CVE-2026-68345
- Source
- https://cve.org/CVERecord?id=CVE-2026-68345
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68345.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-68345
- Downstream
- Published
- 2026-08-10T12:03:22Z
- Modified
- 2026-08-18T03:30:50Z
- Summary
- arm_mpam: guard MBWU state before adding it to garbage
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
arm_mpam: guard MBWU state before adding it to garbage
__destroy_component_cfg() adds each RIS mbwu_state object to the MPAM garbage list when destroying component configuration.
However, mbwu_state is allocated per RIS and only for RISes with MBWU monitors. A component can therefore have comp->cfg allocated while some RISes still have ris->mbwu_state set to NULL.
Passing a NULL mbwu_state to add_to_garbage() dereferences the NULL pointer inside the macro.
Skip RISes that do not have an mbwu_state object before adding them to the garbage list.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68345.json" }- References
-
- https://git.kernel.org/stable/c/977f52909c624210178a1247fab0b02b110c1106
- https://git.kernel.org/stable/c/ca1f96334267ab8d47b2c9d535cdc9920fdde269
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68345.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-68345
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git