CVE-2024-26975
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…
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0641908b906a133f1494c312a71f9fecbe2b6c78Patch
- https://git.kernel.org/stable/c/2d1f5006ff95770da502f8cee2a224a1ff83866ePatch
- https://git.kernel.org/stable/c/2f73cf2ae5e0f4e629db5be3a4380ff7807148e6Patch
- https://git.kernel.org/stable/c/9b254feb249981b66ccdb1dae54e757789a15ba1Patch
- https://git.kernel.org/stable/c/0641908b906a133f1494c312a71f9fecbe2b6c78Patch
- https://git.kernel.org/stable/c/2d1f5006ff95770da502f8cee2a224a1ff83866ePatch
- https://git.kernel.org/stable/c/2f73cf2ae5e0f4e629db5be3a4380ff7807148e6Patch
- https://git.kernel.org/stable/c/9b254feb249981b66ccdb1dae54e757789a15ba1Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.