CVE-2026-72465
xprtrdma: Sanitize the reply credit grant after parsing
Description
In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Sanitize the reply credit grant after parsing The out_norqst exit in rpcrdma_reply_handler() branches away before the credit clamp, so a reply that matches no pending request reaches out_post carrying the raw credit value parsed from the wire. rpcrdma_post_recvs() does not bound its @needed argument: the refill loop allocates and chains Receive WRs until the count is satisfied or allocation fails. A peer that sends a well-formed reply carrying an unknown XID and an inflated credit grant therefore drives rep allocation and Receive posting past re_max_requests on every such reply. Move the clamp to immediately after the credit field is parsed, ahead of the first branch that can reach out_post, so every later consumer sees a sanitized value. The cwnd update stays on the matched-request path.
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 17, 2026, 6:19 a.m.
Remotely Exploit :
Yes !
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Update the Linux kernel.
- Apply the patch for xprtrdma.
- Sanitize credit grants after parsing.
- Clamp credit values before use.
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-2026-72465.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72465 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-2026-72465
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-2026-72465 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72465 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 Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd01d6670c169316115b26dfb3585a73dfe40b563', 'lessThan': '7cf332b3d82d73ffceedca6b4a120be074172021', 'versionType': 'git'}, {'status': 'affected', 'version': 'd1b159356a3584943192712392fcb2439aafb8c1', 'lessThan': '41634242140173eabbf54f899f9c70b5c685e786', 'versionType': 'git'}, {'status': 'affected', 'version': '17da9e0caa8615f6fc3b4022eadbd78a9aea1a2a', 'lessThan': '8be1bb378def94a5cb8f7527a191e476407118ec', 'versionType': 'git'}, {'status': 'affected', 'version': 'e7ae0883c8c89b901226de43862184bf37054338', 'lessThan': '469b22376ee73369711ecf2761bd122ef4195963', 'versionType': 'git'}, {'status': 'affected', 'version': '704f3f640f72db4d44ec5ce3db8d4e150c974bc7', 'lessThan': '33db78b1b24fc6a464ae08aa4d2538c5f883eb5e', 'versionType': 'git'}, {'status': 'affected', 'version': '704f3f640f72db4d44ec5ce3db8d4e150c974bc7', 'lessThan': 'c3a628aab2dc8f5fd7bff86ceaeae64de590e60a', 'versionType': 'git'}], 'programFiles': ['net/sunrpc/xprtrdma/rpc_rdma.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '7.1'}, {'status': 'unaffected', 'version': '0', 'lessThan': '7.1', 'versionType': 'semver'}, {'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/rpc_rdma.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'd01d6670c169316115b26dfb3585a73dfe40b563', 'lessThan': '7cf332b3d82d73ffceedca6b4a120be074172021', 'versionType': 'git'}, {'status': 'affected', 'version': 'd1b159356a3584943192712392fcb2439aafb8c1', 'lessThan': '41634242140173eabbf54f899f9c70b5c685e786', 'versionType': 'git'}, {'status': 'affected', 'version': '17da9e0caa8615f6fc3b4022eadbd78a9aea1a2a', 'lessThan': '8be1bb378def94a5cb8f7527a191e476407118ec', 'versionType': 'git'}, {'status': 'affected', 'version': 'e7ae0883c8c89b901226de43862184bf37054338', 'lessThan': '469b22376ee73369711ecf2761bd122ef4195963', 'versionType': 'git'}, {'status': 'affected', 'version': '704f3f640f72db4d44ec5ce3db8d4e150c974bc7', 'lessThan': '33db78b1b24fc6a464ae08aa4d2538c5f883eb5e', 'versionType': 'git'}, {'status': 'affected', 'version': '704f3f640f72db4d44ec5ce3db8d4e150c974bc7', 'lessThan': 'c3a628aab2dc8f5fd7bff86ceaeae64de590e60a', 'versionType': 'git'}], 'programFiles': ['net/sunrpc/xprtrdma/rpc_rdma.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '7.1'}, {'status': 'unaffected', 'version': '0', 'lessThan': '7.1', 'versionType': 'semver'}, {'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/rpc_rdma.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': 'd01d6670c169316115b26dfb3585a73dfe40b563', 'lessThan': '7cf332b3d82d73ffceedca6b4a120be074172021', 'versionType': 'git'}, {'status': 'affected', 'version': 'd1b159356a3584943192712392fcb2439aafb8c1', 'lessThan': '41634242140173eabbf54f899f9c70b5c685e786', 'versionType': 'git'}, {'status': 'affected', 'version': '17da9e0caa8615f6fc3b4022eadbd78a9aea1a2a', 'lessThan': '8be1bb378def94a5cb8f7527a191e476407118ec', 'versionType': 'git'}, {'status': 'affected', 'version': 'e7ae0883c8c89b901226de43862184bf37054338', 'lessThan': '469b22376ee73369711ecf2761bd122ef4195963', 'versionType': 'git'}, {'status': 'affected', 'version': '704f3f640f72db4d44ec5ce3db8d4e150c974bc7', 'lessThan': '33db78b1b24fc6a464ae08aa4d2538c5f883eb5e', 'versionType': 'git'}, {'status': 'affected', 'version': '704f3f640f72db4d44ec5ce3db8d4e150c974bc7', 'lessThan': 'c3a628aab2dc8f5fd7bff86ceaeae64de590e60a', 'versionType': 'git'}], 'programFiles': ['net/sunrpc/xprtrdma/rpc_rdma.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '7.1'}, {'status': 'unaffected', 'version': '0', 'lessThan': '7.1', 'versionType': 'semver'}, {'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/rpc_rdma.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Sanitize the reply credit grant after parsing The out_norqst exit in rpcrdma_reply_handler() branches away before the credit clamp, so a reply that matches no pending request reaches out_post carrying the raw credit value parsed from the wire. rpcrdma_post_recvs() does not bound its @needed argument: the refill loop allocates and chains Receive WRs until the count is satisfied or allocation fails. A peer that sends a well-formed reply carrying an unknown XID and an inflated credit grant therefore drives rep allocation and Receive posting past re_max_requests on every such reply. Move the clamp to immediately after the credit field is parsed, ahead of the first branch that can reach out_post, so every later consumer sees a sanitized value. The cwnd update stays on the matched-request path. Added Reference https://git.kernel.org/stable/c/33db78b1b24fc6a464ae08aa4d2538c5f883eb5e Added Reference https://git.kernel.org/stable/c/41634242140173eabbf54f899f9c70b5c685e786 Added Reference https://git.kernel.org/stable/c/469b22376ee73369711ecf2761bd122ef4195963 Added Reference https://git.kernel.org/stable/c/7cf332b3d82d73ffceedca6b4a120be074172021 Added Reference https://git.kernel.org/stable/c/8be1bb378def94a5cb8f7527a191e476407118ec Added Reference https://git.kernel.org/stable/c/c3a628aab2dc8f5fd7bff86ceaeae64de590e60a