Insufficient Control Flow Management in Linux kernel - CVE-2026-68480
Published: August 7, 2026
Vulnerability identifier: #VU141236
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-68480
CWE-ID: CWE-691
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to improper control flow handling in the x86 Safe-RET sequence when interrupts are injected during execution of the sequence on SRSO-affected systems. A local user can inject interrupts during the Safe-RET sequence to disclose sensitive information.
Only systems affected by SRSO are vulnerable.
Affected software
Linux kernel
Debian Linux
Fedora
linux (Debian package)
kernel
Debian Linux
Fedora
linux (Debian package)
kernel
How to mitigate CVE-2026-68480
Install security update from vendor's repository.
linux (Debian package) - update to 6.12.105-1
kernel - addressed in versions 7.1.7-100.fc43, 7.1.7-200.fc44
kernel - addressed in versions 7.1.7-100.fc43, 7.1.7-200.fc44
External References
- https://git.kernel.org/stable/c/52db77a13be224e09eb4ba6b4252ae8ab9085c2c
- https://git.kernel.org/stable/c/61649a2d61cb0dbc673f0f232f0f0c298bf50442
- https://git.kernel.org/stable/c/6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096
- https://git.kernel.org/stable/c/bfe7f9993467ba431b2731437949ac1e2634e771
- https://git.kernel.org/stable/c/d0208e08d64d99383e09852a76cc3038c5a4c3ab
- https://git.kernel.org/stable/c/dfefa3c51370f84acb643cddf98bb42c885d0483
- https://git.kernel.org/stable/c/e262f28a69ae9e0791248f93b0173c1d1f3e1d5d