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.
Affected versions
Linux kernel versions
6.12.34,
6.15.3,
6.16
and later are affected. Fixed in
6.12.75,
6.18.14,
6.19.4,
7.0
and their respective stable series.
References
The following references provide additional information about CVE-2026-46327 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/175ac0a6115400278d3900f5a04a58b17b3f6cd0
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PatchKernel patch commithttps://git.kernel.org/stable/c/24c405fdbe215c45e57bba672cc42859038491ee
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PatchKernel patch commithttps://git.kernel.org/stable/c/7a3385e97af2b6f485fef11e82d8c29adee4be93
Frequently asked questions
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What is CVE-2026-46327?
CVE-2026-46327 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.12.34 onward and has been patched in 6.12.75, 6.18.14, 6.19.4 and others. CVE-2026-46327 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-46327?
Yes — CVE-2026-46327 has been patched. Fixed versions include 6.12.75, 6.18.14, 6.19.4 and others. If you are running Linux kernel 6.12.34 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-46327 actively exploited?
No — CVE-2026-46327 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.