CVE-2026-64372
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
cpufreq: pcc: fix use-after-free and double free in _OSC evaluation
In the Linux kernel, the following vulnerability has been resolved: cpufreq: pcc: fix use-after-free and double free in _OSC evaluation pcc_cpufreq_do_osc() calls acpi_evaluate_object() twice for the two-phase _OSC negotiation. Between the two calls it freed output.pointer but left output.length unchanged. Since acpi_evaluate_object() treats a non-zero length with a non-NULL pointer as an existing buffer to write into, the second call wrote into freed memory (use-after-free). The subsequent kfree(output.pointer) at out_free then freed the same pointer a second time (double free). Reset output.pointer to NULL and output.length to ACPI_ALLOCATE_BUFFER after freeing the first result, so ACPICA allocates a fresh buffer for each phase independently.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0f1d683fb35d6c6f49ef696c95757f3970682a0e | affected | git | 8e454e9d0bc03446d610ee49abec9dfd424f6541 | Unavailable | None listed |
| 0f1d683fb35d6c6f49ef696c95757f3970682a0e | affected | git | 632666a63116d8061c62a988d1ca39dcd6d27c9b | Unavailable | None listed |
| 0f1d683fb35d6c6f49ef696c95757f3970682a0e | affected | git | 5cdb25f144b101083d8bf3fd023ad87fbe6850d7 | Unavailable | None listed |
| 0f1d683fb35d6c6f49ef696c95757f3970682a0e | affected | git | 982c9f92d57bda2b769851ff6d90d43dcf5f3734 | Unavailable | None listed |
| 0f1d683fb35d6c6f49ef696c95757f3970682a0e | affected | git | a36ca93a8ba57464e521d70a337d37f069064111 | Unavailable | None listed |
| 0f1d683fb35d6c6f49ef696c95757f3970682a0e | affected | git | 6ba6f6783be2ffeb2cbcdc9321c4b9f708f796f7 | Unavailable | None listed |
| 0f1d683fb35d6c6f49ef696c95757f3970682a0e | affected | git | 0e3c739a2f6fc1de5b19a8839ab80696b9cb2a29 | Unavailable | None listed |
| 0f1d683fb35d6c6f49ef696c95757f3970682a0e | affected | git | 266d3dd8b757b48a576e90f018b51f7b7563cc32 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.34 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.34 | Unavailable | None listed |
| 5.10.261 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.212 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.96 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.39 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.4 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |