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CVE-2026-90224

Vulnérabilité élevée dans Linux (Linux)

CVSS 7.5 · Élevée
EPSS 0.4%
Linux•Linux•Versions : <6.6.157, <=6.1.*, <=6.12.*, <5.15.221, ca54e904a071aa65ef3ad46ba42d51aaac6b73b4, eb435d150ca74b4d40f77f1a2266f3636ed64a79, 4527025d440ce84bf56e75ce1df2e84cb8178616, 5.15.221, 5.10.270, 0, 7.0, 6.1.188, 6.18.52, d89b74bf08f067b55c03d7f999ba0a0e73177eb3, <9030a1bbe2c6b1e3e54cef462d159b5248f09fd2, <ba4c776af3dc21ed04e315e6545e99703bb1b53a, <8265a626cc14a48e46e6dc8c47667e72b4232ac2, <=5.10.*, <=6.6.*, 6.19.11, <cf646a9f5554bc07d6ccb59c327812b3a0c6a368, 6.6.157, 09143c0e8f3b03517e6233aad42f45c794d8df8e, <7.0, 1edc12d2bbcb7a8d0f1088e6fccb9d8c01bb1289, <ee08414d78b851e3d1856d6e4d631939b01a1bbe, 5.15.203, 7.2.6, <6.20, <3f075832734005310740d148d1cf1c1e792ebdca, <=6.18.*, 6.6.131, 5eef9ebec7f5738f12cadede3545c05b34bf5ac3, <5.10.270, <588ccd19a6e69eca72d54608c3ab3b45709b2305, 6.12.80, 6.12.110, <=7.2.*, 7ed00a3edc8597fe2333f524401e2889aa1b5edf, <6.12.110, <bfdf412208fea7fc0d5b32d68a35b25261917393, <6.18.52, <=*, 5.10.253, <=5.15.*, 6.1.168, <6.1.188, 6.18.21, 7.3

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix double completion race in nci_data_exchange_complete nci_close_device() and nci_rx_work can both call nci_data_exchange_complete() concurrently. After commit 4527025d440ce8 ("nfc: nci: fix circular locking dependency in nci_close_device") moved flush_workqueue(ndev->rx_wq) after mutex_unlock(&ndev->req_lock), rx_work is no longer serialized with the explicit completion call in the close path. Both callers read the non-NULL callback pointer and invoke rawsock_data_exchange_complete(), which calls sock_put() -- but only one sock_hold() was taken, so the second sock_put() underflows the refcount and frees the socket while it is still in use. Replace the bare clear_bit(NCI_DATA_EXCHANGE) with test_and_clear_bit() so that only the first caller proceeds to invoke the callback.

Gravité et risque d'exploitation

CVE-2026-90224 obtient un score CVSS de 7.5/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.36 %, ce qui la place devant 27.9 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions <6.6.157, <=6.1.*, <=6.12.*, <5.15.221, ca54e904a071aa65ef3ad46ba42d51aaac6b73b4, eb435d150ca74b4d40f77f1a2266f3636ed64a79, 4527025d440ce84bf56e75ce1df2e84cb8178616, 5.15.221, 5.10.270, 0, 7.0, 6.1.188, 6.18.52, d89b74bf08f067b55c03d7f999ba0a0e73177eb3, <9030a1bbe2c6b1e3e54cef462d159b5248f09fd2, <ba4c776af3dc21ed04e315e6545e99703bb1b53a, <8265a626cc14a48e46e6dc8c47667e72b4232ac2, <=5.10.*, <=6.6.*, 6.19.11, <cf646a9f5554bc07d6ccb59c327812b3a0c6a368, 6.6.157, 09143c0e8f3b03517e6233aad42f45c794d8df8e, <7.0, 1edc12d2bbcb7a8d0f1088e6fccb9d8c01bb1289, <ee08414d78b851e3d1856d6e4d631939b01a1bbe, 5.15.203, 7.2.6, <6.20, <3f075832734005310740d148d1cf1c1e792ebdca, <=6.18.*, 6.6.131, 5eef9ebec7f5738f12cadede3545c05b34bf5ac3, <5.10.270, <588ccd19a6e69eca72d54608c3ab3b45709b2305, 6.12.80, 6.12.110, <=7.2.*, 7ed00a3edc8597fe2333f524401e2889aa1b5edf, <6.12.110, <bfdf412208fea7fc0d5b32d68a35b25261917393, <6.18.52, <=*, 5.10.253, <=5.15.*, 6.1.168, <6.1.188, 6.18.21, 7.3) est présent sur votre parc.
  • Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
  • À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
  • Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

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