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io_uring: defer eventfd signaling when queued from a wakeup handler

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2026-80920

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/io_uring_types.h",
                        "io_uring/eventfd.c",
                        "io_uring/eventfd.h",
                        "io_uring/futex.c",
                        "io_uring/io_uring.c",
                        "io_uring/poll.c",
                        "io_uring/tw.c",
                        "io_uring/waitid.c"
                    ],
                    "versions": [
                        {
                            "version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
                            "lessThan": "d0c240f25e654442a72af5ca021a02165ccce638",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
                            "lessThan": "9d984451baf768ecd9e1fdad4637b729fcb2c9d5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
                            "lessThan": "e22f4494cc9487d326e5e3067f33dea7c1e442b2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
                            "lessThan": "b6bb334b0e9348887e3e55e1f494b0c3b8fbf59f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
                            "lessThan": "40b6ccf68731809ceb85c6e9f0f8f2ed61c7aa5a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "21a091b970cdbcf3e8ff829234b51be6f9192766",
                            "lessThan": "cd305ee3633a45fcf5f3a5d83f99f3cb77d87b6e",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/io_uring_types.h",
                        "io_uring/eventfd.c",
                        "io_uring/eventfd.h",
                        "io_uring/futex.c",
                        "io_uring/io_uring.c",
                        "io_uring/poll.c",
                        "io_uring/tw.c",
                        "io_uring/waitid.c"
                    ],
                    "versions": [
                        {
                            "version": "6.1",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.114",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.49",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.11",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.1",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 8 Nov 10:10 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current