025-38342, CVE-2025-38102,
CVE-2025-38173, CVE-2025-38441, CVE-2025-38138, CVE-2025-38257,
CVE-2025-38386, CVE-2025-38514, CVE-2025-38363, CVE-2025-38231,
CVE-2025-38159, CVE-2025-38203, CVE-2025-38344, CVE-2025-38211,
CVE-2025-38286, CVE-2025-38498, CVE-2025-38312, CVE-2025-38420,
CVE-2025-38212, CVE-2025-38122, CVE-2025-38542, CVE-2025-38348,
CVE-2025-38263, CVE-2025-38462, CVE-2025-38204, CVE-2025-38387,
CVE-2025-38439, CVE-2025-38227, CVE-2024-26726, CVE-2025-38074,
CVE-2025-38174, CVE-2025-38326, CVE-2025-38310, CVE-2025-38197,
CVE-2025-37958, CVE-2025-38100, CVE-2025-38305, CVE-2025-38273,
CVE-2025-38181, CVE-2025-38280, CVE-2025-38377, CVE-2025-38249,
CVE-2024-57883, CVE-2025-38460, CVE-2025-38467, CVE-2025-38419,
CVE-2025-21888, CVE-2025-38416)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
linux-image-5.15.0-1085-intel-iot-realtime 5.15.0-1085.87
Available with Ubuntu Pro
linux-image-5.15.0-1092-realtime 5.15.0-1092.101
Available with Ubuntu Pro
linux-image-intel-iot-realtime 5.15.0.1085.89
Available with Ubuntu Pro
linux-image-intel-iot-realtime-5.15 5.15.0.1085.89
Available with Ubuntu Pro
linux-image-realtime 5.15.0.1092.96
Available with Ubuntu Pro
linux-image-realtime-5.15 5.15.0.1092.96
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-7774-3
https://ubuntu.com/security/notices/USN-7774-2
https://ubuntu.com/security/notices/USN-7774-1
CVE-2022-48703, CVE-2024-26726, CVE-2024-26775, CVE-2024-44939,
CVE-2024-57883, CVE-2025-21888, CVE-2025-37948, CVE-2025-37958,
CVE-2025-37963, CVE-2025-38067, CVE-2025-38074, CVE-2025-38084,
CVE-2025-38085, CVE-2025-38086, CVE-2025-38088, CVE-2025-38090,
CVE-2025-38100, CVE-2025-38102, CVE-2025-38103, CVE-2025-38107,
CVE-2025-38108, CVE-2025-38111, CVE-2025-38112, CVE-2025-38115,
CVE-2025-38119, CVE-2025-38120, CVE-2025-38122, CVE-2025-38135,
CVE-2025-38136, CVE-2025-38138, CVE-2025-38143, CVE-2025-38145,
CVE-2025-38146, CVE-2025-38147, CVE-2025-38153, CVE-2025-38154,
CVE-2025-38157, CVE-2025-38159, CVE-2025-38160, CVE-2025-38161,
CVE-2025-38163, CVE-2025-38167, CVE-2025-38173, CVE-2025-38174,
CVE-2025-38181, CVE-2025-38184, CVE-2025-38194, CVE-2025-38197,
CVE-2025-38200, CVE-2025-38203, CVE-2025-38204, CVE-2025-38206,
CVE-2025-38211, CVE-2025-38212, CVE-2025-38218, CVE-2025-38219,
CVE-2025-38222, CVE-2025-38226, CVE-2025-38227, CVE-2025-38229,
CVE-2025-38231, CVE-2025-38237, CVE-2025-38245, CVE-2025-38249,
CVE-2025-38251, CVE-2025-38257, CVE-2025-38262, CVE-2025-38263,
CVE-2025-38273, CVE-2025-38280, CVE-2025-38285, CVE-2025-38286,
CVE-2025-38293, CVE-2025-38298, CVE-2025-38305, CVE-2025-38310,
CVE-2025-38312, CVE-2025-38313, CVE-2025-38319, CVE-2025-38320,
CVE-2025-38324, CVE-2025-38326, CVE-2025-38328, CVE-2025-38332,
CVE-2025-38336, CVE-2025-38337, CVE-2025-38342, CVE-2025-38344,
CVE-2025-38345, CVE-2025-38346, CVE-2025-38348, CVE-2025-38352,
CVE-2025-38362, CVE-2025-38363, CVE-2025-38371, CVE-2025-38375,
CVE-2025-38377, CVE-2025-38384, CVE-2025-38386, CVE-2025-38387,
CVE-2025-38389, CVE-2025-38391, CVE-2025-38393, CVE-2025-38395,
CVE-2025-38399, CVE-2025-38400, CVE-2025-38401, CVE-2025-38403,
CVE-2025-38406, CVE-2025-38410, CVE-2025-38412, CVE-2025-38415,
CVE-2025-38416, CVE-2025-38418, CVE-2025-38419, CVE-2025-38420,
CVE-2025-38424, CVE-2025-38428, CVE-2025-38430, CVE-2025-38439,
CVE-2025-38441, CVE-2025-38443, CVE-2025-38444, CVE-2025-38445,
CVE-2025-38448, CVE-2025-38457, CVE-2025-38458, CVE-2025-38459,
CVE-2025-38460, CVE-2025-38461, CVE-2025-38462, CVE-2025-38464,
CVE-2025-38465, CVE-2025-38466, CVE-2025-38467, CVE-2025-38498,
CVE-2025-38513, CVE-2025-38514, CVE-2025-38515, CVE-2025-38516,
CVE-2025-38540, CVE-2025-38542

Package Information:
https://launchpad.net/ubuntu/+source/linux-intel-iot-realtime/5.15.0-1085.87
https://launchpad.net/ubuntu/+source/linux-realtime/5.15.0-1092.101


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