Vulnerability-Lookup

GHSA-76MH-MWM6-543C

Vulnerability from github – Published: 2026-08-07 00:31 – Updated: 2026-08-09 06:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68480"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-06T22:18:24Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/bugs: Make Safe-RET robust against interrupt injection\n\nAn attacker injecting interrupts while the Safe-RET mitigation executes\non machines affected by SRSO can neutralize the safe return sequence,\npotentially leading to data leakage through speculative execution.\n\nFixup register state as if the Safe-RET sequence executed successfully\nby \"emulating\" it, in a manner of speaking, and avoid executing a RET\ninstruction after returning from the interrupt.",
  "id": "GHSA-76mh-mwm6-543c",
  "modified": "2026-08-09T06:31:34Z",
  "published": "2026-08-07T00:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68480"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52db77a13be224e09eb4ba6b4252ae8ab9085c2c"
    },
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      "url": "https://git.kernel.org/stable/c/608c8f5dccaaf8b8d2b28c0fbdd439d144be62b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61649a2d61cb0dbc673f0f232f0f0c298bf50442"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95b08cdd603fe79d2e9d5212fbb13d577c835f4f"
    },
    {
      "type": "WEB",
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    },
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      "url": "https://git.kernel.org/stable/c/9de1a49e8f1fbf7c372902573a27a97d4ab4d0af"
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    {
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      "url": "https://git.kernel.org/stable/c/bfe7f9993467ba431b2731437949ac1e2634e771"
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    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e262f28a69ae9e0791248f93b0173c1d1f3e1d5d"
    },
    {
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      "url": "https://people.csail.mit.edu/mengjia/data/2026.USENIX.TONTOU.pdf"
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  "severity": []
}

CVE-2026-68480 (GCVE-0-2026-68480)

Vulnerability from cvelistv5 – Published: 2026-08-06 17:36 – Updated: 2026-08-09 03:38

Title

x86/bugs: Make Safe-RET robust against interrupt injection

Summary

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.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/dfefa3c51370f84ac…
https://git.kernel.org/stable/c/52db77a13be224e09…
https://git.kernel.org/stable/c/d0208e08d64d99383…
https://git.kernel.org/stable/c/6703dba1d14cbd664…
https://git.kernel.org/stable/c/e262f28a69ae9e079…
https://git.kernel.org/stable/c/bfe7f9993467ba431…
https://git.kernel.org/stable/c/61649a2d61cb0dbc6…
https://people.csail.mit.edu/mengjia/data/2026.US…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < dfefa3c51370f84acb643cddf98bb42c885d0483 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 52db77a13be224e09eb4ba6b4252ae8ab9085c2c (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d0208e08d64d99383e09852a76cc3038c5a4c3ab (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e262f28a69ae9e0791248f93b0173c1d1f3e1d5d (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < bfe7f9993467ba431b2731437949ac1e2634e771 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 61649a2d61cb0dbc673f0f232f0f0c298bf50442 (git) Affected: 0 , < 5.10.264 (semver) Affected: 0 , < 5.15.215 (semver) Affected: 0 , < 6.1.182 (semver) Affected: 0 , < 6.6.150 (semver) Affected: 0 , < 6.12.102 (semver) Affected: 0 , < 6.18.43 (semver) Affected: 0 , < 7.1.7 (semver)
Linux	Linux	Unaffected: 5.10.264 , ≤ 5.10.* (semver) Unaffected: 5.15.215 , ≤ 5.15.* (semver) Unaffected: 6.1.182 , ≤ 6.1.* (semver) Unaffected: 6.6.150 , ≤ 6.6.* (semver) Unaffected: 6.12.102 , ≤ 6.12.* (semver) Unaffected: 6.18.43 , ≤ 6.18.* (semver) Unaffected: 7.1.7 , ≤ 7.1.* (semver)

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JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-76MH-MWM6-543C

CVE-2026-68480 (GCVE-0-2026-68480)

Tags

Sightings

Nomenclature