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{"bugzilla": {"description": "kernel: iio: buffer: hw-consumer: fix use-after-free in error path", "id": "2502450", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502450"}, "csaw": false, "cwe": "CWE-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\niio: buffer: hw-consumer: fix use-after-free in error path\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.\nFix this by using list_for_each_entry_safe().", "A flaw was found in the Linux kernel's Industrial I/O (IIO) hardware consumer buffer component. This use-after-free vulnerability occurs in the `err_put_buffers` cleanup path of `iio_hw_consumer_alloc()`. During buffer cleanup, the code incorrectly uses `list_for_each_entry()` to iterate through buffers while simultaneously freeing them, which can lead to accessing memory that has already been released. This memory corruption could result in a denial of service or potentially lead to arbitrary code execution."], "name": "CVE-2026-63930", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63930\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63930\nhttps://lore.kernel.org/linux-cve-announce/2026071950-CVE-2026-63930-6bca@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[48b66f8f936f369bb1a43c12aedbfeb2975baf4c,b71893c57730809c222766e5718bb33610f11963)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[48b66f8f936f369bb1a43c12aedbfeb2975baf4c,2ff615fc455acda5425c4900160cbe11cfea4449)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[48b66f8f936f369bb1a43c12aedbfeb2975baf4c,d2759d49860b9a39b5cde2fb88e4b822ddf5f58f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[48b66f8f936f369bb1a43c12aedbfeb2975baf4c,29783e6b6ec0b7152a15e53a063f17537e81177d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[48b66f8f936f369bb1a43c12aedbfeb2975baf4c,e965627f0d442bfcae3f496c90cb653fb0917a61)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[48b66f8f936f369bb1a43c12aedbfeb2975baf4c,a3763ae33476328cf8d661742deb9daec78eac96)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[48b66f8f936f369bb1a43c12aedbfeb2975baf4c,9319c94f63ed10723afd738d79f5617daba87cc8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[48b66f8f936f369bb1a43c12aedbfeb2975baf4c,6f5ed4f2c7c83f33344e0ba179f72a12e5dad4a4)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.259,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.210,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.176,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.143,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.93,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.35,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.12,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-21T23:30:03.998094+00:00", "updated": "2026-07-22T04:45:02.576626+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}