In the Linux kernel, the following vulnerability has been resolved: mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read() `req` is allocated in pcf50633_adc_async_read(), but adc_enqueue_request() could fail to insert the `req` into queue. We need to check the return value and free it in the case of failure.
https://git.kernel.org/stable/c/a62a5e79202967176a9c1a04e477860779accd6c
https://git.kernel.org/stable/c/9cca3a4933ca365cc664d5eefb0f942374ea8b41
https://git.kernel.org/stable/c/8b450dcff23aa254844492831a8e2b508a9d522d
https://git.kernel.org/stable/c/6a8a02dcfae13ab07dc7bed2b409cec7f3d32e92
https://git.kernel.org/stable/c/66616eed76dfa6f3e442907760325a023c6da7e2
https://git.kernel.org/stable/c/588edb4fb1f1e6487a0f60a5f7b9a24d2d0c9f8e
https://git.kernel.org/stable/c/41cdf082ae006ea002135dfaf43b2897de3bded8
https://git.kernel.org/stable/c/3ee13bdf0d25ae8752ae6185b6d13bbb0d5a8e30