What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-21 · updated 2026-06-17
• Weakness: CWE-476

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'.

Affected products

• Linux kernel: from 2.6.24 before 5.4.232; from 5.5 before 5.10.169; from 5.11 before 5.15.95; from 5.16 before 6.1.13; 6.2-rc1, 6.2-rc2, 6.2-rc3, 6.2-rc4, 6.2-rc5, 6.2-rc6 (+2) — fixed in 5.10.169, 5.15.95, 5.4.232, 6.1.13

How to fix

Upgrade to a fixed version: Linux kernel 5.10.169, 5.15.95, 5.4.232, 6.1.13. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0b3edcb24bd81b3b2e3dac89f4733bfd47d283be
• https://git.kernel.org/stable/c/82645bf4ed02abe930a659c5fe16d593a6dbd93f
• https://git.kernel.org/stable/c/cf4c9d2ac1e42c7d18b921bec39486896645b714
• https://git.kernel.org/stable/c/e9b488d60f51ae312006e224e03a30a151c28bdd
• https://git.kernel.org/stable/c/ecad2fafd424ffdc203b2748ded0b37e4bbecef3
• https://git.kernel.org/stable/c/0b3edcb24bd81b3b2e3dac89f4733bfd47d283be
• https://git.kernel.org/stable/c/82645bf4ed02abe930a659c5fe16d593a6dbd93f
• https://git.kernel.org/stable/c/cf4c9d2ac1e42c7d18b921bec39486896645b714
• https://git.kernel.org/stable/c/e9b488d60f51ae312006e224e03a30a151c28bdd
• https://git.kernel.org/stable/c/ecad2fafd424ffdc203b2748ded0b37e4bbecef3

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