Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: powercap: intel_rapl: Fix a NULL pointer dereference A NULL pointer dereference is triggered when probing the MMIO RAPL driver on platforms with CPU ID not listed in intel_rapl_common CPU model list. This is because the intel_rapl_common module still probes on such platforms even if 'defaults_msr' is not set after commit 1488ac990ac8 ("powercap: intel_rapl: Allow probing without CPUID match"). Thus the MMIO RAPL rp->priv->defaults is NULL when registering to RAPL framework. Fix the problem by adding sanity check to ensure rp->priv->rapl_defaults is always valid.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1488ac990ac886b1209aa9f94c0c66022bcc8827 before 0641908b906a133f1494c312a71f9fecbe2b6c78; affected 1488ac990ac886b1209aa9f94c0c66022bcc8827 before 9b254feb249981b66ccdb1dae54e757789a15ba1; affected 1488ac990ac886b1209aa9f94c0c66022bcc8827 before 2f73cf2ae5e0f4e629db5be3a4380ff7807148e6; affected 1488ac990ac886b1209aa9f94c0c66022bcc8827 before 2d1f5006ff95770da502f8cee2a224a1ff83866e |
| Linux / Linux | affected 6.5; unaffected 0 before 6.5; unaffected 6.6.24 through 6.6.*; unaffected 6.7.12 through 6.7.*; unaffected 6.8.3 through 6.8.*; unaffected 6.9 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0641908b906a133f1494c312a71f9fecbe2b6c78
- https://git.kernel.org/stable/c/9b254feb249981b66ccdb1dae54e757789a15ba1
- https://git.kernel.org/stable/c/2f73cf2ae5e0f4e629db5be3a4380ff7807148e6
- https://git.kernel.org/stable/c/2d1f5006ff95770da502f8cee2a224a1ff83866e
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.