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Vulnerability · Published Jun 21, 2024 · Assigned by Linux

CVE-2024-38630watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger

High 7.8

In plain English

A high-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 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.3%top 83.4% 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: watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger When the cpu5wdt module is removing, the origin code uses del_timer() to de-activate the timer. If the timer handler is running, del_timer() could not stop it and will return directly. If the port region is released by release_region() and then the timer handler cpu5wdt_trigger() calls outb() to write into the region that is released, the use-after-free bug will happen. Change del_timer() to timer_shutdown_sync() in order that the timer handler could be finished before the port region is released.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2024-38630
Debian:13linux6.9.7-1DEBIAN-CVE-2024-38630
Debian:14linux6.9.7-1DEBIAN-CVE-2024-38630
Ubuntu:22.04:LTSlinux5.15.0-124.134USN-7072-1
Ubuntu:22.04:LTSlinux5.15.0-124.134UBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux6.8.0-44.44UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-aws5.15.0-1071.77UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-aws5.15.0-1071.77USN-7072-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1015.16UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1015.16~22.04.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-azure5.15.0-1074.83UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-azure5.15.0-1074.83USN-7076-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1014.16UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1014.16~22.04.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1076.85.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-gcp5.15.0-1070.78USN-7072-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1070.78UBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux-gcp6.8.0-1014.16UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1014.16~22.04.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-gke5.15.0-1068.74USN-7072-2
Ubuntu:22.04:LTSlinux-gke5.15.0-1068.74UBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux-gke6.8.0-1010.13UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1054.61USN-7072-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1054.61UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-45.45~22.04.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-ibm5.15.0-1064.67UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-ibm5.15.0-1064.67USN-7072-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1012.12UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1012.12~22.04.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1066.72UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1066.72USN-7072-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1068.73USN-7072-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1068.73UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-124.134USN-7072-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-124.134UBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-44.44.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-44.44.1~22.04.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1066.67USN-7072-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1066.67UBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1013.14UBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1013.14USN-7005-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1013.14~22.04.1USN-7005-2
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1013.14.1UBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1013.14.1USN-7005-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1030.30UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1019.19UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1012.12UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-oracle5.15.0-1069.75USN-7072-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1069.75UBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux-oracle6.8.0-1012.12UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1012.12~22.04.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-raspi5.15.0-1064.67UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-raspi5.15.0-1064.67USN-7072-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1011.12UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-38630
Ubuntu:24.04:LTSlinux-riscv6.8.0-44.44.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-44.44.1~22.04.1UBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-38630
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1037.41USN-7072-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1037.41UBUNTU-CVE-2024-38630

Affected products (as reported)

VendorProductVersions
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 948ed659c0151a605bd126da1e95f350ec5a79561da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 9abe50e8492d1accd7d8dc17991179472d3d45731da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 9b1c063ffc075abf56f63e55d70b9778ff5343141da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before f19686d616500cd0d47b30cee82392b53f7f784a1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – before 573601521277119f2e2ba5f28ae6e87fc594f4d4
Linux Linux 2.6.12

References