Bug 2324631 (CVE-2024-50181)

Summary: CVE-2024-50181 kernel: clk: imx: Remove CLK_SET_PARENT_GATE for DRAM mux for i.MX7D
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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[REJECTED CVE] In the Linux kernel, the following vulnerability has been resolved: clk: imx: Remove CLK_SET_PARENT_GATE for DRAM mux for i.MX7D For i.MX7D DRAM related mux clock, the clock source change should ONLY be done done in low level asm code without accessing DRAM, and then calling clk API to sync the HW clock status with clk tree, it should never touch real clock source switch via clk API, so CLK_SET_PARENT_GATE flag should NOT be added, otherwise, DRAM's clock parent will be disabled when DRAM is active, and system will hang.
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Bug Depends On: 2324664    
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Description OSIDB Bzimport 2024-11-08 13:49:32 UTC
In the Linux kernel, the following vulnerability has been resolved:

clk: imx: Remove CLK_SET_PARENT_GATE for DRAM mux for i.MX7D

For i.MX7D DRAM related mux clock, the clock source change should ONLY
be done done in low level asm code without accessing DRAM, and then
calling clk API to sync the HW clock status with clk tree, it should never
touch real clock source switch via clk API, so CLK_SET_PARENT_GATE flag
should NOT be added, otherwise, DRAM's clock parent will be disabled when
DRAM is active, and system will hang.

Comment 2 TEJ RATHI 2025-05-16 05:13:58 UTC
This CVE has been rejected upstream: https://lore.kernel.org/linux-cve-announce/2025030354-REJECTED-88bf@gregkh/