CVE-2026-72468
xprtrdma: Initialize re_id before removal registration
Description
In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Initialize re_id before removal registration rpcrdma_create_id() registers ep->re_rn with the rpcrdma ib_client before returning the new rdma_cm_id to rpcrdma_ep_create(). However rpcrdma_ep_create() currently stores that pointer in ep->re_id only after rpcrdma_create_id() returns. A local administrator can race an NFS/RDMA mount against RDMA device removal. If rpcrdma_remove_one() observes the just-registered notification before rpcrdma_ep_create() assigns ep->re_id, rpcrdma_ep_removal_done() calls trace_xprtrdma_device_removal(NULL). The tracepoint dereferences id->device->name and copies id->route.addr.dst_addr, so the callback can crash the kernel with a NULL pointer dereference. Store the rdma_cm_id in ep->re_id immediately before publishing ep->re_rn. The existing error path still destroys the id directly if registration fails; ep is then freed by the caller without using ep->re_id. Remove the later duplicate assignment in rpcrdma_ep_create().
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
- Store rdma_cm_id immediately before publishing.
- Remove duplicate assignment in rpcrdma_ep_create().
- Apply the provided kernel patch.
- Update the Linux kernel.
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-2026-72468.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72468 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-2026-72468
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-2026-72468 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72468 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.
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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': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': '51248d877bbc6e604e38aeaf776c2781cb4f0dbd', 'versionType': 'git'}, {'status': 'affected', 'version': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': '28743571c17b58c21a7216fc9faaf8028df5869b', 'versionType': 'git'}, {'status': 'affected', 'version': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': '264ccd7871915749bee55fe0c39467a7f08d5479', 'versionType': 'git'}, {'status': 'affected', 'version': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': 'bb7caa63e1db22fd03e8dc591b12169e99169dff', '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': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'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': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': '51248d877bbc6e604e38aeaf776c2781cb4f0dbd', 'versionType': 'git'}, {'status': 'affected', 'version': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': '28743571c17b58c21a7216fc9faaf8028df5869b', 'versionType': 'git'}, {'status': 'affected', 'version': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': '264ccd7871915749bee55fe0c39467a7f08d5479', 'versionType': 'git'}, {'status': 'affected', 'version': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': 'bb7caa63e1db22fd03e8dc591b12169e99169dff', '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': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'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': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': '51248d877bbc6e604e38aeaf776c2781cb4f0dbd', 'versionType': 'git'}, {'status': 'affected', 'version': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': '28743571c17b58c21a7216fc9faaf8028df5869b', 'versionType': 'git'}, {'status': 'affected', 'version': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': '264ccd7871915749bee55fe0c39467a7f08d5479', 'versionType': 'git'}, {'status': 'affected', 'version': '3f4eb9ff923413cdb4c7e171c06d3564f6286712', 'lessThan': 'bb7caa63e1db22fd03e8dc591b12169e99169dff', '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': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'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: Initialize re_id before removal registration rpcrdma_create_id() registers ep->re_rn with the rpcrdma ib_client before returning the new rdma_cm_id to rpcrdma_ep_create(). However rpcrdma_ep_create() currently stores that pointer in ep->re_id only after rpcrdma_create_id() returns. A local administrator can race an NFS/RDMA mount against RDMA device removal. If rpcrdma_remove_one() observes the just-registered notification before rpcrdma_ep_create() assigns ep->re_id, rpcrdma_ep_removal_done() calls trace_xprtrdma_device_removal(NULL). The tracepoint dereferences id->device->name and copies id->route.addr.dst_addr, so the callback can crash the kernel with a NULL pointer dereference. Store the rdma_cm_id in ep->re_id immediately before publishing ep->re_rn. The existing error path still destroys the id directly if registration fails; ep is then freed by the caller without using ep->re_id. Remove the later duplicate assignment in rpcrdma_ep_create(). Added Reference https://git.kernel.org/stable/c/264ccd7871915749bee55fe0c39467a7f08d5479 Added Reference https://git.kernel.org/stable/c/28743571c17b58c21a7216fc9faaf8028df5869b Added Reference https://git.kernel.org/stable/c/51248d877bbc6e604e38aeaf776c2781cb4f0dbd Added Reference https://git.kernel.org/stable/c/bb7caa63e1db22fd03e8dc591b12169e99169dff