CVE-2026-68480x86/bugs: Make Safe-RET robust against interrupt injection
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 3f9b7101bea1dcb63410c016ceb266f6e9f733c9 before dfefa3c51370f84acb643cddf98bb42c885d0483; from b35087763a44d1eb45857f799579a351332be505 before 52db77a13be224e09eb4ba6b4252ae8ab9085c2c; from ac41e90d8daa8815d8bee774a1975435fbfe1ae7 before d0208e08d64d99383e09852a76cc3038c5a4c3ab; from fb3bd914b3ec28f5fb697ac55c4846ac2d542855 before 6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096; from fb3bd914b3ec28f5fb697ac55c4846ac2d542855 before e262f28a69ae9e0791248f93b0173c1d1f3e1d5d; from fb3bd914b3ec28f5fb697ac55c4846ac2d542855 before bfe7f9993467ba431b2731437949ac1e2634e771; from fb3bd914b3ec28f5fb697ac55c4846ac2d542855 before 61649a2d61cb0dbc673f0f232f0f0c298bf50442; from fb3bd914b3ec28f5fb697ac55c4846ac2d542855 before 7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9; and 5 more ranges | CNA record |
References
- https://git.kernel.org/stable/c/dfefa3c51370f84acb643cddf98bb42c885d0483
- https://git.kernel.org/stable/c/52db77a13be224e09eb4ba6b4252ae8ab9085c2c
- https://git.kernel.org/stable/c/d0208e08d64d99383e09852a76cc3038c5a4c3ab
- https://git.kernel.org/stable/c/6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096
- https://git.kernel.org/stable/c/e262f28a69ae9e0791248f93b0173c1d1f3e1d5d
- https://git.kernel.org/stable/c/bfe7f9993467ba431b2731437949ac1e2634e771
- https://git.kernel.org/stable/c/61649a2d61cb0dbc673f0f232f0f0c298bf50442
- https://git.kernel.org/stable/c/7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9
- https://people.csail.mit.edu/mengjia/data/2026.USENIX.TONTOU.pdf
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.