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Vulnerability · Published Dec 16, 2025 · Assigned by Linux

CVE-2025-68252misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup

Unrated

In plain English

A 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 8% of all known vulnerabilities).

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 91.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup In fastrpc_map_lookup, dma_buf_get is called to obtain a reference to the dma_buf for comparison purposes. However, this reference is never released when the function returns, leading to a dma_buf memory leak. Fix this by adding dma_buf_put before returning from the function, ensuring that the temporarily acquired reference is properly released regardless of whether a matching map is found. Rule: add

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-68252
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-68252
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-68252

Affected products (as reported)

VendorProductVersions
Linux Linux ec5cb80503bbfee67573699fe52fcf456fd57678 – before c2fef5ebb73f3dabae6fbc571d181914ed32c4836e0d6cc39f410a4d9ea774fbb254c68fe02ff4bb – before 9a297a68c3ba4a7ecb31ed52f61bd6634abb79d36e0928a8988e873da9946e17f8065ad77c720186 – before e17b13387827adce7acb19ac0f07f9bcafe0ff4c1986bba9597b3d97d3e80530dc457a1cd1994e22 – before 214e81a63a9aa0be42382ef0365ba5ed32c513ab9031626ade38b092b72638dfe0c6ffce8d8acd43 – before fff111bf45cbeeb659324316d68554e35d350092
Linux Linux 6.1.156 – before 6.1.1586.6.112 – before 6.6.1156.12.53 – before 6.12.566.17.3 – before 6.17.6

References