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

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-06-24 16:30
VLAI
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
References
Impacted 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)
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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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{
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          "programFiles": [
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          "value": "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"
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      "providerMetadata": {
        "dateUpdated": "2026-06-24T16:30:23.568Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/b1f7158a86f3cbac4d5a32beb55ca0f8027d44cd"
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        },
        {
          "url": "https://git.kernel.org/stable/c/4406942e65ca128c56c67443832988873c21d2e9"
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      ],
      "title": "bpf: Fix RCU stall in bpf_fd_array_map_clear()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53083",
    "datePublished": "2026-06-24T16:30:23.568Z",
    "dateReserved": "2026-06-09T07:44:35.383Z",
    "dateUpdated": "2026-06-24T16:30:23.568Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53083",
      "date": "2026-07-02",
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      "percentile": "0.05204"
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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.

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  • 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.
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