CVE-2023-52708 mmc: mmc_spi: fix error handling in mmc_spi_probe()

What is CVE-2023-52708?

CVE-2023-52708 is a medium-severity vulnerability in Linux kernel, published on 21 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

mmc: mmc_spi: fix error handling in mmc_spi_probe()

If mmc_add_host() fails, it doesn't need to call mmc_remove_host(), or it will cause null-ptr-deref, because of deleting a not added device in mmc_remove_host().

To fix this, goto label 'fail_glue_init', if mmc_add_host() fails, and change the label 'fail_add_host' to 'fail_gpiod_request'.

Weakness: CWE-476

Which versions are affected by CVE-2023-52708?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-52708?

Apply the vendor's patch.

Is CVE-2023-52708 being exploited?

There is no known exploitation of CVE-2023-52708 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2023-52708, DEBIAN-CVE-2023-52708, GHSA-5w29-44gv-2g38, UBUNTU-CVE-2023-52708.