High severity8.1NVD Advisory· Published Dec 23, 2022· Updated Jun 17, 2026

CVE-2022-47940

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Linux/Kernel2 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.15,<5.15.145
- (no CPE)range: 5.15 - 5.18 before 5.18.18
Linux/Ksmbdcpe-rescue

Patches

Vulnerability mechanics

References

cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.18nvdMailing ListPatchVendor Advisory
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdMailing ListPatchVendor Advisory
github.com/torvalds/linux/commit/158a66b245739e15858de42c0ba60fcf3de9b8e6nvdPatchThird Party Advisory
www.openwall.com/lists/oss-security/2022/12/23/10nvdMailing ListThird Party Advisory

News mentions

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cvss	0.526
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