CVE-2026-68480
x86/bugs: Make Safe-RET robust against interrupt injection
CVSS Score
0.0
EPSS Score
0.2%
EPSS Percentile
14th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 6, 2026 |
| Last Updated | Aug 18, 2026 |
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Affected Versions
Linux / Linux
3f9b7101bea1dcb63410c016ceb266f6e9f733c9 < dfefa3c51370f84acb643cddf98bb42c885d0483 b35087763a44d1eb45857f799579a351332be505 < 52db77a13be224e09eb4ba6b4252ae8ab9085c2c ac41e90d8daa8815d8bee774a1975435fbfe1ae7 < d0208e08d64d99383e09852a76cc3038c5a4c3ab fb3bd914b3ec28f5fb697ac55c4846ac2d542855 < 6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096 fb3bd914b3ec28f5fb697ac55c4846ac2d542855 < e262f28a69ae9e0791248f93b0173c1d1f3e1d5d fb3bd914b3ec28f5fb697ac55c4846ac2d542855 < bfe7f9993467ba431b2731437949ac1e2634e771 fb3bd914b3ec28f5fb697ac55c4846ac2d542855 < 61649a2d61cb0dbc673f0f232f0f0c298bf50442 fb3bd914b3ec28f5fb697ac55c4846ac2d542855 < 7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9 acdc883eb61efbe01b954e782e1124790bd391a8 5.10.189 < 5.10.264 5.15.125 < 5.15.215 6.1.44 < 6.1.182 6.4.9 < 6.5
Linux / Linux
6.5
References
git.kernel.org: https://git.kernel.org/stable/c/dfefa3c51370f84acb643cddf98bb42c885d0483 git.kernel.org: https://git.kernel.org/stable/c/52db77a13be224e09eb4ba6b4252ae8ab9085c2c git.kernel.org: https://git.kernel.org/stable/c/d0208e08d64d99383e09852a76cc3038c5a4c3ab git.kernel.org: https://git.kernel.org/stable/c/6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096 git.kernel.org: https://git.kernel.org/stable/c/e262f28a69ae9e0791248f93b0173c1d1f3e1d5d git.kernel.org: https://git.kernel.org/stable/c/bfe7f9993467ba431b2731437949ac1e2634e771 git.kernel.org: https://git.kernel.org/stable/c/61649a2d61cb0dbc673f0f232f0f0c298bf50442 git.kernel.org: https://git.kernel.org/stable/c/7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9 people.csail.mit.edu: https://people.csail.mit.edu/mengjia/data/2026.USENIX.TONTOU.pdf