CVE-2026-68480

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

State: Published
Severity: Not scored
Published: Aug 6, 2026
Updated: Aug 18, 2026
Reserved: Jul 30, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	3f9b7101bea1dcb63410c016ceb266f6e9f733c9 to before dfefa3c51370f84acb643cddf98bb42c885d0483Affected b35087763a44d1eb45857f799579a351332be505 to before 52db77a13be224e09eb4ba6b4252ae8ab9085c2cAffected ac41e90d8daa8815d8bee774a1975435fbfe1ae7 to before d0208e08d64d99383e09852a76cc3038c5a4c3abAffected fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before 6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096Affected fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before e262f28a69ae9e0791248f93b0173c1d1f3e1d5dAffected fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before bfe7f9993467ba431b2731437949ac1e2634e771Affected fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before 61649a2d61cb0dbc673f0f232f0f0c298bf50442Affected fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before 7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9Affected acdc883eb61efbe01b954e782e1124790bd391a8Affected 5.10.189 to before 5.10.264Affected 5.15.125 to before 5.15.215Affected 6.1.44 to before 6.1.182Affected 6.4.9 to before 6.5Affected
LinuxLinux	6.5Affected before 6.5Not affected 5.10.264 through 5.10.Not affected 5.15.215 through 5.15.Not affected 6.1.182 through 6.1.Not affected 6.6.150 through 6.6.Not affected 6.12.102 through 6.12.Not affected 6.18.43 through 6.18.Not affected 7.1.7 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

3f9b7101bea1dcb63410c016ceb266f6e9f733c9 to before dfefa3c51370f84acb643cddf98bb42c885d0483Affected
b35087763a44d1eb45857f799579a351332be505 to before 52db77a13be224e09eb4ba6b4252ae8ab9085c2cAffected
ac41e90d8daa8815d8bee774a1975435fbfe1ae7 to before d0208e08d64d99383e09852a76cc3038c5a4c3abAffected
fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before 6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096Affected
fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before e262f28a69ae9e0791248f93b0173c1d1f3e1d5dAffected
fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before bfe7f9993467ba431b2731437949ac1e2634e771Affected
fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before 61649a2d61cb0dbc673f0f232f0f0c298bf50442Affected
fb3bd914b3ec28f5fb697ac55c4846ac2d542855 to before 7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9Affected
acdc883eb61efbe01b954e782e1124790bd391a8Affected
5.10.189 to before 5.10.264Affected
5.15.125 to before 5.15.215Affected
6.1.44 to before 6.1.182Affected
6.4.9 to before 6.5Affected

LinuxLinux

6.5Affected
before 6.5Not affected
5.10.264 through 5.10.*Not affected
5.15.215 through 5.15.*Not affected
6.1.182 through 6.1.*Not affected
6.6.150 through 6.6.*Not affected
6.12.102 through 6.12.*Not affected
6.18.43 through 6.18.*Not affected
7.1.7 through 7.1.*Not affected
7.2 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.