CVE-2026-46327
CVE-2026-46327 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (2nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-35428
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: dm: fix unlocked test for dm_suspended_md The function dm_blk_report_zones tests if the device is suspended with the "dm_suspended_md" call. However, this function is called without holding any locks, so the device may be suspended just after it. Move the call to dm_suspended_md after dm_get_live_table, so that the device can't be suspended after the suspended state was tested.
Frequently asked questions
- What is CVE-2026-46327?
- In the Linux kernel, the following vulnerability has been resolved: dm: fix unlocked test for dm_suspended_md The function dm_blk_report_zones tests if the device is suspended with the "dm_suspended_md" call. However, this function is called without holding any locks, so the device may be suspended just after it. Move the call to dm_suspended_md after dm_get_live_table, so that the device can't be suspended after the suspended state was tested.
- How severe is CVE-2026-46327?
- CVE-2026-46327 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-46327 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-46327?
- CVE-2026-46327 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-46327?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-46327 have an EU (EUVD) identifier?
- Yes. CVE-2026-46327 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35428.
- When was CVE-2026-46327 published?
- CVE-2026-46327 was published on 2026-06-09 and last updated on 2026-07-08.
References
- https://git.kernel.org/stable/c/175ac0a6115400278d3900f5a04a58b17b3f6cd0
- https://git.kernel.org/stable/c/24c405fdbe215c45e57bba672cc42859038491ee
- https://git.kernel.org/stable/c/7a3385e97af2b6f485fef11e82d8c29adee4be93
- https://git.kernel.org/stable/c/d809a36692ee1394cac85ce6ba7cf8ea58da5812
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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