CVE-2025-37822 (GCVE-0-2025-37822)

Vulnerability from cvelistv5 – Published: 2025-05-08 06:26 – Updated: 2026-05-11 21:15
VLAI
Title
riscv: uprobes: Add missing fence.i after building the XOL buffer
Summary
In the Linux kernel, the following vulnerability has been resolved: riscv: uprobes: Add missing fence.i after building the XOL buffer The XOL (execute out-of-line) buffer is used to single-step the replaced instruction(s) for uprobes. The RISC-V port was missing a proper fence.i (i$ flushing) after constructing the XOL buffer, which can result in incorrect execution of stale/broken instructions. This was found running the BPF selftests "test_progs: uprobe_autoattach, attach_probe" on the Spacemit K1/X60, where the uprobes tests randomly blew up.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 74784081aac8a0f3636965fc230e2d3b7cc123c6 , < be6d98766ac952d38241d5a5b213f363afa421c3 (git)
Affected: 74784081aac8a0f3636965fc230e2d3b7cc123c6 , < b6d8d4d01ca8514fa89b05355f296758a91e2297 (git)
Affected: 74784081aac8a0f3636965fc230e2d3b7cc123c6 , < 77c956152a3a7c7a18b68f3654f70565b2181d03 (git)
Affected: 74784081aac8a0f3636965fc230e2d3b7cc123c6 , < bcf6d3158c5902d92b6d62335af4422b7bf7c4e2 (git)
Affected: 74784081aac8a0f3636965fc230e2d3b7cc123c6 , < 1dbb95a36499374c51b47ee8ae258a8862c20978 (git)
Affected: 74784081aac8a0f3636965fc230e2d3b7cc123c6 , < 7d1d19a11cfbfd8bae1d89cc010b2cc397cd0c48 (git)
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Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.200 , ≤ 5.15.* (semver)
Unaffected: 6.1.163 , ≤ 6.1.* (semver)
Unaffected: 6.6.121 , ≤ 6.6.* (semver)
Unaffected: 6.12.26 , ≤ 6.12.* (semver)
Unaffected: 6.14.5 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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The RISC-V port was missing a\\nproper fence.i (i$ flushing) after constructing the XOL buffer, which\\ncan result in incorrect execution of stale/broken instructions.\\n\\nThis was found running the BPF selftests \\\"test_progs:\\nuprobe_autoattach, attach_probe\\\" on the Spacemit K1/X60, where the\\nuprobes tests randomly blew up.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: riscv: uprobes: A\u00f1adir un archivo \\\"fence.i\\\" faltante tras la construcci\u00f3n del b\u00fafer XOL. El b\u00fafer XOL (ejecuci\u00f3n fuera de l\u00ednea) se utiliza para ejecutar paso a paso las instrucciones reemplazadas para uprobes. El puerto RISC-V carec\u00eda de un archivo \\\"fence.i\\\" adecuado (vaciado de i$) tras la construcci\u00f3n del b\u00fafer XOL, lo que puede provocar la ejecuci\u00f3n incorrecta de instrucciones obsoletas o da\u00f1adas. 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      "cve": "CVE-2025-37822",
      "id": "CVE-2025-37822",
      "initial_release_date": "2025-05-08T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: riscv: uprobes: Add missing fence.i after building the XOL buffer",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-37822.json",
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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

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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.