CVE-2026-74394
RDMA/srpt: fix integer overflow in immediate data length check
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: fix integer overflow in immediate data length check imm_buf->len is a user-controlled uint32_t received from the network. Adding it to imm_data_offset without overflow checking allows a malicious initiator to send len=0xFFFFFFFF, causing req_size to wrap around to a small value, bypassing the bounds check, and subsequently passing a ~4GB length to sg_init_one(). Use check_add_overflow() to detect wrapping before the comparison.
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 15, 2026, 6:22 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-74394
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Apply the patch to the Linux kernel.
- Update the Linux kernel to the latest version.
- Use check_add_overflow() to detect wrapping.
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-2026-74394.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74394 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-2026-74394
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-2026-74394 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74394 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.
-
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': '5dabcd0456d7ee17c2c7a17d7c2305444d2b9639', 'lessThan': 'c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d', 'versionType': 'git'}, {'status': 'affected', 'version': '5dabcd0456d7ee17c2c7a17d7c2305444d2b9639', 'lessThan': '3efa5301137140a3ca3677a9098c0a93a0acfd49', 'versionType': 'git'}, {'status': 'affected', 'version': '5dabcd0456d7ee17c2c7a17d7c2305444d2b9639', 'lessThan': '067b9556eeb007f28b7c2033b4dcde5b6d88418f', 'versionType': 'git'}, {'status': 'affected', 'version': '5dabcd0456d7ee17c2c7a17d7c2305444d2b9639', 'lessThan': 'dcf7a986f377cce0749ed53f1d64195fbd5fdf91', 'versionType': 'git'}, {'status': 'affected', 'version': '5dabcd0456d7ee17c2c7a17d7c2305444d2b9639', 'lessThan': '07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e', 'versionType': 'git'}, {'status': 'affected', 'version': '5dabcd0456d7ee17c2c7a17d7c2305444d2b9639', 'lessThan': '65572fbd86033ae2370125593d59b8be34253aaf', 'versionType': 'git'}, {'status': 'affected', 'version': '5dabcd0456d7ee17c2c7a17d7c2305444d2b9639', 'lessThan': '72497172a4799119a0282a5eb5e2b8ddcc821921', 'versionType': 'git'}, {'status': 'affected', 'version': '5dabcd0456d7ee17c2c7a17d7c2305444d2b9639', 'lessThan': 'eb4ecdf631fe00e8020bf461503cb9b7017ed796', 'versionType': 'git'}], 'programFiles': ['drivers/infiniband/ulp/srpt/ib_srpt.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'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': ['drivers/infiniband/ulp/srpt/ib_srpt.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: fix integer overflow in immediate data length check imm_buf->len is a user-controlled uint32_t received from the network. Adding it to imm_data_offset without overflow checking allows a malicious initiator to send len=0xFFFFFFFF, causing req_size to wrap around to a small value, bypassing the bounds check, and subsequently passing a ~4GB length to sg_init_one(). Use check_add_overflow() to detect wrapping before the comparison. Added Reference https://git.kernel.org/stable/c/067b9556eeb007f28b7c2033b4dcde5b6d88418f Added Reference https://git.kernel.org/stable/c/07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e Added Reference https://git.kernel.org/stable/c/3efa5301137140a3ca3677a9098c0a93a0acfd49 Added Reference https://git.kernel.org/stable/c/65572fbd86033ae2370125593d59b8be34253aaf Added Reference https://git.kernel.org/stable/c/72497172a4799119a0282a5eb5e2b8ddcc821921 Added Reference https://git.kernel.org/stable/c/c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d Added Reference https://git.kernel.org/stable/c/dcf7a986f377cce0749ed53f1d64195fbd5fdf91 Added Reference https://git.kernel.org/stable/c/eb4ecdf631fe00e8020bf461503cb9b7017ed796