CVE-2026-64520
CVE-2026-64520: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
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Red Hat
1 advisory- Advisory severityHigh7.0
High [CVE-2026-64520] Bound PARTITION_INFO_GET_REGS copies
CVE-2026-64520Source published Source updated
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies The register-based PARTITION_INFO_GET path trusted the firmware-provided indices when copying partition descriptors into the caller buffer. Reject inconsistent counts or index progressions so the copy loop cannot write past the allocated array. (fixed cur_idx when exactly one descriptor in the first fragment) A flaw was found in the Linux kernel's ARM Firmware Framework for ARM (FFA). The PARTITION_INFO_GET_REGS function, which handles copying partition descriptors, did not adequately validate the indices provided by the firmware. This oversight could allow the system to process inconsistent data, resulting in an out-of-bounds write. Such an issue can lead to memory…
- Affected products in this advisory
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- Source-reported affected versions
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- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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