Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
b099631df160ec608cd6147f4d20a8042567a5b8 to < e23da72ef202654a7d5269885c4fa39a8404db76affectedb099631df160ec608cd6147f4d20a8042567a5b8 to < ec7c05eed47d8b15c45380aee7ca168a82e15035affectedb099631df160ec608cd6147f4d20a8042567a5b8 to < 1fbe8972a39548a633d06d7b03a01b7b119a2c12affectedb099631df160ec608cd6147f4d20a8042567a5b8 to < fe8c701a53c2816cd82301f66c671d952003c1b0affectedb099631df160ec608cd6147f4d20a8042567a5b8 to < ce52e494a7555bdae1d990a2654fd7547ef6d986affectedb099631df160ec608cd6147f4d20a8042567a5b8 to < 6e6a529d6f779413379b4404c9ef6a36c0337225affectedb099631df160ec608cd6147f4d20a8042567a5b8 to < df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2eaffectedb099631df160ec608cd6147f4d20a8042567a5b8 to < f865a57896bd92d7662eb2818d8f48872e2cbbc7affected
Linux Linux
Default version status: affected
4.14affected0 to < 4.14unaffected5.10.261 to ≤ 5.10.*unaffected5.15.212 to ≤ 5.15.*unaffected6.1.178 to ≤ 6.1.*unaffected6.6.145 to ≤ 6.6.*unaffected6.12.97 to ≤ 6.12.*unaffected6.18.39 to ≤ 6.18.*unaffected7.1.4 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/e23da72ef202654a7d5269885c4fa39a8404db76 ↗
- https://git.kernel.org/stable/c/ec7c05eed47d8b15c45380aee7ca168a82e15035 ↗
- https://git.kernel.org/stable/c/1fbe8972a39548a633d06d7b03a01b7b119a2c12 ↗
- https://git.kernel.org/stable/c/fe8c701a53c2816cd82301f66c671d952003c1b0 ↗
- https://git.kernel.org/stable/c/ce52e494a7555bdae1d990a2654fd7547ef6d986 ↗
- https://git.kernel.org/stable/c/6e6a529d6f779413379b4404c9ef6a36c0337225 ↗
- https://git.kernel.org/stable/c/df77314b3bedbd9ad5d6f0682f98b99e3c5f7e2e ↗
- https://git.kernel.org/stable/c/f865a57896bd92d7662eb2818d8f48872e2cbbc7 ↗