Linux kernel vulnerabilities

Releases

• Ubuntu 22.10
• Ubuntu 22.04 LTS

Packages

• linux - Linux kernel
• linux-allwinner - Linux kernel for Allwinner processors
• linux-allwinner-5.19 - Linux kernel for Allwinner processors
• linux-aws - Linux kernel for Amazon Web Services (AWS) systems
• linux-aws-5.19 - Linux kernel for Amazon Web Services (AWS) systems
• linux-azure - Linux kernel for Microsoft Azure Cloud systems
• linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gcp-5.19 - Linux kernel for Google Cloud Platform (GCP) systems
• linux-hwe-5.19 - Linux hardware enablement (HWE) kernel
• linux-ibm - Linux kernel for IBM cloud systems
• linux-kvm - Linux kernel for cloud environments
• linux-lowlatency - Linux low latency kernel
• linux-oracle - Linux kernel for Oracle Cloud systems
• linux-raspi - Linux kernel for Raspberry Pi systems
• linux-starfive - Linux kernel for StarFive processors
• linux-starfive-5.19 - Linux kernel for StarFive processors

Details

Hangyu Hua discovered that the Flower classifier implementation in the
Linux kernel contained an out-of-bounds write vulnerability. An attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2023-35788, LP: #2023577)

Xingyuan Mo and Gengjia Chen discovered that the io_uring subsystem in the
Linux kernel did not properly handle locking when IOPOLL mode is being
used. A local attacker could use this to cause a denial of service (system
crash). (CVE-2023-2430)

It was discovered that for some Intel processors the INVLPG instruction
implementation did not properly flush global TLB entries when PCIDs are
enabled. An attacker could use this to expose sensitive information
(kernel memory) or possibly cause undesired behaviors. (LP: #2023220)