cve-2024-46692
Vulnerability from cvelistv5
Published
2024-09-13 05:29
Modified
2024-12-19 09:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: scm: Mark get_wq_ctx() as atomic call Currently get_wq_ctx() is wrongly configured as a standard call. When two SMC calls are in sleep and one SMC wakes up, it calls get_wq_ctx() to resume the corresponding sleeping thread. But if get_wq_ctx() is interrupted, goes to sleep and another SMC call is waiting to be allocated a waitq context, it leads to a deadlock. To avoid this get_wq_ctx() must be an atomic call and can't be a standard SMC call. Hence mark get_wq_ctx() as a fast call.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9960085a3a82c58d3323c1c20b991db6045063b0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cdf7efe4b02aa93813db0bf1ca596ad298ab6b06Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e40115c33c0d79c940545b6b12112aace7acd9f5Patch
Impacted products
Vendor Product Version
Linux Linux Version: 6bf32599223634294cdc6efb359ffaab1d68073c
Version: 6bf32599223634294cdc6efb359ffaab1d68073c
Version: 6bf32599223634294cdc6efb359ffaab1d68073c
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   Linux Linux Version: 6.3
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