Answer in brief
CVE-2026-64461 records a Unknown severity vulnerability in PCI: mediatek: Fix IRQ domain leak when port fails to enable. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-64461 records a Unknown severity vulnerability in PCI: mediatek: Fix IRQ domain leak when port fails to enable. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=b099631df160ec608cd6147f4d20a8042567a5b8 <e23da72ef202654a7d5269885c4fa39a8404db76 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <ec7c05eed47d8b15c45380aee7ca168a82e15035 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <1fbe8972a39548a633d06d7b03a01b7b119a2c12 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <fe8c701a53c2816cd82301f66c671d952003c1b0 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <ce52e494a7555bdae1d990a2654fd7547ef6d986 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <6e6a529d6f779413379b4404c9ef6a36c0337225 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2e || >=b099631df160ec608cd6147f4d20a8042567a5b8 <f865a57896bd92d7662eb2818d8f48872e2cbbc7 | e23da72ef202654a7d5269885c4fa39a8404db76, ec7c05eed47d8b15c45380aee7ca168a82e15035, 1fbe8972a39548a633d06d7b03a01b7b119a2c12, fe8c701a53c2816cd82301f66c671d952003c1b0, ce52e494a7555bdae1d990a2654fd7547ef6d986, 6e6a529d6f779413379b4404c9ef6a36c0337225, df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2e, f865a57896bd92d7662eb2818d8f48872e2cbbc7 |
| Linux/Linuxgeneric | 4.14 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Fix IRQ domain leak when port fails to enable When mtk_pcie_enable_port() fails, mtk_pcie_port_free() removes the port from pcie->ports and frees the port structure. However, the IRQ domains set up earlier by mtk_pcie_init_irq_domain() are never freed. Fix this by refactoring mtk_pcie_irq_teardown() into a per-port helper, mtk_pcie_irq_teardown_port(), and calling it from mtk_pcie_setup() when mtk_pcie_enable_port() fails. Since the IRQ teardown must only happen in the probe error path (during resume, child devices may have active MSI mappings and the NOIRQ context prohibits sleeping locks), mtk_pcie_enable_port() is changed to return an error code so callers can distinguish the two paths and act accordingly. This issue was reported by Sashiko while reviewing the EcoNet EN7528 SoC support series.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=b099631df160ec608cd6147f4d20a8042567a5b8 <e23da72ef202654a7d5269885c4fa39a8404db76 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <ec7c05eed47d8b15c45380aee7ca168a82e15035 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <1fbe8972a39548a633d06d7b03a01b7b119a2c12 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <fe8c701a53c2816cd82301f66c671d952003c1b0 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <ce52e494a7555bdae1d990a2654fd7547ef6d986 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <6e6a529d6f779413379b4404c9ef6a36c0337225 || >=b099631df160ec608cd6147f4d20a8042567a5b8 <df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2e || >=b099631df160ec608cd6147f4d20a8042567a5b8 <f865a57896bd92d7662eb2818d8f48872e2cbbc7 | e23da72ef202654a7d5269885c4fa39a8404db76, ec7c05eed47d8b15c45380aee7ca168a82e15035, 1fbe8972a39548a633d06d7b03a01b7b119a2c12, fe8c701a53c2816cd82301f66c671d952003c1b0, ce52e494a7555bdae1d990a2654fd7547ef6d986, 6e6a529d6f779413379b4404c9ef6a36c0337225, df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2e, f865a57896bd92d7662eb2818d8f48872e2cbbc7 |
| Linux/Linuxgeneric | 4.14 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Fix IRQ domain leak when port fails to enable When mtk_pcie_enable_port() fails, mtk_pcie_port_free() removes the port from pcie->ports and frees the port structure. However, the IRQ domains set up earlier by mtk_pcie_init_irq_domain() are never freed. Fix this by refactoring mtk_pcie_irq_teardown() into a per-port helper, mtk_pcie_irq_teardown_port(), and calling it from mtk_pcie_setup() when mtk_pcie_enable_port() fails. Since the IRQ teardown must only happen in the probe error path (during resume, child devices may have active MSI mappings and the NOIRQ context prohibits sleeping locks), mtk_pcie_enable_port() is changed to return an error code so callers can distinguish the two paths and act accordingly. This issue was reported by Sashiko while reviewing the EcoNet EN7528 SoC support series.
Quoted source text, attributed separately from HOL analysis.