What’s Vulnerable › Vulnerabilities

CVE-2022-50642: platform/chrome: cros_ec_typec: zero out stale pointers

• 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: 2025-12-09 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: platform/chrome: cros_ec_typec: zero out stale pointers `cros_typec_get_switch_handles` allocates four pointers when obtaining type-c switch handles. These pointers are all freed if failing to obtain any of them; therefore, pointers in `port` become stale. The stale pointers eventually cause use-after-free or double free in later code paths. Zeroing out all pointer fields after freeing to eliminate these stale pointers.

Affected products

• Linux kernel: 5.9 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40
• https://git.kernel.org/stable/c/6613f36a2fa5c69e528bccba8b3d831f759dad2f
• https://git.kernel.org/stable/c/9a8aadcf0b459c1257b9477fd6402e1d5952ae07
• https://git.kernel.org/stable/c/b610758bb3e0674644c1255cdafc2f46b7e05ff9

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