Bug 2405739 (CVE-2023-53725)

Summary: CVE-2023-53725 kernel: clocksource/drivers/cadence-ttc: Fix memory leak in ttc_timer_probe
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-10-22 14:03:34 UTC 
In the Linux kernel, the following vulnerability has been resolved:

clocksource/drivers/cadence-ttc: Fix memory leak in ttc_timer_probe

Smatch reports:
drivers/clocksource/timer-cadence-ttc.c:529 ttc_timer_probe()
warn: 'timer_baseaddr' from of_iomap() not released on lines: 498,508,516.

timer_baseaddr may have the problem of not being released after use,
I replaced it with the devm_of_iomap() function and added the clk_put()
function to cleanup the "clk_ce" and "clk_cs".
Comment 1 Jon Moroney 2025-10-22 17:30:55 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025102215-CVE-2023-53725-0343@gregkh/T