Description

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".

References 8

• git.kernel.org https://git.kernel.org/stable/c/289e2054eeb63c9e133960731c342eeffad218d3
• git.kernel.org https://git.kernel.org/stable/c/54cc10a0f4b01b522e9519014200f1b33bf7e4aa
• git.kernel.org https://git.kernel.org/stable/c/67d7eebbc424935dec61fb352d1ccae5d16cf429
• git.kernel.org https://git.kernel.org/stable/c/8b5bf64c89c7100c921bd807ba39b2eb003061ab
• git.kernel.org https://git.kernel.org/stable/c/919dd531ebb7514f205ae7aab87994337ebce1f6
• git.kernel.org https://git.kernel.org/stable/c/99744200f28b2cf5f50767447e51b4b4a977d145
• git.kernel.org https://git.kernel.org/stable/c/e0a9cc90ea44a50d76a84f9f9bf1703d31fe45e9
• git.kernel.org https://git.kernel.org/stable/c/ebdff0986513a29be242aace0ef89b6c105b0bf0

Remediation