kernel security

  1. CVE-2025-37886 Linux pds_core Fix stabilizes admin queue handling

    The Linux kernel fix tracked as CVE-2025-37886 addresses a memory-safety and lifetime bug in the pds_core driver by making the previously stack‑allocated wait_context a permanent member of the driver’s q_info structure. At face value the change is small and surgical — move a completion context...
  2. Azure Linux CVE-2025-37891 Attestation and Microsoft Product Scope

    Microsoft’s short MSRC attestation that “Azure Linux includes this open‑source library and is therefore potentially affected” is accurate — but it is a product‑level inventory statement, not a categorical guarantee that no other Microsoft product ships the same vulnerable ALSA code. Background /...
  3. CVE-2025-37881 Aspeed vHub: Azure Linux Attestation vs Exclusivity Explained

    Microsoft’s MSRC entry for CVE‑2025‑37881 correctly identifies a kernel bug in the Aspeed USB vHub gadget driver — but the short MSRC phrasing that “Azure Linux includes this open‑source library and is therefore potentially affected” is a product‑scoped inventory statement, not a categorical...
  4. CVE-2025-37878: Azure Linux Patch and Microsoft Artifact Verification

    Microsoft’s advisory that “Azure Linux includes this open‑source library and is therefore potentially affected” for CVE‑2025‑37878 is accurate as a targeted attestation — but it is not a categorical guarantee that no other Microsoft product could include the same vulnerable code. Azure Linux is...
  5. CVE-2025-37817 Kernel Double Free in mcb Chameleon: Azure Linux Risk

    Microsoft’s one-line mapping of CVE-2025-37817 to Azure Linux is accurate as far as it goes — Azure Linux has been confirmed to include the vulnerable kernel code — but it is not a technical guarantee that no other Microsoft product ships the same vulnerable component, nor does it change the...
  6. Linux udmabuf CVE-2025-37803: Kernel Buffer Size Overflow Fixed

    A small, arithmetic oversight in the Linux kernel’s udmabuf driver has been assigned CVE‑2025‑37803 — a buffer‑size overflow discovered during udmabuf creation that lets a crafted local action cause kernel memory corruption and sustained denial of service unless systems are patched or the module...
  7. CVE-2025-37776: ksmbd Use-After-Free Fix and Azure Linux Attestation

    A recently assigned Linux-kernel CVE, CVE-2025-37776, fixes a subtle but important use‑after‑free in the in‑kernel SMB server (ksmbd) — and Microsoft’s public attestation that “Azure Linux includes this open‑source library and is therefore potentially affected” should be read as an...
  8. Azure Linux CVE-2025-37771: Attestation Limits Across Microsoft Products

    Microsoft’s brief public mapping for CVE-2025-37771—“Azure Linux includes this open‑source library and is therefore potentially affected”—is accurate for the product Microsoft has inspected, but it is not a categorical guarantee that no other Microsoft product or kernel image could include the...
  9. Azure Linux and CVE-2025-37943: What Admins Must Know

    Microsoft’s public advisory for CVE-2025-37943 confirms that the Azure Linux distribution has been identified as a carrier of the vulnerable upstream code, but that attestation does not mean Azure Linux is the only Microsoft product that could include the affected ath12k driver; it is the only...
  10. CVE-2023-3773 and Azure Linux Attestation: Per-Artifact Risk and Mitigation

    Microsoft’s short public mapping that “Azure Linux includes this open‑source library and is therefore potentially affected” is an important and accurate inventory statement — but it is not a categorical guarantee that no other Microsoft product can contain the same vulnerable Linux kernel code...
  11. PowerPC PowerNV Kernel Patch Prevents Local DoS in opal_powercap_init

    A compact, surgical fix in the Linux kernel’s PowerPC power‑management code closes a null‑pointer dereference that could let a local user provoke a kernel crash and sustained denial‑of‑service on PowerNV systems — a reminder that tiny memory‑management oversights still carry outsized operational...
  12. Azure Linux Attestation for CVE-2024-26948: Are Other Microsoft Artifacts Affected?

    Microsoft’s advisory naming Azure Linux as a carrier of the upstream Linux component implicated by CVE‑2024‑26948 is accurate — but it is a product‑scoped attestation, not a guarantee that no other Microsoft product can include the same vulnerable code. Microsoft’s public wording confirms Azure...
  13. Understanding CVE-2025-39713: Azure Linux Attestation vs Global Risk

    The recently assigned CVE‑2025‑39713 is a kernel‑level TOCTOU (time‑of‑check/time‑of‑use) race in the Linux media driver rainshadow‑cec that can lead to a buffer overflow in the interrupt handler; Microsoft’s public advisory for this CVE names Azure Linux as a product that “includes this...
  14. CVE-2025-38703: Azure Linux At Risk and Mitigation for Intel Xe DRM

    The short answer is: No — Azure Linux is not necessarily the only Microsoft product that could carry the vulnerable open‑source code, but it is the only Microsoft product Microsoft has publicly attested (via its VEX/CSAF pilot) to include the affected component so far. Microsoft’s public...
  15. CVE-2025-39743: Azure Linux Attestation and Per Artifact Verification

    Microsoft’s short advisory — that “Azure Linux includes this open‑source library and is therefore potentially affected” — is accurate on its face, but it is a product‑scoped attestation, not a categorical guarantee that Microsoft’s other products do not ship the same vulnerable code. Background...
  16. Azure Linux Attestation Explained: Not a Blanket Microsoft Guarantee

    Microsoft’s concise MSRC wording that “Azure Linux includes this open‑source library and is therefore potentially affected” is accurate for the product family it names — but it is a product‑scoped attestation, not a categorical guarantee that no other Microsoft product can include the same...
  17. Azure Linux CVE-2024-26909: Attestation Isn't a Blanket Microsoft Guarantee

    The short answer is: Microsoft has publicly attested that Azure Linux (the distro formerly known as CBL‑Mariner) includes the upstream component implicated by CVE‑2024‑26909 and is therefore potentially affected, but that attestation is a product‑scoped inventory statement — it is not a...
  18. Windows Administrator Protection: Forshaw Bypasses Reveal Kernel Design Risks (2026)

    Microsoft’s attempt to make privilege elevation in Windows 11 a true security boundary ran into a harsh reality check: decades of legacy kernel behavior are hard to rewrite safely. Google Project Zero’s James Forshaw exposed multiple privilege‑escalation bypasses against the new Administrator...
  19. CVE-2026-20863: Patch and Defend Against Win32k Kernel EoP

    Microsoft has recorded CVE-2026-20863 as an elevation-of-privilege vulnerability in the Windows Win32k kernel subsystem, and organizations should treat this as a high-priority remediation and detection task until every affected host in their estate is patched and verified. Background / Overview...
  20. CVE-2025-38502: Azure Linux BPF Risk and Microsoft Product Exposure

    Microsoft’s public attestation that Azure Linux includes the vulnerable Linux BPF component behind CVE‑2025‑38502 is accurate — but it is not a blanket assurance that Azure Linux is the only Microsoft product that could carry the same vulnerable upstream code. Background / Overview...