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CVE-2025-40315

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.2%
Linux•Linux•Versions : <=6.1.*, <=6.12.*, 32048f4be071f9a6966744243f1786f45bb22dc2, 6.17.8, 0, <c53e90563bc148e4e0ad09fe130ba2246d426ea6, 72a8aee863af099d4434314c4536d6c9a61dcf3c, <30880e9df27332403dd638a82c27921134b3630b, c9fc422c9a43e3d58d246334a71f3390401781dc, 0042178a69eb77a979e36a50dcce9794a3140ef8, <9ec40fba7357df2d36f4c2e2f3b9b1a4fba0a272, <5.17, <b00d2572c16e8e59e979960d3383c2ae9cebd195, 5.4.180, 6.18, <4.20, 5.10.247, <=5.10.*, <=6.6.*, <d62b808d5c68a931ad0849a00a5e3be3dd7e0019, 5.15.24, ebe2b1add1055b903e2acd86b290a85297edc0b3, 4.19.230, 5.4.302, 4.14.267, <5.10.247, <=5.4.*, <fc1141a530dfc91f0ee19b7f422a2d24829584bc, <cfd6f1a7b42f62523c96d9703ef32b0dbc495ba4, 3e078b18753669615301d946297bafd69294ad2c, 6.6.117, 5.10.101, 5.15.197, 6.1.159, 6.12.58, cfe5f6fd335d882bcc829a1c8a7d462a455c626e, <=*, <=5.15.*, <=6.17.*, 5.16.10, <5.4.302, <4.15, 5.17, <1c0dbd240be3f87cac321b14e17979b7e9cb6a8f, <5.15.197

Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_fs: Fix epfile null pointer access after ep enable. A race condition occurs when ffs_func_eps_enable() runs concurrently with ffs_data_reset(). The ffs_data_clear() called in ffs_data_reset() sets ffs->epfiles to NULL before resetting ffs->eps_count to 0, leading to a NULL pointer dereference when accessing epfile->ep in ffs_func_eps_enable() after successful usb_ep_enable(). The ffs->epfiles pointer is set to NULL in both ffs_data_clear() and ffs_data_close() functions, and its modification is protected by the spinlock ffs->eps_lock. And the whole ffs_func_eps_enable() function is also protected by ffs->eps_lock. Thus, add NULL pointer handling for ffs->epfiles in the ffs_func_eps_enable() function to fix issues

Gravité et risque d'exploitation

CVE-2025-40315 obtient un score CVSS de 0.0/10, soit une gravité non évaluée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.20 %, ce qui la place devant 9.4 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions <=6.1.*, <=6.12.*, 32048f4be071f9a6966744243f1786f45bb22dc2, 6.17.8, 0, <c53e90563bc148e4e0ad09fe130ba2246d426ea6, 72a8aee863af099d4434314c4536d6c9a61dcf3c, <30880e9df27332403dd638a82c27921134b3630b, c9fc422c9a43e3d58d246334a71f3390401781dc, 0042178a69eb77a979e36a50dcce9794a3140ef8, <9ec40fba7357df2d36f4c2e2f3b9b1a4fba0a272, <5.17, <b00d2572c16e8e59e979960d3383c2ae9cebd195, 5.4.180, 6.18, <4.20, 5.10.247, <=5.10.*, <=6.6.*, <d62b808d5c68a931ad0849a00a5e3be3dd7e0019, 5.15.24, ebe2b1add1055b903e2acd86b290a85297edc0b3, 4.19.230, 5.4.302, 4.14.267, <5.10.247, <=5.4.*, <fc1141a530dfc91f0ee19b7f422a2d24829584bc, <cfd6f1a7b42f62523c96d9703ef32b0dbc495ba4, 3e078b18753669615301d946297bafd69294ad2c, 6.6.117, 5.10.101, 5.15.197, 6.1.159, 6.12.58, cfe5f6fd335d882bcc829a1c8a7d462a455c626e, <=*, <=5.15.*, <=6.17.*, 5.16.10, <5.4.302, <4.15, 5.17, <1c0dbd240be3f87cac321b14e17979b7e9cb6a8f, <5.15.197) 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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