CVE-2025-37948 (GCVE-0-2025-37948)

Vulnerability from cvelistv5 – Published: 2025-05-20 16:01 – Updated: 2026-05-11 21:18
VLAI
Title
arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs
Summary
In the Linux kernel, the following vulnerability has been resolved: arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs A malicious BPF program may manipulate the branch history to influence what the hardware speculates will happen next. On exit from a BPF program, emit the BHB mititgation sequence. This is only applied for 'classic' cBPF programs that are loaded by seccomp.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0be7320a635c2e434e8b67e0e9474a85ceb421c4 , < c6a8735d841bcb7649734bb3a787bb174c67c0d8 (git)
Affected: 0be7320a635c2e434e8b67e0e9474a85ceb421c4 , < 993f63239c219696aef8887a4e7d3a16bf5a8ece (git)
Affected: 0be7320a635c2e434e8b67e0e9474a85ceb421c4 , < 8fe5c37b0e08a97cf0210bb75970e945aaaeebab (git)
Affected: 0be7320a635c2e434e8b67e0e9474a85ceb421c4 , < 42a20cf51011788f04cf2adbcd7681f02bdb6c27 (git)
Affected: 0be7320a635c2e434e8b67e0e9474a85ceb421c4 , < 38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78 (git)
Affected: 0be7320a635c2e434e8b67e0e9474a85ceb421c4 , < 852b8ae934b5cbdc62496fa56ce9969aa2edda7f (git)
Affected: 0be7320a635c2e434e8b67e0e9474a85ceb421c4 , < 0dfefc2ea2f29ced2416017d7e5b1253a54c2735 (git)
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Linux Linux Affected: 3.7
Unaffected: 0 , < 3.7 (semver)
Unaffected: 5.10.239 , ≤ 5.10.* (semver)
Unaffected: 5.15.186 , ≤ 5.15.* (semver)
Unaffected: 6.1.139 , ≤ 6.1.* (semver)
Unaffected: 6.6.91 , ≤ 6.6.* (semver)
Unaffected: 6.12.29 , ≤ 6.12.* (semver)
Unaffected: 6.14.7 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.