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THREAT OPSThreat News › [NVD] CVE-2026-80633 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: iommufd: Take dma_resv lock before dma_buf_unpin() in release path dma_buf_unpin() requires the caller to hold the exporter's dma_resv lock: void dma_buf_unpin(struct dma_buf_attachment *attach) {

[NVD] CVE-2026-80633 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: iommufd: Take dma_resv lock before dma_buf_unpin() in release path dma_buf_unpin() requires the caller to hold the exporter's dma_resv lock: void dma_buf_unpin(struct dma_buf_attachment *attach) {

mednvdPublished 2026-08-28

CVE-2026-80633 CVSS: 8.8 HIGH Published: 2026-08-28T08:16:48.200

In the Linux kernel, the following vulnerability has been resolved:

iommufd: Take dma_resv lock before dma_buf_unpin() in release path

dma_buf_unpin() requires the caller to hold the exporter's dma_resv lock:

void dma_buf_unpin(struct dma_buf_attachment *attach) { ... dma_resv_assert_held(dmabuf->resv);

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-80633