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Vulnerability · Published Jun 18, 2025 · Assigned by Linux

CVE-2022-50046net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change()

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 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 91.2% 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: net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change() The issue happens on some error handling paths. When the function fails to grab the object `xprt`, it simply returns 0, forgetting to decrease the reference count of another object `xps`, which is increased by rpc_sysfs_xprt_kobj_get_xprt_switch(), causing refcount leaks. Also, the function forgets to check whether `xps` is valid before using it, which may result in NULL-dereferencing issues. Fix it by adding proper error handling code when either `xprt` or `xps` is NULL.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.0.2-1DEBIAN-CVE-2022-50046
Debian:13linux6.0.2-1DEBIAN-CVE-2022-50046
Debian:14linux6.0.2-1DEBIAN-CVE-2022-50046
Ubuntu:22.04:LTSlinux5.15.0-53.59UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-aws5.15.0-1023.27UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-azure5.15.0-1023.29UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1024.30.1UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-gcp5.15.0-1022.29UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-gke5.15.0-1020.25UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1008.12UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-ibm5.15.0-1018.21UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1018.23UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-kvm5.15.0-1021.26UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-53.59UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1015.15UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-oracle5.15.0-1022.28UBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-raspi5.15.0-1018.20UBUNTU-CVE-2022-50046
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50046
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50046
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-50046
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-50046

Affected products (as reported)

VendorProductVersions
Linux Linux 5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b – before c0434f0e058648649250b8ed6078b66d773de7235b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b – before 76fbeb1662b1c56514325118a07fba74dc4c79fe5b7eb78486cd9ac58bfbd6d84ea0fe2d9fead03b – before bfc48f1b0505ffcb03a6d749139b7577d6b81ae0
Linux Linux 5.14

References