Log in Start free

Vulnerability · Published Sep 15, 2025 · Assigned by Linux

CVE-2022-50234io_uring/af_unix: defer registered files gc to io_uring release

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 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 93.8% 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: io_uring/af_unix: defer registered files gc to io_uring release Instead of putting io_uring's registered files in unix_gc() we want it to be done by io_uring itself. The trick here is to consider io_uring registered files for cycle detection but not actually putting them down. Because io_uring can't register other ring instances, this will remove all refs to the ring file triggering the ->release path and clean up with io_ring_ctx_free(). [axboe: add kerneldoc comment to skb, fold in skb leak fix]

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.0.3-1DEBIAN-CVE-2022-50234
Debian:13linux6.0.3-1DEBIAN-CVE-2022-50234
Debian:14linux6.0.3-1DEBIAN-CVE-2022-50234
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50234
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-50234
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2022-50234

Affected products (as reported)

VendorProductVersions
Linux Linux 6b06314c47e141031be043539900d80d2c7ba10f – before 04df9719df1865f6770af9bc7880874af0e594b26b06314c47e141031be043539900d80d2c7ba10f – before c378c479c5175833bb22ff71974cda47d7b054016b06314c47e141031be043539900d80d2c7ba10f – before 813d8fe5d30388f73a21d3a2bf46b0a1fd72498c6b06314c47e141031be043539900d80d2c7ba10f – before b4293c01ee0d0ecdd3cb5801e13f62271144667a6b06314c47e141031be043539900d80d2c7ba10f – before 75e94c7e8859e58aadc15a98cc9704edff47d4f26b06314c47e141031be043539900d80d2c7ba10f – before 0091bfc81741b8d3aeb3b7ab8636f911b2de6e80
Linux Linux 5.1

References