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Vulnerability · Published Apr 3, 2025 · Assigned by Linux

CVE-2025-21996drm/radeon: fix uninitialized size issue in radeon_vce_cs_parse()

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 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 87.8% 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/radeon: fix uninitialized size issue in radeon_vce_cs_parse() On the off chance that command stream passed from userspace via ioctl() call to radeon_vce_cs_parse() is weirdly crafted and first command to execute is to encode (case 0x03000001), the function in question will attempt to call radeon_vce_cs_reloc() with size argument that has not been properly initialized. Specifically, 'size' will point to 'tmp' variable before the latter had a chance to be assigned any value. Play it safe and init 'tmp' with 0, thus ensuring that radeon_vce_cs_reloc() will catch an early error in cases like these. Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE. (cherry picked from commit 2d52de55f9ee7aaee0e09ac443f77855989c6b68)

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.133-1DEBIAN-CVE-2025-21996
Debian:13linux6.12.21-1DEBIAN-CVE-2025-21996
Debian:14linux6.12.21-1DEBIAN-CVE-2025-21996
Ubuntu:22.04:LTSlinux5.15.0-142.152UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux5.15.0-142.152USN-7591-1
Ubuntu:24.04:LTSlinux6.8.0-84.84UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-aws5.15.0-1086.93USN-7591-4
Ubuntu:22.04:LTSlinux-aws5.15.0-1086.93UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-aws6.8.0-1039.41UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1039.41~22.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-azure5.15.0-1091.100USN-7597-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1091.100UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-azure6.8.0-1038.44UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1018.18~24.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1036.42~22.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1091.100.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1025.27UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-gcp5.15.0-1085.94UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-gcp5.15.0-1085.94USN-7591-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1040.42UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1016.16~24.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1040.42~22.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-gke5.15.0-1083.89USN-7591-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1083.89UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-gke6.8.0-1036.40UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1068.76UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1068.76USN-7591-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1023.25UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-28.28~24.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-85.85~22.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-ibm5.15.0-1078.81USN-7591-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1078.81UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-ibm6.8.0-1037.37UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1037.37~22.04.1UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1081.87USN-7591-5
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1081.87UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-kvm5.15.0-1082.87USN-7591-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1082.87UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-142.152USN-7591-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-142.152UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-84.84.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1015.16~24.04.2UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-84.84.1~22.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1080.81USN-7591-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1080.81UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1039.42UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1012.12UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1039.42~22.04.1UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1039.42.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1039.39USN-7591-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1039.39UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1010.10UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1028.28UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1028.28USN-7591-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1024.24UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-oracle5.15.0-1083.89USN-7591-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1083.89UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-oracle6.8.0-1037.38UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1037.38~22.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-raspi5.15.0-1080.83USN-7591-6
Ubuntu:22.04:LTSlinux-raspi5.15.0-1080.83UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-raspi6.8.0-1039.43UBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-84.84~22.04.1UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-21996
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1018.19UBUNTU-CVE-2025-21996
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1050.54UBUNTU-CVE-2025-21996

Affected products (as reported)

VendorProductVersions
Linux Linux 2fc5703abda201f138faf63bdca743d04dbf4b1a – before 0effb378ebce52b897f85cd7f828854b8c7cb6362fc5703abda201f138faf63bdca743d04dbf4b1a – before 5b4d9d20fd455a97920cf158dd19163b879cf65d2fc5703abda201f138faf63bdca743d04dbf4b1a – before 9b2da9c673a0da1359a2151f7ce773e2f77d71a92fc5703abda201f138faf63bdca743d04dbf4b1a – before 78b07dada3f02f77762d0755a96d35f53b02be692fc5703abda201f138faf63bdca743d04dbf4b1a – before 3ce08215cad55c10a6eeeb33d3583b6cfffe3ab82fc5703abda201f138faf63bdca743d04dbf4b1a – before dd1801aa01bba1760357f2a641346ae1496867132fc5703abda201f138faf63bdca743d04dbf4b1a – before f5e049028124f755283f2c07e7a3708361ed1dc82fc5703abda201f138faf63bdca743d04dbf4b1a – before dd8689b52a24807c2d5ce0a17cb26dc87f75235c
Linux Linux 3.15

Weakness: CWE-908 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References