Bug 2541363 (CVE-2026-98113) - CVE-2026-98113 kernel: ksmbd: rate limit unmapped SID errors
Summary: CVE-2026-98113 kernel: ksmbd: rate limit unmapped SID errors
Keywords:
Status: NEW
Alias: CVE-2026-98113
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-25 11:34 UTC by OSIDB Bzimport
Modified: 2026-09-29 04:13 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-09-25 11:34:18 UTC 
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.
Comment 1 Keith Grant 2026-09-28 12:34:05 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98113.mbox
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