CVE-2026-99087

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix NULL pointer dereference when the 'R' flag is used If the dm-integrity device has the SB_FLAG_DIRTY_BITMAP flag set and the user activates the device in the 'R' mode, a crash in dm_integrity_resume happens because the function attempts to read the journal containing the bitmap. This patch makes dm-integrity skip any writes to the device in dm_integrity_resume if the device is activated in the 'R' mode.

Package Linux Kernel
Published 2026-10-23
Last modified 2026-10-23
Patch available
Yes

Affected versions

Linux kernel versions 5.2 and later are affected. Fixed in 6.18.58, 7.2.12, 7.3 and their respective stable series.

Affected from
≥ 5.2
Fixed in
✓ 6.18.58 6.18.x ✓ 7.2.12 7.2.x ✓ 7.3

References

3 total

Frequently asked questions

  • What is CVE-2026-99087?

    CVE-2026-99087 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.2 onward and has been patched in 6.18.58, 7.2.12 and 7.3. CVE-2026-99087 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-99087?

    Yes. CVE-2026-99087 has been patched. Fixed versions include 6.18.58, 7.2.12 and 7.3. If you are running Linux kernel 5.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-99087 actively exploited?

    No. CVE-2026-99087 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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