CVE-2026-68480

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

N/A
Published: August 6, 2026 at 05:36 PM UTC
Updated: August 18, 2026 at 07:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 6.4.95.10.189 ≤ v < 5.10.2645.15.125 ≤ v < 5.15.2156.1.44 ≤ v < 6.1.1826.4.9 ≤ v < 6.56.5 ≤ v < 6.12.1026.5 ≤ v < 6.18.436.5 ≤ v < 6.6.1506.5 ≤ v < 7.1.76.5 ≤ v < 7.23f9b7101bea1dcb63410c016ceb266f6e9f733c95.10.1895.15.1256.1.446.4.96.5ac41e90d8daa8815d8bee774a1975435fbfe1ae7acdc883eb61efbe01b954e782e1124790bd391a8b35087763a44d1eb45857f799579a351332be505fb3bd914b3ec28f5fb697ac55c4846ac2d542855
Vendor states this is fixed in 52db77a13be224e09eb4ba6b4252ae8ab9085c2c (fixed)
Vendor states this is fixed in 61649a2d61cb0dbc673f0f232f0f0c298bf50442 (fixed)
Vendor states this is fixed in 6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096 (fixed)
Vendor states this is fixed in 7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9 (fixed)
Vendor states this is fixed in bfe7f9993467ba431b2731437949ac1e2634e771 (fixed)
Vendor states this is fixed in d0208e08d64d99383e09852a76cc3038c5a4c3ab (fixed)
Vendor states this is fixed in dfefa3c51370f84acb643cddf98bb42c885d0483 (fixed)
Vendor states this is fixed in e262f28a69ae9e0791248f93b0173c1d1f3e1d5d (fixed)
Vendor states this is fixed in 5.10.264 (unaffected)
Vendor states this is fixed in 5.15.215 (unaffected)
Vendor states this is fixed in 6.1.182 (unaffected)
Vendor states this is fixed in 6.12.102 (unaffected)
Vendor states this is fixed in 6.18.43 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)
Vendor states this is fixed in 6.6.150 (unaffected)
Vendor states this is fixed in 7.1.7 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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