In the Linux kernel, the following vulnerability has been resolved:
um: work around sched_yield not yielding in time-travel mode
sched_yield by a userspace may not actually cause scheduling in time-travel mode as no time has passed. In the case seen it appears to be a badly implemented userspace spinlock in ASAN. Unfortunately, with time-travel it causes an extreme slowdown or even deadlock depending on the kernel configuration (CONFIG_UML_MAX_USERSPACE_ITERATIONS).
Work around it by accounting time to the process whenever it executes a sched_yield syscall.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | No solution exists | May 15, 2025 | May 9, 2025 |
| Ubuntu | — | Upgrade linux-image-6.14.0-1008-gcp-64kUpgrade linux-image-6.14.0-1007-azure-fdeUpgrade linux-image-aws-64kUpgrade linux-image-genericUpgrade linux-image-generic-64kUpgrade linux-image-gcpUpgrade linux-image-6.14.0-1007-oracleUpgrade linux-image-oracle-64kUpgrade linux-image-6.14.0-1004-realtimeUpgrade linux-image-6.14.0-22-generic-64kUpgrade linux-image-realtimeUpgrade linux-image-oracleUpgrade linux-image-6.14.0-1007-azureUpgrade linux-image-6.14.0-1007-oracle-64kUpgrade linux-image-raspiUpgrade linux-image-azureUpgrade linux-image-gcp-64kUpgrade linux-image-6.14.0-1008-gcpUpgrade linux-image-6.14.0-22-genericUpgrade linux-image-azure-fdeUpgrade linux-image-6.14.0-1007-aws-64kUpgrade linux-image-6.14.0-1007-raspiUpgrade linux-image-awsUpgrade linux-image-6.14.0-1007-aws | Jun 26, 2025 | May 9, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 17, 2026 | May 9, 2025 |
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