Vulnerability-Lookup

GHSA-XPM3-XHGJ-HJ4X

Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-07-23 21:30

Details

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

bpf: Fix RCU stall in bpf_fd_array_map_clear()

Add a missing cond_resched() in bpf_fd_array_map_clear() loop.

For PROG_ARRAY maps with many entries this loop calls prog_array_map_poke_run() per entry which can be expensive, and without yielding this can cause RCU stalls under load:

rcu: Stack dump where RCU GP kthread last ran: CPU: 0 UID: 0 PID: 30932 Comm: kworker/0:2 Not tainted 6.14.0-13195-g967e8def1100 #2 PREEMPT(undef) Workqueue: events prog_array_map_clear_deferred RIP: 0010:write_comp_data+0x38/0x90 kernel/kcov.c:246 Call Trace: prog_array_map_poke_run+0x77/0x380 kernel/bpf/arraymap.c:1096 __fd_array_map_delete_elem+0x197/0x310 kernel/bpf/arraymap.c:925 bpf_fd_array_map_clear kernel/bpf/arraymap.c:1000 [inline] prog_array_map_clear_deferred+0x119/0x1b0 kernel/bpf/arraymap.c:1141 process_one_work+0x898/0x19d0 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x770/0x10b0 kernel/workqueue.c:3400 kthread+0x465/0x880 kernel/kthread.c:464 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x19/0x30 arch/x86/entry/entry_64.S:245

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53083"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:22Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix RCU stall in bpf_fd_array_map_clear()\n\nAdd a missing cond_resched() in bpf_fd_array_map_clear() loop.\n\nFor PROG_ARRAY maps with many entries this loop calls\nprog_array_map_poke_run() per entry which can be expensive, and\nwithout yielding this can cause RCU stalls under load:\n\n  rcu: Stack dump where RCU GP kthread last ran:\n  CPU: 0 UID: 0 PID: 30932 Comm: kworker/0:2 Not tainted 6.14.0-13195-g967e8def1100 #2 PREEMPT(undef)\n  Workqueue: events prog_array_map_clear_deferred\n  RIP: 0010:write_comp_data+0x38/0x90 kernel/kcov.c:246\n  Call Trace:\n   \u003cTASK\u003e\n   prog_array_map_poke_run+0x77/0x380 kernel/bpf/arraymap.c:1096\n   __fd_array_map_delete_elem+0x197/0x310 kernel/bpf/arraymap.c:925\n   bpf_fd_array_map_clear kernel/bpf/arraymap.c:1000 [inline]\n   prog_array_map_clear_deferred+0x119/0x1b0 kernel/bpf/arraymap.c:1141\n   process_one_work+0x898/0x19d0 kernel/workqueue.c:3238\n   process_scheduled_works kernel/workqueue.c:3319 [inline]\n   worker_thread+0x770/0x10b0 kernel/workqueue.c:3400\n   kthread+0x465/0x880 kernel/kthread.c:464\n   ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153\n   ret_from_fork_asm+0x19/0x30 arch/x86/entry/entry_64.S:245\n   \u003c/TASK\u003e",
  "id": "GHSA-xpm3-xhgj-hj4x",
  "modified": "2026-07-23T21:30:33Z",
  "published": "2026-06-24T18:32:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53083"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4406942e65ca128c56c67443832988873c21d2e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67bdb4b0d26f2d6bbf1798a925ef5a3b9ed7357a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/71ddb7defc442ab38c53123c384fedbfd8410a15"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1f7158a86f3cbac4d5a32beb55ca0f8027d44cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e1ed678855e315f90c70c1723e94157a9a82e660"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-53083 (GCVE-0-2026-53083)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-06-24 16:30

Title

bpf: Fix RCU stall in bpf_fd_array_map_clear()

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix RCU stall in bpf_fd_array_map_clear() Add a missing cond_resched() in bpf_fd_array_map_clear() loop. For PROG_ARRAY maps with many entries this loop calls prog_array_map_poke_run() per entry which can be expensive, and without yielding this can cause RCU stalls under load: rcu: Stack dump where RCU GP kthread last ran: CPU: 0 UID: 0 PID: 30932 Comm: kworker/0:2 Not tainted 6.14.0-13195-g967e8def1100 #2 PREEMPT(undef) Workqueue: events prog_array_map_clear_deferred RIP: 0010:write_comp_data+0x38/0x90 kernel/kcov.c:246 Call Trace: <TASK> prog_array_map_poke_run+0x77/0x380 kernel/bpf/arraymap.c:1096 __fd_array_map_delete_elem+0x197/0x310 kernel/bpf/arraymap.c:925 bpf_fd_array_map_clear kernel/bpf/arraymap.c:1000 [inline] prog_array_map_clear_deferred+0x119/0x1b0 kernel/bpf/arraymap.c:1141 process_one_work+0x898/0x19d0 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x770/0x10b0 kernel/workqueue.c:3400 kthread+0x465/0x880 kernel/kthread.c:464 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x19/0x30 arch/x86/entry/entry_64.S:245 </TASK>

Severity

No CVSS data available.

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/b1f7158a86f3cbac4…
https://git.kernel.org/stable/c/71ddb7defc442ab38…
https://git.kernel.org/stable/c/e1ed678855e315f90…
https://git.kernel.org/stable/c/67bdb4b0d26f2d6bb…
https://git.kernel.org/stable/c/4406942e65ca128c5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: da765a2f599304a81a25e77908d1790414ecdbb6 , < b1f7158a86f3cbac4d5a32beb55ca0f8027d44cd (git) Affected: da765a2f599304a81a25e77908d1790414ecdbb6 , < 71ddb7defc442ab38c53123c384fedbfd8410a15 (git) Affected: da765a2f599304a81a25e77908d1790414ecdbb6 , < e1ed678855e315f90c70c1723e94157a9a82e660 (git) Affected: da765a2f599304a81a25e77908d1790414ecdbb6 , < 67bdb4b0d26f2d6bbf1798a925ef5a3b9ed7357a (git) Affected: da765a2f599304a81a25e77908d1790414ecdbb6 , < 4406942e65ca128c56c67443832988873c21d2e9 (git)
Linux	Linux	Affected: 5.5 Unaffected: 0 , < 5.5 (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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JSON

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          "programFiles": [
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              "versionType": "semver"
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              "versionType": "semver"
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            }
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        },
        {
          "url": "https://git.kernel.org/stable/c/4406942e65ca128c56c67443832988873c21d2e9"
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    "datePublished": "2026-06-24T16:30:23.568Z",
    "dateReserved": "2026-06-09T07:44:35.383Z",
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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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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