Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2022-50401

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure On error situation `clp->cl_cb_conn.cb_xprt` should not be g…

Published Sep 18, 2025CWE-415EPSS 0.44%

Overview

CVE-2022-50401 is a critical-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure

On error situation `clp->cl_cb_conn.cb_xprt` should not be given

a reference to the xprt otherwise both client cleanup and the

error handling path of the caller call to put it. Better to

delay handing over the reference to a later branch.

[ 72.530665] refcount_t: underflow; use-after-free.

[ 72.531933] WARNING: CPU: 0 PID: 173 at lib/refcount.c:28 refcount_warn_saturate+0xcf/0x120

[ 72.533075] Modules linked in: nfsd(OE) nfsv4(OE) nfsv3(OE) nfs(OE) lockd(OE) compat_nfs_ssc(OE) nfs_acl(OE) rpcsec_gss_krb5(OE) auth_rpcgss(OE) rpcrdma(OE) dns_resolver fscache netfs grace rdma_cm iw_cm ib_cm sunrpc(OE) mlx5_ib mlx5_core mlxfw pci_hyperv_intf ib_uverbs ib_core xt_MASQUERADE nf_conntrack_netlink nft_counter xt_addrtype nft_compat br_netfilter bridge stp llc nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntr

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/15fc60aa5bdcf6d5f93000d3d00579fc67632ee0Refgit.kernel.org/stable/c/3bc8edc98bd43540dbe648e4ef91f443d6d20a24Refgit.kernel.org/stable/c/707bcca9616002d204091ca7c4d1d91151104332Refgit.kernel.org/stable/c/9b4ae8c42d2ff09ed7c5832ccce5684c55e5ed23Refgit.kernel.org/stable/c/a472f069ced8601979f53c13c0cf20236074ed46Refgit.kernel.org/stable/c/c1207219a4bfa50121c9345d5d165470d0a82531Refgit.kernel.org/stable/c/d843ebd860c58a38e45527e8ec6516059f4c97f3Refgit.kernel.org/stable/c/e2f9f03e4537f3fcc8fd2bdd3248530c3477a371Refgit.kernel.org/stable/c/fddac3b4578d302ac9e51e7f03a9aae6254ae2a3

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50401?

CVE-2022-50401 is a critical-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2022-50401?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-50401?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-50401?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50401 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related CRITICAL CVEs from 2022

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999