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

Type: advisorySources: OSV

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.

Products
Kernel
Affected versions
Not specified
Fixed versions
5.10.264, 5.15.215, 6.1.182, 6.12.102, 6.18.43, 6.6.150, 7.1.7
CVEs
CVE-2026-68480
Confirmed fixed CVEs
Not specified
Updated in this feed
28 Oct 2026, 13:03 UTC · Revision 1

Source evidence

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

core-osv · Original source

Published 6 Aug 2026, 17:36 UTC

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.

osv:CVE-2026-68480

Kernel

Fixed versions: 5.10.264, 5.15.215, 6.1.182, 6.6.150, 6.12.102, 6.18.43, 7.1.7

Complete source record
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  "method": "structured",
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    "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.",
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      "modified": "2026-10-09T18:26:42.170844770Z",
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        "https://people.csail.mit.edu/mengjia/data/2026.USENIX.TONTOU.pdf",
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  "source_id": "core-osv",
  "document_id": 124082,
  "published_at": "2026-08-06T17:36:43.654+00:00"
}