CVE-2023-52984

Summary

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

net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices

The probe() function is only used for the DP83822 PHY, leaving the private data pointer uninitialized for the smaller DP83825/26 models. While all uses of the private data structure are hidden in 82822 specific callbacks, configuring the interrupt is shared across all models. This causes a NULL pointer dereference on the smaller PHYs as it accesses the private data unchecked. Verifying the pointer avoids that.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux5dc39fd5ef35bc6919759fa99246581b1adc6b82 < 362a2f5531dc0e5b0b5b3e3a541000dbffa75461affected
LinuxLinux5dc39fd5ef35bc6919759fa99246581b1adc6b82 < 2cd1e9c013ec56421c58921b1ddf1d2d53bd47faaffected
LinuxLinux5dc39fd5ef35bc6919759fa99246581b1adc6b82 < 78901b10522cdf6badf24acf65a892637596bcccaffected
LinuxLinux5dc39fd5ef35bc6919759fa99246581b1adc6b82 < 422ae7d9c7221e8d4c8526d0f54106307d69d2dcaffected
LinuxLinux5.10affected
LinuxLinux0 < 5.10unaffected
LinuxLinux5.10.168 <= 5.10.*unaffected
LinuxLinux5.15.93 <= 5.15.*unaffected
LinuxLinux6.1.11 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References