{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71149", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:30:19.662Z", "datePublished": "2026-01-23T14:15:15.878Z", "dateUpdated": "2026-01-23T14:15:15.878Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-01-23T14:15:15.878Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/poll: correctly handle io_poll_add() return value on update\n\nWhen the core of io_uring was updated to handle completions\nconsistently and with fixed return codes, the POLL_REMOVE opcode\nwith updates got slightly broken. If a POLL_ADD is pending and\nthen POLL_REMOVE is used to update the events of that request, if that\nupdate causes the POLL_ADD to now trigger, then that completion is lost\nand a CQE is never posted.\n\nAdditionally, ensure that if an update does cause an existing POLL_ADD\nto complete, that the completion value isn't always overwritten with\n-ECANCELED. For that case, whatever io_poll_add() set the value to\nshould just be retained."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["io_uring/poll.c"], "versions": [{"version": "97b388d70b53fd7d286ac1b81e5a88bd6af98209", "lessThan": "8b777ab48441b153502772ecfc78c107d4353f29", "status": "affected", "versionType": "git"}, {"version": "97b388d70b53fd7d286ac1b81e5a88bd6af98209", "lessThan": "0126560370ed5217958b85657b590ad25e8b9c00", "status": "affected", "versionType": "git"}, {"version": "97b388d70b53fd7d286ac1b81e5a88bd6af98209", "lessThan": "c1669c03bfbc2a9b5ebff4428eecebe734c646fe", "status": "affected", "versionType": "git"}, {"version": "97b388d70b53fd7d286ac1b81e5a88bd6af98209", "lessThan": "13a8f7b88c2d40c6b33f6216190478dda95d385f", "status": "affected", "versionType": "git"}, {"version": "97b388d70b53fd7d286ac1b81e5a88bd6af98209", "lessThan": "84230ad2d2afbf0c44c32967e525c0ad92e26b4e", "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/poll.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.160", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.64", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.3", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.120"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.18.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.19-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8b777ab48441b153502772ecfc78c107d4353f29"}, {"url": "https://git.kernel.org/stable/c/0126560370ed5217958b85657b590ad25e8b9c00"}, {"url": "https://git.kernel.org/stable/c/c1669c03bfbc2a9b5ebff4428eecebe734c646fe"}, {"url": "https://git.kernel.org/stable/c/13a8f7b88c2d40c6b33f6216190478dda95d385f"}, {"url": "https://git.kernel.org/stable/c/84230ad2d2afbf0c44c32967e525c0ad92e26b4e"}], "title": "io_uring/poll: correctly handle io_poll_add() return value on update", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/poll: correctly handle io_poll_add() return value on update\n\nWhen the core of io_uring was updated to handle completions\nconsistently and with fixed return codes, the POLL_REMOVE opcode\nwith updates got slightly broken. If a POLL_ADD is pending and\nthen POLL_REMOVE is used to update the events of that request, if that\nupdate causes the POLL_ADD to now trigger, then that completion is lost\nand a CQE is never posted.\n\nAdditionally, ensure that if an update does cause an existing POLL_ADD\nto complete, that the completion value isn't always overwritten with\n-ECANCELED. For that case, whatever io_poll_add() set the value to\nshould just be retained."}], "id": "CVE-2025-71149", "lastModified": "2026-01-23T15:16:05.630", "metrics": {}, "published": "2026-01-23T15:16:05.630", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0126560370ed5217958b85657b590ad25e8b9c00"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/13a8f7b88c2d40c6b33f6216190478dda95d385f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/84230ad2d2afbf0c44c32967e525c0ad92e26b4e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8b777ab48441b153502772ecfc78c107d4353f29"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c1669c03bfbc2a9b5ebff4428eecebe734c646fe"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}