Log in Start free

Vulnerability · Published Jul 16, 2024 · Assigned by Linux

CVE-2022-48804vt_ioctl: fix array_index_nospec in vt_setactivate

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 76.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: vt_ioctl: fix array_index_nospec in vt_setactivate array_index_nospec ensures that an out-of-bounds value is set to zero on the transient path. Decreasing the value by one afterwards causes a transient integer underflow. vsa.console should be decreased first and then sanitized with array_index_nospec. Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU Amsterdam.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-abi-stablelists4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-core4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-cross-headers4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-debug4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-debug-core4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-debug-devel4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-debug-modules4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-devel4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-doc4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-headers4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-modules4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-modules-extra4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-rt4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-core4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-debug4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-debug-core4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-debug-kvm4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-devel4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-kvm4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-modules4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.22.1.rt7.363.el8_10ALSA-2024:7001
AlmaLinux:8kernel-tools4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-tools-libs4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-zfcpdump4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8perf4.18.0-553.22.1.el8_10ALSA-2024:7000
AlmaLinux:8python3-perf4.18.0-553.22.1.el8_10ALSA-2024:7000
Debian:12linux5.16.10-1DEBIAN-CVE-2022-48804
Debian:13linux5.16.10-1DEBIAN-CVE-2022-48804
Debian:14linux5.16.10-1DEBIAN-CVE-2022-48804
Rocky Linux:8kernel0:4.18.0-553.22.1.el8_10RLSA-2024:7000
Rocky Linux:8kernel-rt0:4.18.0-553.22.1.rt7.363.el8_10RLSA-2024:7001
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-48804
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-48804
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-48804

Affected products (as reported)

VendorProductVersions
Linux Linux 0ec459ec174031fad02a55e622cf2fc0d2e75a25 – before 830c5aa302ec16b4ee641aec769462c37f802c904334a6ae867aa12f01c1755368fd0de4c926ac75 – before 2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0e97267cb4d1ee01ca0929638ec0fcbb0904f903d – before 170325aba4608bde3e7d21c9c19b7bc266ac0885e97267cb4d1ee01ca0929638ec0fcbb0904f903d – before ae3d57411562260ee3f4fd5e875f410002341104e97267cb4d1ee01ca0929638ec0fcbb0904f903d – before 778302ca09498b448620edd372dc908bebf80bdfe97267cb4d1ee01ca0929638ec0fcbb0904f903d – before ffe54289b02e9c732d6f04c8ebbe3b2d90d32118e97267cb4d1ee01ca0929638ec0fcbb0904f903d – before 6550bdf52846f85a2a3726a5aa0c7c4399f2fc02e97267cb4d1ee01ca0929638ec0fcbb0904f903d – before 61cc70d9e8ef5b042d4ed87994d20100ec8896d9
Linux Linux 4.19

References