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CVE-2026-53321 io_uring/napi: cap busy_poll_to 10 msec

🗓️ 26 Jun 2026 19:41:12Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 10 Views

CVE-2026-53321 caps busy poll timeout to 10 ms in io_uring napi to prevent stalls.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-53321
26 Jun 202619:41
attackerkb
CVE
CVE-2026-53321
26 Jun 202619:41
cve
Debian CVE
CVE-2026-53321
26 Jun 202619:41
debiancve
EUVD
EUVD-2026-39856
26 Jun 202619:41
euvd
NVD
CVE-2026-53321
26 Jun 202620:17
nvd
Positive Technologies
PT-2026-52960
26 Jun 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "io_uring/napi.c"
    ],
    "versions": [
      {
        "version": "8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5",
        "lessThan": "39767f944a8c9e696566c37ad5b20131406c4b8d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5",
        "lessThan": "cb3af525f8dfb8930f0c123e5755fa967a12d5c1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5",
        "lessThan": "df8599ee18c0e5fe343ffe0b4c379636b8bb839a",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "io_uring/napi.c"
    ],
    "versions": [
      {
        "version": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.33",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.10",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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