What’s Vulnerable › Vulnerabilities

CVE-2023-53724: mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-22 · updated 2026-10-28

Description

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.

Affected products

• Linux kernel: 2.6.29 — fixed in 6.3

How to fix

Upgrade to a fixed version: Linux kernel 6.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3ee13bdf0d25ae8752ae6185b6d13bbb0d5a8e30
• https://git.kernel.org/stable/c/41cdf082ae006ea002135dfaf43b2897de3bded8
• https://git.kernel.org/stable/c/588edb4fb1f1e6487a0f60a5f7b9a24d2d0c9f8e
• https://git.kernel.org/stable/c/66616eed76dfa6f3e442907760325a023c6da7e2
• https://git.kernel.org/stable/c/6a8a02dcfae13ab07dc7bed2b409cec7f3d32e92
• https://git.kernel.org/stable/c/8b450dcff23aa254844492831a8e2b508a9d522d
• https://git.kernel.org/stable/c/9cca3a4933ca365cc664d5eefb0f942374ea8b41
• https://git.kernel.org/stable/c/a62a5e79202967176a9c1a04e477860779accd6c

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