Description (CNA)
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
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 40289e35ca525f29a03989352ab207b6a9675475 before 390d3baeba51a126f75c97b90ec28b9384ce4b84; affected 40289e35ca525f29a03989352ab207b6a9675475 before faf1715798fe72b79e4432ce8c6d03ca69765425; affected 40289e35ca525f29a03989352ab207b6a9675475 before 1e76b546e6fca7eb568161f408133904ca6bcf4f |
| Linux / Linux | affected 6.11; unaffected 0 before 6.11; unaffected 6.12.13 through 6.12.*; unaffected 6.13.2 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/390d3baeba51a126f75c97b90ec28b9384ce4b84
- https://git.kernel.org/stable/c/faf1715798fe72b79e4432ce8c6d03ca69765425
- https://git.kernel.org/stable/c/1e76b546e6fca7eb568161f408133904ca6bcf4f
ADP enrichment
No English description supplied.
No references supplied.