CVE-2026-68480 is a vulnerability in Linux Kernel
Published on August 6, 2026
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.
Products Associated with CVE-2026-68480
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Affected Versions
Linux:- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 9de1a49e8f1fbf7c372902573a27a97d4ab4d0af is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 9c0b8105e919be5208c81d5516a194a28c58fe1e is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 95b08cdd603fe79d2e9d5212fbb13d577c835f4f is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 608c8f5dccaaf8b8d2b28c0fbdd439d144be62b0 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below bfe7f9993467ba431b2731437949ac1e2634e771 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 61649a2d61cb0dbc673f0f232f0f0c298bf50442 is affected.
- Before 5.10.263 is affected.
- Before 5.15.214 is affected.
- Before 6.1.181 is affected.
- Before 6.6.149 is affected.
- Before 6.18.43 is affected.
- Before 7.1.7 is affected.
- Version 5.10.263, <= 5.10.* is unaffected.
- Version 5.15.214, <= 5.15.* is unaffected.
- Version 6.1.181, <= 6.1.* is unaffected.
- Version 6.6.149, <= 6.6.* is unaffected.
- Version 6.18.43, <= 6.18.* is unaffected.
- Version 7.1.7, <= 7.1.* is unaffected.