CVE-2024-46692
firmware: qcom: scm: Mark get_wq_ctx() as atomic call
Reported by linux · Published September 13, 2024
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| Linux | Linux | e40115c33c0d79c940545b6b12112aace7acd9f5, cdf7efe4b02aa93813db0bf1ca596ad298ab6b06, 9960085a3a82c58d3323c1c20b991db6045063b0 |
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 6bf32599223634294cdc6efb359ffaab1d68073c, 6bf32599223634294cdc6efb359ffaab1d68073c, 6bf32599223634294cdc6efb359ffaab1d68073c |
| Linux | Linux | 6.3, 0, 6.6.49 |
| Linux | Linux | 6.11, 0, 6.6.49 |
| linux | linux_kernel | 6.3, 6.3, 6.3 |
Timeline
- Sep 12, 2024 CVE Published
- Sep 14, 2024 EPSS Score (30 in total, the first dated here)
- Oct 5, 2024 Coalition ESS Score (7 in total, the first dated here)
- Jan 4, 2026 Security Advisory (60 in total, the first dated here)
- May 11, 2026 CVE Updated
- May 28, 2026 Distribution Patch (48 in total, the first dated here)
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