An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/smb2pdu.c in ksmbd has an integer underflow and out-of-bounds read in deassemble_neg_contexts.
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Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-07-18. NVD baseline CVSS 9.8; sources differ by 0.0.
An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/smb2pdu.c in ksmbd has an integer underflow and out-of-bounds read in deassemble_neg_contexts.
July 18, 2023
May 5, 2025
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-tools-aws-lts-22.04 (5.15.0.1057.58) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-virtual-hwe-22.04-edge (6.2.0.34.34) @ lunar | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-nvidia-hwe-22.04-edge (6.2.0.1011.13) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-virtual-hwe-20.04-edge (5.15.0.102.99) @ jammy | 2026-05-24 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
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Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/smb2pdu.c in ksmbd has an integer underflow and out-of-bounds read in deassemble_neg_contexts.
Linux kernel vulnerabilities
Linux kernel (NVIDIA) vulnerabilities
Linux kernel vulnerabilities
Linux kernel (AWS) vulnerabilities
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