CVE-2026-53055
crypto: hisilicon/sec2 - prevent req used-after-free for sec
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - prevent req used-after-free for sec During packet transmission, if the system is under heavy load, the hardware might complete processing the packet and free the request memory (req) before the transmission function finishes. If the software subsequently accesses this req, a use-after-free error will occur. The qp_ctx memory exists throughout the packet sending process, so replace the req with the qp_ctx.
INFO
Published Date :
June 24, 2026, 5:17 p.m.
Last Modified :
July 21, 2026, 5:29 p.m.
Remotely Exploit :
Yes !
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Apply the kernel patch to the sec2 crypto driver.
- Replace req with qp_ctx to prevent use-after-free.
- Update the Linux kernel to the latest version.
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-2026-53055.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53055 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-2026-53055
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-2026-53055 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53055 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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Initial Analysis by [email protected]
Jul. 21, 2026
Action Type Old Value New Value Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.10 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.17 up to (excluding) 6.18.33 Added Reference Type kernel.org: https://git.kernel.org/stable/c/67b53a660e6bf0da2fa8d8872e897a14d8059eaf Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ad73563f3a1edbfddf2724136c6a15826b354e18 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b375c3c7209cc59e40e97998aa9bc768369cca0e Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 28, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 24, 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': 'f0ae287c50455f7be0d8dd45a803d403c7aa4d2e', 'lessThan': 'b375c3c7209cc59e40e97998aa9bc768369cca0e', 'versionType': 'git'}, {'status': 'affected', 'version': 'f0ae287c50455f7be0d8dd45a803d403c7aa4d2e', 'lessThan': 'ad73563f3a1edbfddf2724136c6a15826b354e18', 'versionType': 'git'}, {'status': 'affected', 'version': 'f0ae287c50455f7be0d8dd45a803d403c7aa4d2e', 'lessThan': '67b53a660e6bf0da2fa8d8872e897a14d8059eaf', 'versionType': 'git'}], 'programFiles': ['drivers/crypto/hisilicon/sec2/sec_crypto.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.17'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.17', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.33', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.10', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/crypto/hisilicon/sec2/sec_crypto.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - prevent req used-after-free for sec During packet transmission, if the system is under heavy load, the hardware might complete processing the packet and free the request memory (req) before the transmission function finishes. If the software subsequently accesses this req, a use-after-free error will occur. The qp_ctx memory exists throughout the packet sending process, so replace the req with the qp_ctx. Added Reference https://git.kernel.org/stable/c/67b53a660e6bf0da2fa8d8872e897a14d8059eaf Added Reference https://git.kernel.org/stable/c/ad73563f3a1edbfddf2724136c6a15826b354e18 Added Reference https://git.kernel.org/stable/c/b375c3c7209cc59e40e97998aa9bc768369cca0e