{"id":"CVE-2026-90224","title":"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","summary":"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 c…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 7ed00a3edc8597fe2333f524401e2889aa1b5edf < 3f075832734005310740d148d1cf1c1e792ebdca","Linux >= 5eef9ebec7f5738f12cadede3545c05b34bf5ac3 < 588ccd19a6e69eca72d54608c3ab3b45709b2305","Linux >= ca54e904a071aa65ef3ad46ba42d51aaac6b73b4 < cf646a9f5554bc07d6ccb59c327812b3a0c6a368","Linux >= eb435d150ca74b4d40f77f1a2266f3636ed64a79 < 9030a1bbe2c6b1e3e54cef462d159b5248f09fd2","Linux >= 1edc12d2bbcb7a8d0f1088e6fccb9d8c01bb1289 < bfdf412208fea7fc0d5b32d68a35b25261917393","Linux >= d89b74bf08f067b55c03d7f999ba0a0e73177eb3 < ba4c776af3dc21ed04e315e6545e99703bb1b53a","Linux >= 4527025d440ce84bf56e75ce1df2e84cb8178616 < ee08414d78b851e3d1856d6e4d631939b01a1bbe","Linux >= 4527025d440ce84bf56e75ce1df2e84cb8178616 < 8265a626cc14a48e46e6dc8c47667e72b4232ac2","Linux 09143c0e8f3b03517e6233aad42f45c794d8df8e","Linux >= 5.10.253 < 5.10.270","Linux >= 5.15.203 < 5.15.221","Linux >= 6.1.168 < 6.1.188","Linux >= 6.6.131 < 6.6.157","Linux >= 6.12.80 < 6.12.110","Linux >= 6.18.21 < 6.18.52","Linux >= 6.19.11 < 6.20","Linux 7.0"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:47.140","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90224","references":[{"url":"https://git.kernel.org/stable/c/3f075832734005310740d148d1cf1c1e792ebdca","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/588ccd19a6e69eca72d54608c3ab3b45709b2305","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8265a626cc14a48e46e6dc8c47667e72b4232ac2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9030a1bbe2c6b1e3e54cef462d159b5248f09fd2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ba4c776af3dc21ed04e315e6545e99703bb1b53a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bfdf412208fea7fc0d5b32d68a35b25261917393","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cf646a9f5554bc07d6ccb59c327812b3a0c6a368","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ee08414d78b851e3d1856d6e4d631939b01a1bbe","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00298,"epssPercentile":0.22745,"ingestedAt":"2026-09-17T16:21:47.854Z","slug":"CVE-2026-90224","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":207187,"id":"CVE-2026-90224","ts":1789757339498,"field":"cvss","old":null,"new":"7.5"},{"seq":207186,"id":"CVE-2026-90224","ts":1789757339498,"field":"severity","old":"none","new":"high"}]}