CVE-2026-98113

In the Linux kernel, the following vulnerability has been resolved: ksmbd: rate limit unmapped SID errors A client can include many structurally valid but unmapped SIDs in a DACL. Logging every mapping failure lets one request generate hundreds of kernel error messages. Rate limit the message to prevent an authenticated client from flooding the kernel log.

Package Linux Kernel
Published 2026-09-25
Last modified 2026-10-03
Patch available
Yes

Affected versions

Linux kernel versions 5.15 and later are affected. Fixed in 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3-rc2 and their respective stable series.

Affected from
≥ 5.15
Fixed in
✓ 5.15.222 5.15.x ✓ 6.1.189 6.1.x ✓ 6.6.158 6.6.x ✓ 6.12.111 6.12.x ✓ 6.18.53 6.18.x ✓ 7.2.7 7.2.x ✓ 7.3-rc2

Frequently asked questions

  • What is CVE-2026-98113?

    CVE-2026-98113 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15 onward and has been patched in 5.15.222, 6.1.189, 6.6.158 and others. CVE-2026-98113 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-98113?

    Yes. CVE-2026-98113 has been patched. Fixed versions include 5.15.222, 6.1.189, 6.6.158 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-98113 actively exploited?

    No. CVE-2026-98113 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.