CVE-2024-57985

firmware: qcom: scm: Cleanup global '__scm' on probe failures

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: scm: Cleanup global '__scm' on probe failures If SCM driver fails the probe, it should not leave global '__scm' variable assigned, because external users of this driver will assume the probe finished successfully. For example TZMEM parts ('__scm->mempool') are initialized later in the probe, but users of it (__scm_smc_call()) rely on the '__scm' variable. This fixes theoretical NULL pointer exception, triggered via introducing probe deferral in SCM driver with call trace: qcom_tzmem_alloc+0x70/0x1ac (P) qcom_tzmem_alloc+0x64/0x1ac (L) qcom_scm_assign_mem+0x78/0x194 qcom_rmtfs_mem_probe+0x2d4/0x38c platform_probe+0x68/0xc8

N/A

CVSS

Severity:

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/390d3baeba51a126f75c97b90ec28b9384ce4b84
https://git.kernel.org/stable/c/faf1715798fe72b79e4432ce8c6d03ca69765425
https://git.kernel.org/stable/c/1e76b546e6fca7eb568161f408133904ca6bcf4f

Frequently Asked Questions

What is the severity of CVE-2024-57985?: CVE-2024-57985 has not yet been assigned a CVSS score.
How to fix CVE-2024-57985?: To fix CVE-2024-57985, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-57985 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-57985 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-57985?: CVE-2024-57985 affects Linux Linux, Linux Linux.

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