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.