What’s Vulnerable › Vulnerabilities

CVE-2022-48632: i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction()

• Severity: high (CVSS 7.8 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: 2024-04-28 · updated 2026-08-04
• Weakness: CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction() memcpy() is called in a loop while 'operation->length' upper bound is not checked and 'data_idx' also increments.

Affected products

• Linux kernel: from 5.10 before 5.10.146; from 5.11 before 5.15.71; from 5.16 before 5.19.12; 6.0-rc1, 6.0-rc2, 6.0-rc3, 6.0-rc4, 6.0-rc5, 6.0-rc6 — fixed in 5.10.146, 5.15.71, 5.19.12

How to fix

Upgrade to a fixed version: Linux kernel 5.10.146, 5.15.71, 5.19.12. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3b5ab5fbe69ebbee5692c72b05071a43fc0655d8
• https://git.kernel.org/stable/c/48ee0a864d1af02eea98fc825cc230d61517a71e
• https://git.kernel.org/stable/c/dc2a0c587006f29b724069740c48654b9dcaebd2
• https://git.kernel.org/stable/c/de24aceb07d426b6f1c59f33889d6a964770547b
• https://git.kernel.org/stable/c/3b5ab5fbe69ebbee5692c72b05071a43fc0655d8
• https://git.kernel.org/stable/c/48ee0a864d1af02eea98fc825cc230d61517a71e
• https://git.kernel.org/stable/c/dc2a0c587006f29b724069740c48654b9dcaebd2
• https://git.kernel.org/stable/c/de24aceb07d426b6f1c59f33889d6a964770547b

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