CVE-2026-68480
x86/bugs: Make Safe-RET robust against interrupt injection
Description
In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Make Safe-RET robust against interrupt injection An attacker injecting interrupts while the Safe-RET mitigation executes on machines affected by SRSO can neutralize the safe return sequence, potentially leading to data leakage through speculative execution. Fixup register state as if the Safe-RET sequence executed successfully by "emulating" it, in a manner of speaking, and avoid executing a RET instruction after returning from the interrupt.
INFO
Published Date :
Aug. 6, 2026, 10:18 p.m.
Last Modified :
Aug. 6, 2026, 10:18 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-68480
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
- Update the Linux kernel to include the Safe-RET fix.
- Ensure register state is correctly handled after interrupts.
- Prevent RET instruction execution upon interrupt return.
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-2026-68480.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68480 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-2026-68480
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-2026-68480 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68480 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. 06, 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': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '9de1a49e8f1fbf7c372902573a27a97d4ab4d0af', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '9c0b8105e919be5208c81d5516a194a28c58fe1e', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '95b08cdd603fe79d2e9d5212fbb13d577c835f4f', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '608c8f5dccaaf8b8d2b28c0fbdd439d144be62b0', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': 'bfe7f9993467ba431b2731437949ac1e2634e771', 'versionType': 'git'}, {'status': 'affected', 'version': '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2', 'lessThan': '61649a2d61cb0dbc673f0f232f0f0c298bf50442', 'versionType': 'git'}, {'status': 'affected', 'version': '0', 'lessThan': '5.10.263', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '5.15.214', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.1.181', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.6.149', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '6.18.43', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '7.1.7', 'versionType': 'semver'}], 'programFiles': ['arch/x86/entry/entry_64.S', 'arch/x86/include/asm/nospec-branch.h', 'arch/x86/kernel/cpu/bugs.c', 'arch/x86/lib/retpoline.S'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'unaffected', 'version': '5.10.263', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.214', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.181', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.149', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.18.43', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.7', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}], 'programFiles': ['arch/x86/entry/entry_64.S', 'arch/x86/include/asm/nospec-branch.h', 'arch/x86/kernel/cpu/bugs.c', 'arch/x86/lib/retpoline.S'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Make Safe-RET robust against interrupt injection An attacker injecting interrupts while the Safe-RET mitigation executes on machines affected by SRSO can neutralize the safe return sequence, potentially leading to data leakage through speculative execution. Fixup register state as if the Safe-RET sequence executed successfully by "emulating" it, in a manner of speaking, and avoid executing a RET instruction after returning from the interrupt. Added Reference https://git.kernel.org/stable/c/608c8f5dccaaf8b8d2b28c0fbdd439d144be62b0 Added Reference https://git.kernel.org/stable/c/61649a2d61cb0dbc673f0f232f0f0c298bf50442 Added Reference https://git.kernel.org/stable/c/95b08cdd603fe79d2e9d5212fbb13d577c835f4f Added Reference https://git.kernel.org/stable/c/9c0b8105e919be5208c81d5516a194a28c58fe1e Added Reference https://git.kernel.org/stable/c/9de1a49e8f1fbf7c372902573a27a97d4ab4d0af Added Reference https://git.kernel.org/stable/c/bfe7f9993467ba431b2731437949ac1e2634e771