CVE-2023-52462 (GCVE-0-2023-52462)

Vulnerability from cvelistv5 – Published: 2024-02-23 14:46 – Updated: 2026-05-23 15:25
VLAI
Title
bpf: fix check for attempt to corrupt spilled pointer
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: fix check for attempt to corrupt spilled pointer When register is spilled onto a stack as a 1/2/4-byte register, we set slot_type[BPF_REG_SIZE - 1] (plus potentially few more below it, depending on actual spill size). So to check if some stack slot has spilled register we need to consult slot_type[7], not slot_type[0]. To avoid the need to remember and double-check this in the future, just use is_spilled_reg() helper.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-25 18:04 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6665 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: cdd73a5ed0840da88a3b9ad353f568e6f156d417 , < 2757f17972d87773b3677777f5682510f13c66ef (git)
Affected: 07c286c10a9cedbd71f20269ff3a4e73d9aab2fe , < 67e6707f07354ed1acb4e65552e97c60cf9d69cf (git)
Affected: 27113c59b6d0a587b29ae72d4ff3f832f58b0651 , < fc3e3c50a0a4cac1463967c110686189e4a59104 (git)
Affected: 27113c59b6d0a587b29ae72d4ff3f832f58b0651 , < 8dc15b0670594543c356567a1a45b0182ec63174 (git)
Affected: 27113c59b6d0a587b29ae72d4ff3f832f58b0651 , < 40617d45ea05535105e202a8a819e388a2b1f036 (git)
Affected: 27113c59b6d0a587b29ae72d4ff3f832f58b0651 , < ab125ed3ec1c10ccc36bc98c7a4256ad114a3dae (git)
Affected: 5.10.163 , < 5.10.209 (semver)
Affected: 5.15.86 , < 5.15.148 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 5.10.209 , ≤ 5.10.* (semver)
Unaffected: 5.15.148 , ≤ 5.15.* (semver)
Unaffected: 6.1.75 , ≤ 6.1.* (semver)
Unaffected: 6.6.14 , ≤ 6.6.* (semver)
Unaffected: 6.7.2 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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}



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