CVE-2025-40311
- Source
- https://cve.org/CVERecord?id=CVE-2025-40311
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40311.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-40311
- Downstream
- Related
- Published
- 2025-12-08T00:46:36.903Z
- Modified
- 2026-03-20T12:43:15.520373Z
- Summary
- accel/habanalabs: support mapping cb with vmalloc-backed coherent memory
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
accel/habanalabs: support mapping cb with vmalloc-backed coherent memory
When IOMMU is enabled, dmaalloccoherent() with GFPUSER may return addresses from the vmalloc range. If such an address is mapped without VMMIXEDMAP, vminsertpage() will trigger a BUGON due to the VMPFNMAP restriction.
Fix this by checking for vmalloc addresses and setting VM_MIXEDMAP in the VMA before mapping. This ensures safe mapping and avoids kernel crashes. The memory is still driver-allocated and cannot be accessed directly by userspace.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40311.json" }- References
-
- https://git.kernel.org/stable/c/513024d5a0e34fd34247043f1876b6138ca52847
- https://git.kernel.org/stable/c/73c7c2cdb442fc4160d2a2a4bfffbd162af06cb9
- https://git.kernel.org/stable/c/7ec8ac9f73d4a9438c2186768d6de27ace37531e
- https://git.kernel.org/stable/c/d1dfe21a332d38a6a09658ec29a55940afb5fe36
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40311.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40311
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedac0ae6a96aa58eeba4aed97b12ef1dea8c5bf399Fixed7ec8ac9f73d4a9438c2186768d6de27ace37531eFixedd1dfe21a332d38a6a09658ec29a55940afb5fe36Fixed73c7c2cdb442fc4160d2a2a4bfffbd162af06cb9Fixed513024d5a0e34fd34247043f1876b6138ca52847