CVE-2026-53067
- Source
- https://cve.org/CVERecord?id=CVE-2026-53067
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53067.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-53067
- Downstream
- Published
- 2026-06-24T16:30:09.492Z
- Modified
- 2026-07-16T03:32:33.806877334Z
- Summary
- PCI: endpoint: pci-ep-msi: Fix error unwind and prevent double alloc
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
PCI: endpoint: pci-ep-msi: Fix error unwind and prevent double alloc
pciepfallocdoorbell() stores the allocated doorbell message array in epf->dbmsg/epf->num_db before requesting MSI vectors. If MSI allocation fails, the array is freed but the EPF state may still point to freed memory.
Clear epf->dbmsg and epf->numdb on the MSI allocation failure path so that later cleanup cannot double-free the array and callers can retry allocation.
Also return -EBUSY when doorbells have already been allocated to prevent leaking or overwriting an existing allocation.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53067.json" }- References
-
- https://git.kernel.org/stable/c/175717cfc06cab79f84cd037d66dda1b8564cd9e
- https://git.kernel.org/stable/c/1cba96c0a795124c3229293ed7b5b5765e66f259
- https://git.kernel.org/stable/c/3c25587fbf8797b92090b064a6d239a873e55fb1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53067.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-53067
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git