{"id":"CVE-2026-90224","revision":"817484ea874a46e89cc7a6dc9b9901e0","records":[{"revision":"817484ea874a46e89cc7a6dc9b9901e0","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90224","aliases":[],"title":"nfc: nci: fix double completion race in nci_data_exchange_complete","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: nci: fix double completion race in nci_data_exchange_complete\n\nnci_close_device() and nci_rx_work can both call\nnci_data_exchange_complete() concurrently.  After commit 4527025d440ce8\n(\"nfc: nci: fix circular locking dependency in nci_close_device\") moved\nflush_workqueue(ndev->rx_wq) after mutex_unlock(&ndev->req_lock),\nrx_work is no longer serialized with the explicit completion call in the\nclose path.  Both callers read the non-NULL callback pointer and invoke\nrawsock_data_exchange_complete(), which calls sock_put() -- but only one\nsock_hold() was taken, so the second sock_put() underflows the refcount\nand frees the socket while it is still in use.\n\nReplace the bare clear_bit(NCI_DATA_EXCHANGE) with\ntest_and_clear_bit() so that only the first caller proceeds to invoke\nthe callback.","state":0,"publishedAt":"2026-09-17T16:07:34.009+00:00","modifiedAt":"2026-10-19T09:00:00.751+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/nfc/nci/data.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7ed00a3edc8597fe2333f524401e2889aa1b5edf\",\n                            \"lessThan\": \"3f075832734005310740d148d1cf1c1e792ebdca\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5eef9ebec7f5738f12cadede3545c05b34bf5ac3\",\n                            \"lessThan\": \"588ccd19a6e69eca72d54608c3ab3b45709b2305\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ca54e904a071aa65ef3ad46ba42d51aaac6b73b4\",\n                            \"lessThan\": \"cf646a9f5554bc07d6ccb59c327812b3a0c6a368\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"eb435d150ca74b4d40f77f1a2266f3636ed64a79\",\n                            \"lessThan\": \"9030a1bbe2c6b1e3e54cef462d159b5248f09fd2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1edc12d2bbcb7a8d0f1088e6fccb9d8c01bb1289\",\n                            \"lessThan\": \"bfdf412208fea7fc0d5b32d68a35b25261917393\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d89b74bf08f067b55c03d7f999ba0a0e73177eb3\",\n                            \"lessThan\": \"ba4c776af3dc21ed04e315e6545e99703bb1b53a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4527025d440ce84bf56e75ce1df2e84cb8178616\",\n                            \"lessThan\": \"ee08414d78b851e3d1856d6e4d631939b01a1bbe\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4527025d440ce84bf56e75ce1df2e84cb8178616\",\n                            \"lessThan\": \"8265a626cc14a48e46e6dc8c47667e72b4232ac2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"09143c0e8f3b03517e6233aad42f45c794d8df8e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5.10.253\",\n                            \"lessThan\": \"5.10.270\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.203\",\n                            \"lessThan\": \"5.15.221\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.168\",\n                            \"lessThan\": \"6.1.188\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.131\",\n                            \"lessThan\": \"6.6.157\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.80\",\n                            \"lessThan\": \"6.12.110\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.21\",\n                            \"lessThan\": \"6.18.52\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.11\",\n                            \"lessThan\": \"6.20\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/nfc/nci/data.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/3f075832734005310740d148d1cf1c1e792ebdca","https://git.kernel.org/stable/c/588ccd19a6e69eca72d54608c3ab3b45709b2305","https://git.kernel.org/stable/c/cf646a9f5554bc07d6ccb59c327812b3a0c6a368","https://git.kernel.org/stable/c/9030a1bbe2c6b1e3e54cef462d159b5248f09fd2","https://git.kernel.org/stable/c/bfdf412208fea7fc0d5b32d68a35b25261917393","https://git.kernel.org/stable/c/ba4c776af3dc21ed04e315e6545e99703bb1b53a","https://git.kernel.org/stable/c/ee08414d78b851e3d1856d6e4d631939b01a1bbe","https://git.kernel.org/stable/c/8265a626cc14a48e46e6dc8c47667e72b4232ac2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90224","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90224","identifiers":["CVE-2026-90224"]},"retained":false,"historicalAffected":[]}],"coverage":[]}