{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63930", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.021Z", "datePublished": "2026-07-19T14:55:30.016Z", "dateUpdated": "2026-07-20T13:41:38.070Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-20T13:41:38.070Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: hw-consumer: fix use-after-free in error path\n\nIn the err_put_buffers cleanup path of iio_hw_consumer_alloc(), the code\nwas using list_for_each_entry() to iterate through buffers while calling\niio_buffer_put() which can free the current buffer if refcount drops to 0.\nThe list_for_each_entry() loop macro then evaluates buf->head.next to\ncontinue iteration, accessing the freed buffer.\n\nFix this by using list_for_each_entry_safe()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/buffer/industrialio-hw-consumer.c"], "versions": [{"version": "48b66f8f936f369bb1a43c12aedbfeb2975baf4c", "lessThan": "b71893c57730809c222766e5718bb33610f11963", "status": "affected", "versionType": "git"}, {"version": "48b66f8f936f369bb1a43c12aedbfeb2975baf4c", "lessThan": "2ff615fc455acda5425c4900160cbe11cfea4449", "status": "affected", "versionType": "git"}, {"version": "48b66f8f936f369bb1a43c12aedbfeb2975baf4c", "lessThan": "d2759d49860b9a39b5cde2fb88e4b822ddf5f58f", "status": "affected", "versionType": "git"}, {"version": "48b66f8f936f369bb1a43c12aedbfeb2975baf4c", "lessThan": "29783e6b6ec0b7152a15e53a063f17537e81177d", "status": "affected", "versionType": "git"}, {"version": "48b66f8f936f369bb1a43c12aedbfeb2975baf4c", "lessThan": "e965627f0d442bfcae3f496c90cb653fb0917a61", "status": "affected", "versionType": "git"}, {"version": "48b66f8f936f369bb1a43c12aedbfeb2975baf4c", "lessThan": "a3763ae33476328cf8d661742deb9daec78eac96", "status": "affected", "versionType": "git"}, {"version": "48b66f8f936f369bb1a43c12aedbfeb2975baf4c", "lessThan": "9319c94f63ed10723afd738d79f5617daba87cc8", "status": "affected", "versionType": "git"}, {"version": "48b66f8f936f369bb1a43c12aedbfeb2975baf4c", "lessThan": "6f5ed4f2c7c83f33344e0ba179f72a12e5dad4a4", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/buffer/industrialio-hw-consumer.c"], "versions": [{"version": "4.16", "status": "affected"}, {"version": "0", "lessThan": "4.16", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.259", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.210", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.176", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.143", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.93", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.35", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.12", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "4.16", "versionEndExcluding": "5.10.259"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "5.15.210"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.1.176"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.6.143"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.12.93"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.18.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "7.0.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b71893c57730809c222766e5718bb33610f11963"}, {"url": "https://git.kernel.org/stable/c/2ff615fc455acda5425c4900160cbe11cfea4449"}, {"url": "https://git.kernel.org/stable/c/d2759d49860b9a39b5cde2fb88e4b822ddf5f58f"}, {"url": "https://git.kernel.org/stable/c/29783e6b6ec0b7152a15e53a063f17537e81177d"}, {"url": "https://git.kernel.org/stable/c/e965627f0d442bfcae3f496c90cb653fb0917a61"}, {"url": "https://git.kernel.org/stable/c/a3763ae33476328cf8d661742deb9daec78eac96"}, {"url": "https://git.kernel.org/stable/c/9319c94f63ed10723afd738d79f5617daba87cc8"}, {"url": "https://git.kernel.org/stable/c/6f5ed4f2c7c83f33344e0ba179f72a12e5dad4a4"}], "title": "iio: buffer: hw-consumer: fix use-after-free in error path", "x_generator": {"engine": "bippy-1.2.0"}}}}

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