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Vulnerability · Published Jul 12, 2024 · Assigned by Linux

CVE-2024-39494ima: Fix use-after-free on a dentry's dname.name

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 24% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 76.5% 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: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.99-1DEBIAN-CVE-2024-39494
Debian:12linux6.1.99-1DSA-5731-1
Debian:13linux6.9.7-1DEBIAN-CVE-2024-39494
Debian:14linux6.9.7-1DEBIAN-CVE-2024-39494
Ubuntu:22.04:LTSlinux5.15.0-122.132UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux5.15.0-122.132USN-7021-1
Ubuntu:24.04:LTSlinux6.8.0-44.44UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-aws5.15.0-1070.76USN-7021-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1070.76UBUNTU-CVE-2024-39494
Ubuntu:24.04:LTSlinux-aws6.8.0-1015.16UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1015.16~22.04.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-azure5.15.0-1073.82UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-azure5.15.0-1073.82USN-7021-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1014.16UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1014.16~22.04.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1073.82.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1073.82.1USN-7021-5
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gcp5.15.0-1069.77UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gcp5.15.0-1069.77USN-7021-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1014.16UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1014.16~22.04.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gke5.15.0-1067.73UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gke5.15.0-1067.73USN-7021-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1010.13UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1053.60UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1053.60USN-7021-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-45.45~22.04.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-ibm5.15.0-1063.66UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-ibm5.15.0-1063.66USN-7021-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1012.12UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1012.12~22.04.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1065.71USN-7021-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1065.71UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-kvm5.15.0-1067.72USN-7021-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1067.72UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-122.132UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-122.132USN-7021-3
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-44.44.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-44.44.1~22.04.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1065.66UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1065.66USN-7021-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1013.14UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-39494
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1013.14.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1030.30UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1019.19UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1012.12UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-oracle5.15.0-1068.74UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-oracle5.15.0-1068.74USN-7021-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1012.12UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1012.12~22.04.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-raspi5.15.0-1063.66USN-7021-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1063.66UBUNTU-CVE-2024-39494
Ubuntu:24.04:LTSlinux-raspi6.8.0-1011.12UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-39494
Ubuntu:24.04:LTSlinux-riscv6.8.0-44.44.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-44.44.1~22.04.1UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1036.40UBUNTU-CVE-2024-39494
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1036.40USN-7021-2

Affected products (as reported)

VendorProductVersions
Linux Linux 2fe5d6def1672ae6635dd71867bf36dcfaa7434b – before 480afcbeb7aaaa22677d3dd48ec590b441eaac1a2fe5d6def1672ae6635dd71867bf36dcfaa7434b – before edf287bc610b18d7a9c0c0c1cb2e97b9348c71bb2fe5d6def1672ae6635dd71867bf36dcfaa7434b – before 0b31e28fbd773aefb6164687e0767319b81998292fe5d6def1672ae6635dd71867bf36dcfaa7434b – before 7fb374981e31c193b1152ed8d3b0a95b671330d42fe5d6def1672ae6635dd71867bf36dcfaa7434b – before dd431c3ac1fc34a9268580dd59ad3e3c76b32a8c2fe5d6def1672ae6635dd71867bf36dcfaa7434b – before a78a6f0da57d058e2009e9958fdcef66f165208c2fe5d6def1672ae6635dd71867bf36dcfaa7434b – before be84f32bb2c981ca670922e047cdde1488b233de
Linux Linux 3.7

References