CVE-2022-47940

high

Published — · Modified —

CVSS v3

—

CVSS v2

—

VIR risk

8.0

Description

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.18 before 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case in smb2_write.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2022-47940

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2022-47940.html

OS impact

OS	Version	Status	Fixed in
arch		fixed	`6.2-1`
debian	bookworm	fixed	`5.19.6-1`
debian	bullseye	fixed	`0`
debian	forky	fixed	`5.19.6-1`
debian	sid	fixed	`5.19.6-1`
debian	trixie	fixed	`5.19.6-1`
sles		affected

References

https://www.suse.com/security/cve/CVE-2022-47940.html
https://security-tracker.debian.org/tracker/CVE-2022-47940

Verify integrity in audit chain (admin only). AS-IS.