Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1488ac990ac886b1209aa9f94c0c66022bcc8827 to < 0641908b906a133f1494c312a71f9fecbe2b6c78affected1488ac990ac886b1209aa9f94c0c66022bcc8827 to < 9b254feb249981b66ccdb1dae54e757789a15ba1affected1488ac990ac886b1209aa9f94c0c66022bcc8827 to < 2f73cf2ae5e0f4e629db5be3a4380ff7807148e6affected1488ac990ac886b1209aa9f94c0c66022bcc8827 to < 2d1f5006ff95770da502f8cee2a224a1ff83866eaffected
Linux Linux
Default version status: affected
6.5affected0 to < 6.5unaffected6.6.24 to ≤ 6.6.*unaffected6.7.12 to ≤ 6.7.*unaffected6.8.3 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected