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Vulnerability · Published Jul 12, 2024 · Assigned by Linux

CVE-2024-39497drm/shmem-helper: Fix BUG_ON() on mmap(PROT_WRITE, MAP_PRIVATE)

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 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 80.0% 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: drm/shmem-helper: Fix BUG_ON() on mmap(PROT_WRITE, MAP_PRIVATE) Lack of check for copy-on-write (COW) mapping in drm_gem_shmem_mmap allows users to call mmap with PROT_WRITE and MAP_PRIVATE flag causing a kernel panic due to BUG_ON in vmf_insert_pfn_prot: BUG_ON((vma->vm_flags & VM_PFNMAP) && is_cow_mapping(vma->vm_flags)); Return -EINVAL early if COW mapping is detected. This bug affects all drm drivers using default shmem helpers. It can be reproduced by this simple example: void *ptr = mmap(0, size, PROT_WRITE, MAP_PRIVATE, fd, mmap_offset); ptr[0] = 0;

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.115-1DEBIAN-CVE-2024-39497
Debian:13linux6.9.7-1DEBIAN-CVE-2024-39497
Debian:14linux6.9.7-1DEBIAN-CVE-2024-39497
Ubuntu:22.04:LTSlinux5.15.0-133.144UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux5.15.0-133.144USN-7288-1
Ubuntu:24.04:LTSlinux6.8.0-44.44UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-aws5.15.0-1078.85UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-aws5.15.0-1078.85USN-7308-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1015.16UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1015.16~22.04.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-azure5.15.0-1081.90UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-azure5.15.0-1081.90USN-7289-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1014.16UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1014.16~22.04.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1081.90.1USN-7289-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1081.90.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-gcp5.15.0-1077.86USN-7291-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1077.86UBUNTU-CVE-2024-39497
Ubuntu:24.04:LTSlinux-gcp6.8.0-1014.16UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1014.16~22.04.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-gke5.15.0-1075.81UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-gke5.15.0-1075.81USN-7291-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1010.13UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1060.68UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1060.68USN-7289-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-45.45~22.04.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-ibm5.15.0-1070.73UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-ibm5.15.0-1070.73USN-7289-3
Ubuntu:24.04:LTSlinux-ibm6.8.0-1012.12UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1012.12~22.04.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1073.79USN-7289-4
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1073.79UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-kvm5.15.0-1076.81UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-kvm5.15.0-1076.81USN-7388-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-133.143USN-7288-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-133.143UBUNTU-CVE-2024-39497
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-44.44.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-44.44.1~22.04.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1072.73UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1072.73USN-7289-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1013.14UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-39497
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1013.14.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1033.33UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1033.33USN-7389-1
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1021.21USN-7389-1
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1021.21UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1012.12UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-oracle5.15.0-1075.81UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-oracle5.15.0-1075.81USN-7289-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1012.12UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1012.12~22.04.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-raspi5.15.0-1072.75UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-raspi5.15.0-1072.75USN-7305-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1011.12UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-39497
Ubuntu:24.04:LTSlinux-riscv6.8.0-44.44.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-44.44.1~22.04.1UBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-39497
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1044.48USN-7390-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1044.48UBUNTU-CVE-2024-39497

Affected products (as reported)

VendorProductVersions
Linux Linux 2194a63a818db71065ebe09c8104f5f021ca4e7b – before a508a102edf8735adc9bb73d37dd13c38d1a1b102194a63a818db71065ebe09c8104f5f021ca4e7b – before 3ae63a8c1685e16958560ec08d30defdc5b9cca02194a63a818db71065ebe09c8104f5f021ca4e7b – before 2219e5f97244b79c276751a1167615b9714db1b02194a63a818db71065ebe09c8104f5f021ca4e7b – before 1b4a8b89bf6787090b56424d269bf84ba00c32632194a63a818db71065ebe09c8104f5f021ca4e7b – before 03c71c42809ef4b17f5d874cdb2d3bf40e847b862194a63a818db71065ebe09c8104f5f021ca4e7b – before 39bc27bd688066a63e56f7f64ad34fae03fbe3b8
Linux Linux 5.2

References