CVE-2026-72467
xprtrdma: Check frwr_wp_create() during connect
Description
In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Check frwr_wp_create() during connect frwr_wp_create() creates the singleton Memory Region used to encode padding for Write chunks whose payload length is not XDR-aligned. Its failure paths return a negative errno and leave ep->re_write_pad_mr set to NULL. rpcrdma_xprt_connect() currently ignores that return value. If frwr_wp_create() fails after the rest of the connection setup succeeds, xprt_rdma_connect_worker() treats the connection attempt as successful and sets XPRT_CONNECTED. A later NFS/RDMA read with a non-4-byte-aligned receive page length reaches rpcrdma_encode_write_list(), passes the NULL write-pad MR to encode_rdma_segment(), and dereferences it. This is locally triggerable on an NFS/RDMA client after a connect or reconnect hits a local MR allocation, DMA-map, MR-map, or post-send failure; a remote peer alone cannot force the local MR setup failure. Check the return value and fail the connect as -ENOTCONN, matching the adjacent setup failures. This keeps XPRT_CONNECTED clear and lets the normal reconnect path retry.
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 17, 2026, 6:19 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Check return value of frwr_wp_create() in rpcrdma_xprt_connect().
- Fail the connect if frwr_wp_create() returns an error.
- Ensure XPRT_CONNECTED is not set on connection failure.
- Allow reconnects to retry the connection.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72467.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72467 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72467
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72467 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72467 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '3b252fe1778b2cdd68283146455929801bc2abd7', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': 'dd798b76a3481e392820c3ae86ed4592858c6b0f', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '6b7be4f3feae322f1c2c40a3bdc99db93574a49e', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '7471e66373a4444a57ef2192f8c4081202c54f45', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': 'ef3b79edf14b6bfb0d21a26ccb0463f9cf82c6a9', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '0f13fc7c7d2e0427517e63c739277a4cd338b0c5', 'versionType': 'git'}], 'programFiles': ['net/sunrpc/xprtrdma/verbs.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/sunrpc/xprtrdma/verbs.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '3b252fe1778b2cdd68283146455929801bc2abd7', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': 'dd798b76a3481e392820c3ae86ed4592858c6b0f', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '6b7be4f3feae322f1c2c40a3bdc99db93574a49e', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '7471e66373a4444a57ef2192f8c4081202c54f45', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': 'ef3b79edf14b6bfb0d21a26ccb0463f9cf82c6a9', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '0f13fc7c7d2e0427517e63c739277a4cd338b0c5', 'versionType': 'git'}], 'programFiles': ['net/sunrpc/xprtrdma/verbs.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/sunrpc/xprtrdma/verbs.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '3b252fe1778b2cdd68283146455929801bc2abd7', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': 'dd798b76a3481e392820c3ae86ed4592858c6b0f', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '6b7be4f3feae322f1c2c40a3bdc99db93574a49e', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '7471e66373a4444a57ef2192f8c4081202c54f45', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': 'ef3b79edf14b6bfb0d21a26ccb0463f9cf82c6a9', 'versionType': 'git'}, {'status': 'affected', 'version': '21037b8c2258ec40de3b31be9ced43ceb3b784f7', 'lessThan': '0f13fc7c7d2e0427517e63c739277a4cd338b0c5', 'versionType': 'git'}], 'programFiles': ['net/sunrpc/xprtrdma/verbs.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/sunrpc/xprtrdma/verbs.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Check frwr_wp_create() during connect frwr_wp_create() creates the singleton Memory Region used to encode padding for Write chunks whose payload length is not XDR-aligned. Its failure paths return a negative errno and leave ep->re_write_pad_mr set to NULL. rpcrdma_xprt_connect() currently ignores that return value. If frwr_wp_create() fails after the rest of the connection setup succeeds, xprt_rdma_connect_worker() treats the connection attempt as successful and sets XPRT_CONNECTED. A later NFS/RDMA read with a non-4-byte-aligned receive page length reaches rpcrdma_encode_write_list(), passes the NULL write-pad MR to encode_rdma_segment(), and dereferences it. This is locally triggerable on an NFS/RDMA client after a connect or reconnect hits a local MR allocation, DMA-map, MR-map, or post-send failure; a remote peer alone cannot force the local MR setup failure. Check the return value and fail the connect as -ENOTCONN, matching the adjacent setup failures. This keeps XPRT_CONNECTED clear and lets the normal reconnect path retry. Added Reference https://git.kernel.org/stable/c/0f13fc7c7d2e0427517e63c739277a4cd338b0c5 Added Reference https://git.kernel.org/stable/c/3b252fe1778b2cdd68283146455929801bc2abd7 Added Reference https://git.kernel.org/stable/c/6b7be4f3feae322f1c2c40a3bdc99db93574a49e Added Reference https://git.kernel.org/stable/c/7471e66373a4444a57ef2192f8c4081202c54f45 Added Reference https://git.kernel.org/stable/c/dd798b76a3481e392820c3ae86ed4592858c6b0f Added Reference https://git.kernel.org/stable/c/ef3b79edf14b6bfb0d21a26ccb0463f9cf82c6a9