==========================================================================
Ubuntu Security Notice USN-7008-1
September 13, 2024

linux-lowlatency-hwe-6.8 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-lowlatency-hwe-6.8: Linux low latency kernel

Details:

Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2024-23848)

It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash). (CVE-2024-40902)

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;
  - MIPS architecture;
  - PA-RISC architecture;
  - PowerPC architecture;
  - RISC-V architecture;
  - User-Mode Linux (UML);
  - x86 architecture;
  - Block layer subsystem;
  - ACPI drivers;
  - Drivers core;
  - Null block device driver;
  - Character device driver;
  - TPM device driver;
  - Clock framework and drivers;
  - CPU frequency scaling framework;
  - Hardware crypto device drivers;
  - CXL (Compute Express Link) drivers;
  - Buffer Sharing and Synchronization framework;
  - DMA engine subsystem;
  - EFI core;
  - FPGA Framework;
  - GPU drivers;
  - Greybus drivers;
  - HID subsystem;
  - HW tracing;
  - I2C subsystem;
  - IIO subsystem;
  - InfiniBand drivers;
  - Input Device (Mouse) drivers;
  - Mailbox framework;
  - Media drivers;
  - Microchip PCI driver;
  - VMware VMCI Driver;
  - MMC subsystem;
  - Network drivers;
  - PCI subsystem;
  - x86 platform drivers;
  - PTP clock framework;
  - S/390 drivers;
  - SCSI drivers;
  - SoundWire subsystem;
  - Sonic Silicon Backplane drivers;
  - Greybus lights staging drivers;
  - Thermal drivers;
  - TTY drivers;
  - USB subsystem;
  - VFIO drivers;
  - Framebuffer layer;
  - Watchdog drivers;
  - 9P distributed file system;
  - BTRFS file system;
  - File systems infrastructure;
  - Ext4 file system;
  - F2FS file system;
  - JFS file system;
  - Network file system server daemon;
  - NILFS2 file system;
  - NTFS3 file system;
  - SMB network file system;
  - Tracing file system;
  - IOMMU subsystem;
  - Tracing infrastructure;
  - io_uring subsystem;
  - Core kernel;
  - BPF subsystem;
  - Kernel debugger infrastructure;
  - DMA mapping infrastructure;
  - IRQ subsystem;
  - Memory management;
  - 9P file system network protocol;
  - Amateur Radio drivers;
  - B.A.T.M.A.N. meshing protocol;
  - Ethernet bridge;
  - Networking core;
  - Ethtool driver;
  - IPv4 networking;
  - IPv6 networking;
  - MAC80211 subsystem;
  - Multipath TCP;
  - Netfilter;
  - NET/ROM layer;
  - NFC subsystem;
  - Network traffic control;
  - Sun RPC protocol;
  - TIPC protocol;
  - TLS protocol;
  - Unix domain sockets;
  - Wireless networking;
  - XFRM subsystem;
  - AppArmor security module;
  - Integrity Measurement Architecture(IMA) framework;
  - Landlock security;
  - Linux Security Modules (LSM) Framework;
  - SELinux security module;
  - Simplified Mandatory Access Control Kernel framework;
  - ALSA framework;
  - HD-audio driver;
  - SOF drivers;
  - KVM core;
(CVE-2024-38623, CVE-2024-38662, CVE-2024-39484, CVE-2024-42148,
CVE-2024-39493, CVE-2024-38637, CVE-2024-40962, CVE-2024-36281,
CVE-2024-40922, CVE-2024-40958, CVE-2024-40920, CVE-2024-40986,
CVE-2024-40929, CVE-2024-40967, CVE-2024-39296, CVE-2024-40900,
CVE-2024-40995, CVE-2024-40974, CVE-2024-40942, CVE-2024-39464,
CVE-2024-40916, CVE-2024-40952, CVE-2024-40997, CVE-2024-41004,
CVE-2024-40970, CVE-2024-40911, CVE-2024-40972, CVE-2024-36477,
CVE-2024-40996, CVE-2024-40988, CVE-2024-38619, CVE-2024-40998,
CVE-2024-38627, CVE-2024-36971, CVE-2024-37021, CVE-2024-40989,
CVE-2024-40947, CVE-2024-40957, CVE-2024-39508, CVE-2024-41005,
CVE-2024-40931, CVE-2024-34777, CVE-2024-38633, CVE-2024-38663,
CVE-2024-36288, CVE-2024-40955, CVE-2024-40973, CVE-2024-39483,
CVE-2024-38388, CVE-2024-40976, CVE-2024-38622, CVE-2024-40915,
CVE-2024-38661, CVE-2024-38306, CVE-2024-39507, CVE-2024-38659,
CVE-2024-40980, CVE-2024-39301, CVE-2024-40945, CVE-2024-39461,
CVE-2024-40948, CVE-2024-39465, CVE-2024-38667, CVE-2024-39498,
CVE-2024-39470, CVE-2024-38629, CVE-2024-40984, CVE-2024-38381,
CVE-2024-40903, CVE-2024-38636, CVE-2024-36478, CVE-2023-52884,
CVE-2024-40906, CVE-2024-39371, CVE-2024-38384, CVE-2024-40938,
CVE-2024-36978, CVE-2024-39502, CVE-2024-39291, CVE-2024-39473,
CVE-2024-40956, CVE-2024-38618, CVE-2024-40992, CVE-2024-40944,
CVE-2024-39495, CVE-2024-39494, CVE-2024-38632, CVE-2024-38390,
CVE-2024-39497, CVE-2024-40899, CVE-2024-40939, CVE-2024-36481,
CVE-2024-40977, CVE-2024-40961, CVE-2024-33847, CVE-2024-40963,
CVE-2024-39276, CVE-2024-40902, CVE-2024-40971, CVE-2024-39485,
CVE-2024-40930, CVE-2024-40985, CVE-2024-39501, CVE-2024-40960,
CVE-2024-39503, CVE-2024-40909, CVE-2024-36973, CVE-2024-36489,
CVE-2024-40928, CVE-2024-34027, CVE-2024-40914, CVE-2024-40925,
CVE-2024-39500, CVE-2024-39292, CVE-2024-40987, CVE-2024-39480,
CVE-2024-40934, CVE-2024-36270, CVE-2024-38780, CVE-2024-39479,
CVE-2024-39462, CVE-2024-40966, CVE-2024-39510, CVE-2024-39471,
CVE-2024-39505, CVE-2024-37078, CVE-2024-40913, CVE-2024-37356,
CVE-2024-38624, CVE-2024-40917, CVE-2024-39506, CVE-2024-40943,
CVE-2024-38625, CVE-2024-38664, CVE-2024-40901, CVE-2024-40964,
CVE-2024-40924, CVE-2024-40918, CVE-2024-36974, CVE-2022-48772,
CVE-2024-39509, CVE-2024-38385, CVE-2024-40994, CVE-2024-39469,
CVE-2024-40905, CVE-2024-35247, CVE-2024-41006, CVE-2024-40965,
CVE-2024-40932, CVE-2024-39491, CVE-2024-39499, CVE-2024-40908,
CVE-2024-36972, CVE-2024-37026, CVE-2024-40968, CVE-2024-36244,
CVE-2024-39468, CVE-2024-39489, CVE-2024-33621, CVE-2024-40951,
CVE-2024-39481, CVE-2024-40959, CVE-2024-40935, CVE-2024-40927,
CVE-2024-40912, CVE-2024-36479, CVE-2024-39467, CVE-2024-34030,
CVE-2024-41003, CVE-2024-40936, CVE-2024-39474, CVE-2024-40969,
CVE-2024-40904, CVE-2024-40937, CVE-2024-40978, CVE-2024-40983,
CVE-2024-40910, CVE-2024-39466, CVE-2024-40949, CVE-2024-39478,
CVE-2024-40999, CVE-2024-33619, CVE-2024-38621, CVE-2024-40981,
CVE-2024-39475, CVE-2024-40954, CVE-2024-41000, CVE-2024-39496,
CVE-2024-40926, CVE-2024-41040, CVE-2024-39298, CVE-2024-38635,
CVE-2024-39492, CVE-2024-38628, CVE-2024-39504, CVE-2024-42078,
CVE-2024-41001, CVE-2024-39463, CVE-2024-36286, CVE-2024-36484,
CVE-2024-40990, CVE-2024-31076, CVE-2024-38630, CVE-2024-40979,
CVE-2024-36015, CVE-2024-40923, CVE-2024-40921, CVE-2024-41002,
CVE-2024-40940, CVE-2024-40975, CVE-2024-40953, CVE-2024-40933,
CVE-2024-37354, CVE-2024-40982, CVE-2024-38634, CVE-2024-39490,
CVE-2024-39277, CVE-2024-39488, CVE-2024-40941, CVE-2024-32936,
CVE-2024-40919)

Update instructions:

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

Ubuntu 22.04 LTS
  linux-image-6.8.0-44-lowlatency  6.8.0-44.44.1~22.04.1
  linux-image-6.8.0-44-lowlatency-64k  6.8.0-44.44.1~22.04.1
  linux-image-lowlatency-64k-hwe-22.04  6.8.0-44.44.1~22.04.1
  linux-image-lowlatency-hwe-22.04  6.8.0-44.44.1~22.04.1

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-7008-1
  CVE-2022-48772, CVE-2023-52884, CVE-2024-23848, CVE-2024-31076,
  CVE-2024-32936, CVE-2024-33619, CVE-2024-33621, CVE-2024-33847,
  CVE-2024-34027, CVE-2024-34030, CVE-2024-34777, CVE-2024-35247,
  CVE-2024-36015, CVE-2024-36244, CVE-2024-36270, CVE-2024-36281,
  CVE-2024-36286, CVE-2024-36288, CVE-2024-36477, CVE-2024-36478,
  CVE-2024-36479, CVE-2024-36481, CVE-2024-36484, CVE-2024-36489,
  CVE-2024-36971, CVE-2024-36972, CVE-2024-36973, CVE-2024-36974,
  CVE-2024-36978, CVE-2024-37021, CVE-2024-37026, CVE-2024-37078,
  CVE-2024-37354, CVE-2024-37356, CVE-2024-38306, CVE-2024-38381,
  CVE-2024-38384, CVE-2024-38385, CVE-2024-38388, CVE-2024-38390,
  CVE-2024-38618, CVE-2024-38619, CVE-2024-38621, CVE-2024-38622,
  CVE-2024-38623, CVE-2024-38624, CVE-2024-38625, CVE-2024-38627,
  CVE-2024-38628, CVE-2024-38629, CVE-2024-38630, CVE-2024-38632,
  CVE-2024-38633, CVE-2024-38634, CVE-2024-38635, CVE-2024-38636,
  CVE-2024-38637, CVE-2024-38659, CVE-2024-38661, CVE-2024-38662,
  CVE-2024-38663, CVE-2024-38664, CVE-2024-38667, CVE-2024-38780,
  CVE-2024-39276, CVE-2024-39277, CVE-2024-39291, CVE-2024-39292,
  CVE-2024-39296, CVE-2024-39298, CVE-2024-39301, CVE-2024-39371,
  CVE-2024-39461, CVE-2024-39462, CVE-2024-39463, CVE-2024-39464,
  CVE-2024-39465, CVE-2024-39466, CVE-2024-39467, CVE-2024-39468,
  CVE-2024-39469, CVE-2024-39470, CVE-2024-39471, CVE-2024-39473,
  CVE-2024-39474, CVE-2024-39475, CVE-2024-39478, CVE-2024-39479,
  CVE-2024-39480, CVE-2024-39481, CVE-2024-39483, CVE-2024-39484,
  CVE-2024-39485, CVE-2024-39488, CVE-2024-39489, CVE-2024-39490,
  CVE-2024-39491, CVE-2024-39492, CVE-2024-39493, CVE-2024-39494,
  CVE-2024-39495, CVE-2024-39496, CVE-2024-39497, CVE-2024-39498,
  CVE-2024-39499, CVE-2024-39500, CVE-2024-39501, CVE-2024-39502,
  CVE-2024-39503, CVE-2024-39504, CVE-2024-39505, CVE-2024-39506,
  CVE-2024-39507, CVE-2024-39508, CVE-2024-39509, CVE-2024-39510,
  CVE-2024-40899, CVE-2024-40900, CVE-2024-40901, CVE-2024-40902,
  CVE-2024-40903, CVE-2024-40904, CVE-2024-40905, CVE-2024-40906,
  CVE-2024-40908, CVE-2024-40909, CVE-2024-40910, CVE-2024-40911,
  CVE-2024-40912, CVE-2024-40913, CVE-2024-40914, CVE-2024-40915,
  CVE-2024-40916, CVE-2024-40917, CVE-2024-40918, CVE-2024-40919,
  CVE-2024-40920, CVE-2024-40921, CVE-2024-40922, CVE-2024-40923,
  CVE-2024-40924, CVE-2024-40925, CVE-2024-40926, CVE-2024-40927,
  CVE-2024-40928, CVE-2024-40929, CVE-2024-40930, CVE-2024-40931,
  CVE-2024-40932, CVE-2024-40933, CVE-2024-40934, CVE-2024-40935,
  CVE-2024-40936, CVE-2024-40937, CVE-2024-40938, CVE-2024-40939,
  CVE-2024-40940, CVE-2024-40941, CVE-2024-40942, CVE-2024-40943,
  CVE-2024-40944, CVE-2024-40945, CVE-2024-40947, CVE-2024-40948,
  CVE-2024-40949, CVE-2024-40951, CVE-2024-40952, CVE-2024-40953,
  CVE-2024-40954, CVE-2024-40955, CVE-2024-40956, CVE-2024-40957,
  CVE-2024-40958, CVE-2024-40959, CVE-2024-40960, CVE-2024-40961,
  CVE-2024-40962, CVE-2024-40963, CVE-2024-40964, CVE-2024-40965,
  CVE-2024-40966, CVE-2024-40967, CVE-2024-40968, CVE-2024-40969,
  CVE-2024-40970, CVE-2024-40971, CVE-2024-40972, CVE-2024-40973,
  CVE-2024-40974, CVE-2024-40975, CVE-2024-40976, CVE-2024-40977,
  CVE-2024-40978, CVE-2024-40979, CVE-2024-40980, CVE-2024-40981,
  CVE-2024-40982, CVE-2024-40983, CVE-2024-40984, CVE-2024-40985,
  CVE-2024-40986, CVE-2024-40987, CVE-2024-40988, CVE-2024-40989,
  CVE-2024-40990, CVE-2024-40992, CVE-2024-40994, CVE-2024-40995,
  CVE-2024-40996, CVE-2024-40997, CVE-2024-40998, CVE-2024-40999,
  CVE-2024-41000, CVE-2024-41001, CVE-2024-41002, CVE-2024-41003,
  CVE-2024-41004, CVE-2024-41005, CVE-2024-41006, CVE-2024-41040,
  CVE-2024-42078, CVE-2024-42148

Package Information:
  https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-44.44.1~22.04.1