CVE-2026-68480
x86/bugs: Make Safe-RET robust against interrupt injection
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 3f9b7101bea1dcb63410c016ceb266f6e9f733c9; < dfefa3c51370f84acb643cddf98bb42c885d0483 (affected, git) ≥ b35087763a44d1eb45857f799579a351332be505; < 52db77a13be224e09eb4ba6b4252ae8ab9085c2c (affected, git) ≥ ac41e90d8daa8815d8bee774a1975435fbfe1ae7; < d0208e08d64d99383e09852a76cc3038c5a4c3ab (affected, git) ≥ fb3bd914b3ec28f5fb697ac55c4846ac2d542855; < 6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096 (affected, git) ≥ fb3bd914b3ec28f5fb697ac55c4846ac2d542855; < e262f28a69ae9e0791248f93b0173c1d1f3e1d5d (affected, git) ≥ fb3bd914b3ec28f5fb697ac55c4846ac2d542855; < bfe7f9993467ba431b2731437949ac1e2634e771 (affected, git) ≥ fb3bd914b3ec28f5fb697ac55c4846ac2d542855; < 61649a2d61cb0dbc673f0f232f0f0c298bf50442 (affected, git) ≥ fb3bd914b3ec28f5fb697ac55c4846ac2d542855; < 7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9 (affected, git) acdc883eb61efbe01b954e782e1124790bd391a8 (affected, git) ≥ 5.10.189; < 5.10.264 (affected, semver) ≥ 5.15.125; < 5.15.215 (affected, semver) ≥ 6.1.44; < 6.1.182 (affected, semver) ≥ 6.4.9; < 6.5 (affected, semver) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
6.5 (affected) ≥ 0; < 6.5 (unaffected, semver) ≥ 5.10.264; ≤ 5.10.* (unaffected, semver) ≥ 5.15.215; ≤ 5.15.* (unaffected, semver) ≥ 6.1.182; ≤ 6.1.* (unaffected, semver) ≥ 6.6.150; ≤ 6.6.* (unaffected, semver) ≥ 6.12.102; ≤ 6.12.* (unaffected, semver) ≥ 6.18.43; ≤ 6.18.* (unaffected, semver) ≥ 7.1.7; ≤ 7.1.* (unaffected, semver) ≥ 7.2; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/dfefa3c51370f84acb643cddf98bb42c885d0483CNA: Linux
- https://git.kernel.org/stable/c/52db77a13be224e09eb4ba6b4252ae8ab9085c2cCNA: Linux
- https://git.kernel.org/stable/c/d0208e08d64d99383e09852a76cc3038c5a4c3abCNA: Linux
- https://git.kernel.org/stable/c/6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096CNA: Linux
- https://git.kernel.org/stable/c/e262f28a69ae9e0791248f93b0173c1d1f3e1d5dCNA: Linux
- https://git.kernel.org/stable/c/bfe7f9993467ba431b2731437949ac1e2634e771CNA: Linux
- https://git.kernel.org/stable/c/61649a2d61cb0dbc673f0f232f0f0c298bf50442CNA: Linux
- https://git.kernel.org/stable/c/7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9CNA: Linux
- https://people.csail.mit.edu/mengjia/data/2026.USENIX.TONTOU.pdfCNA: Linux
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