CVE-2023-52984 (GCVE-0-2023-52984)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:43 – Updated: 2025-10-01 17:20
VLAI?
Title
net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5dc39fd5ef35bc6919759fa99246581b1adc6b82 , < 362a2f5531dc0e5b0b5b3e3a541000dbffa75461 (git)
Affected: 5dc39fd5ef35bc6919759fa99246581b1adc6b82 , < 2cd1e9c013ec56421c58921b1ddf1d2d53bd47fa (git)
Affected: 5dc39fd5ef35bc6919759fa99246581b1adc6b82 , < 78901b10522cdf6badf24acf65a892637596bccc (git)
Affected: 5dc39fd5ef35bc6919759fa99246581b1adc6b82 , < 422ae7d9c7221e8d4c8526d0f54106307d69d2dc (git)
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    Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.168 , ≤ 5.10.* (semver)
Unaffected: 5.15.93 , ≤ 5.15.* (semver)
Unaffected: 6.1.11 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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