Vulnerability-Lookup

GHSA-82QR-PQHC-837W

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33

Details

In the Linux kernel, the following vulnerability has been resolved:

afs: Fix callback service message parsers to pass through -EAGAIN

The AFS filesystem client uses an rxrpc server to listen for callback notifications. Each callback call type handler has a delivery function that parses the incoming request stream, and this should return -EAGAIN the last packet hasn't yet been seen, but all currently queued received data is consumed. afs_extract_data() does this, but the -EAGAIN return is switched to 0 inadvertantly

Fix callback service message parsers to pass through -EAGAIN

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72374"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:10Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix callback service message parsers to pass through -EAGAIN\n\nThe AFS filesystem client uses an rxrpc server to listen for callback\nnotifications.  Each callback call type handler has a delivery function\nthat parses the incoming request stream, and this should return -EAGAIN the\nlast packet hasn\u0027t yet been seen, but all currently queued received data is\nconsumed.  afs_extract_data() does this, but the -EAGAIN return is switched\nto 0 inadvertantly\n\nFix callback service message parsers to pass through -EAGAIN",
  "id": "GHSA-82qr-pqhc-837w",
  "modified": "2026-08-17T06:33:26Z",
  "published": "2026-08-15T06:32:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72374"
    },
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      "url": "https://git.kernel.org/stable/c/09c67a7ded481482155b836c8c7f078a3075f8de"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0acbc09d2aca0432af45cec114f20d55ceafaec4"
    },
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      "url": "https://git.kernel.org/stable/c/239cd337c9d047e7097f5b2ebbb41ddfb8180bc6"
    },
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      "type": "CVSS_V3"
    }
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}

CVE-2026-72374 (GCVE-0-2026-72374)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:56 – Updated: 2026-10-16 18:55

Title

afs: Fix callback service message parsers to pass through -EAGAIN

Summary

In the Linux kernel, the following vulnerability has been resolved: afs: Fix callback service message parsers to pass through -EAGAIN The AFS filesystem client uses an rxrpc server to listen for callback notifications. Each callback call type handler has a delivery function that parses the incoming request stream, and this should return -EAGAIN the last packet hasn't yet been seen, but all currently queued received data is consumed. afs_extract_data() does this, but the -EAGAIN return is switched to 0 inadvertantly Fix callback service message parsers to pass through -EAGAIN

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 18:48 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6992 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/26b737b3769e92493…
https://git.kernel.org/stable/c/09c67a7ded4814821…
https://git.kernel.org/stable/c/239cd337c9d047e70…
https://git.kernel.org/stable/c/5a39b145a8fb49f31…
https://git.kernel.org/stable/c/772850871a2e772e2…
https://git.kernel.org/stable/c/0acbc09d2aca0432a…
https://git.kernel.org/stable/c/f14dd036fad3d359f…
https://git.kernel.org/stable/c/0f36469d7ce98b362…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 , < 26b737b3769e92493fe94c34620399d93ca231ae (git) Affected: d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 , < 09c67a7ded481482155b836c8c7f078a3075f8de (git) Affected: d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 , < 239cd337c9d047e7097f5b2ebbb41ddfb8180bc6 (git) Affected: d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 , < 5a39b145a8fb49f316e7ec1f29ba51d68095c7e4 (git) Affected: d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 , < 772850871a2e772e26f9d93f1e9ddd413b3eeaa4 (git) Affected: d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 , < 0acbc09d2aca0432af45cec114f20d55ceafaec4 (git) Affected: d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 , < f14dd036fad3d359f26f1282199cec06b3a9362b (git) Affected: d001648ec7cf8b21ae9eec8b9ba4a18295adfb14 , < 0f36469d7ce98b362934113c550d08bb0c784231 (git)
Linux	Linux	Affected: 4.9 Unaffected: 0 , < 4.9 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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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.

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