CVE-2026-43275
CVE-2026-43275 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.
Key facts
- Severity: Medium (CVSS 3.x base score 4.7)
- EPSS exploit prediction: 0% (1st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-27673
- Weakness: CWE-362
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Flush exception handling work when RPM level is zero Ensure that the exception event handling work is explicitly flushed during suspend when the runtime power management level is set to UFS_PM_LVL_0. When the RPM level is zero, the device power mode and link state both remain active. Previously, the UFS core driver bypassed flushing exception event handling jobs in this configuration. This created a race condition where the driver could attempt to access the host controller to handle an exception after the system had already entered a deep power-down state, resulting in a system crash. Explicitly flush this work and disable auto BKOPs before the suspend callback proceeds. This guarantees that pending exception tasks complete and prevents illegal hardware access during the power-down sequence.
Frequently asked questions
- What is CVE-2026-43275?
- In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Flush exception handling work when RPM level is zero Ensure that the exception event handling work is explicitly flushed during suspend when the runtime power management level is set to UFS_PM_LVL_0. When the RPM level is zero, the device power mode and link state both remain active. Previously, the UFS core driver bypassed flushing exception event handling jobs in this configuration. This created a race condition where the driver could attempt to access the host controller to handle an exception after the system had already entered a deep power-down state, resulting in a system crash. Explicitly flush this work and disable auto BKOPs before the suspend callback proceeds. This guarantees that pending exception tasks complete and prevents illegal hardware access during the power-down sequence.
- How severe is CVE-2026-43275?
- CVE-2026-43275 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-43275 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-43275?
- CVE-2026-43275 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-43275?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-43275 have an EU (EUVD) identifier?
- Yes. CVE-2026-43275 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27673.
- When was CVE-2026-43275 published?
- CVE-2026-43275 was published on 2026-05-06 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/5d186731bc335cc049d4e57ab9f563cfab95593e
- https://git.kernel.org/stable/c/78d8e2d6352e8317686ee3a44811ac14c415a57d
- https://git.kernel.org/stable/c/aa8d68d97c7f0ef966e51afc17fdbdc372700edf
- https://git.kernel.org/stable/c/aac2fee7513dd25042a616f86a1469b4858d2c5c
- https://git.kernel.org/stable/c/ab71c146c135f9af1614ef0fc29a0a3b84f1a373
- https://git.kernel.org/stable/c/d5c3a1a13f97355c397f9439d79cb04b182958a3
- https://git.kernel.org/stable/c/f8ef441811ec413717f188f63d99182f30f0f08e
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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