CVE-2022-50439 Details
Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: mt8173: Enable IRQ when pdata is ready If the device does not come straight from reset, we might receive an IRQ before we are ready to handle it. [ 2.334737] Unable to handle kernel read from unreadable memory at virtual address 00000000000001e4 [ 2.522601] Call trace: [ 2.525040] regmap_read+0x1c/0x80 [ 2.528434] mt8173_afe_irq_handler+0x40/0xf0 ... [ 2.598921] start_kernel+0x338/0x42c
A vulnerability in the Linux kernel's handling of interrupts for the Mediatek MT8173 Audio Framework Engine (AFE) platform driver has been addressed. The issue arose because the driver could receive an interrupt request (IRQ) before it was fully prepared to process it, particularly if the device had not been reset. This premature IRQ handling led to a kernel error when attempting to read from an inaccessible memory location, causing a crash. The vulnerability has been fixed by ensuring that the IRQ is only enabled when the driver is ready to handle it.
Users can update to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for downloading the patched kernel are available on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/190685ff4ee03eef8f12c71d8f626e414fa078a9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/27e7cf595d4a9fea9d3906b47d0faa87896beeb3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/4cbb264d4e9136acab2c8fd39e39ab1b1402b84b | kernel.org | Patch |
| https://git.kernel.org/stable/c/57491967ad8f865a9a81d08c36b26facd14d84e5 | kernel.org | Patch |
| https://git.kernel.org/stable/c/77c6b6be7e80ca4a4d4b66b63fd5bb48ccefdd5a | kernel.org | Patch |
| https://git.kernel.org/stable/c/9ce9c78a2bdbc9a014e7102a35834310c28528b9 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.2, < 5.4.229 >= 5.5, < 5.10.163 >= 5.11, < 5.15.86 >= 5.16, < 6.0.16 >= 6.1, < 6.1.2 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jan 21, 2026 | Initial Analysis | [email protected] |
| Oct 1, 2025 | New CVE Received | kernel.org |