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CVE-2026-80782

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.2%
Linux•Linux•Versions : 7.2.1, 6.1.185, <=6.1.*, 7.1.11, <=6.12.*, 5.10.269, 6.12.106, 0, <3.9, <=7.1.*, 6.6.154, <403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14, 0e55072e7c63a6569cab1447e9025d160abd9dd9, f1a9a149abc86903e81dd1b2e720f3f89874384b, <=5.10.*, <0af3b89705688af01aa06025b84fa7a1e06ba6cc, <=6.6.*, <9bdf8c7bfd79f1090e61d28f969b32880fd77bb3, <=6.18.*, 6.18.47, <0bf253e9ac994cb5329bc87b00bb4eeca9136791, 7.3, <=7.2.*, <3d7a7bac4c75f25b2513505a0ac5ba909588ed2b, <e0c224c93d10ee38854fdf24c815108aedd3dcb3, <=*, <=5.15.*, 3.8.7, <15b60ade825c8ce9ec560048a4ae3747e4572be3, <c3597923932bb90d4fc2186aef552f6677175e4a, <2ef16934e069d5f771e989d6ee5c3ece5042f3cd, 5.15.218, 3.9

Description

In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: do not keep a stale msc->input if no input is claimed magicmouse_input_mapping() caches the first hid_input's input_dev in msc->input while the report descriptor is parsed, and the rest of the driver treats a non-NULL msc->input as proof that an input device was registered. That does not hold on the hid-input error path. If hidinput_connect() fails -- for instance because input_register_device() returns an error -- it unwinds through hidinput_disconnect(), which frees every input_dev it created, including the one cached in msc->input. The failure does not abort the probe. hid_connect() only skips the claim: if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, connect_mask & HID_CONNECT_HIDINPUT_FORCE)) hdev->claimed |= HID_CLAIMED_INPUT; and the "device has no listeners" bailout below it does not fire for this driver, which sets ->raw_event; on the USB Magic Mouse 2 / Magic Trackpad 2 paths hidraw and hiddev are claimed as well. hid_hw_start() therefore returns 0 and magicmouse_probe() continues with msc->input pointing at freed memory. Being non-NULL, it passes the "input not registered" check in probe and the NULL checks in ->raw_event and ->event, so the next input report dereferences freed memory. Clear msc->input when the HID core did not claim an input device, so the existing NULL checks cover this case as well.

Gravité et risque d'exploitation

CVE-2026-80782 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 0.19 %, ce qui la place devant 8.6 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions 7.2.1, 6.1.185, <=6.1.*, 7.1.11, <=6.12.*, 5.10.269, 6.12.106, 0, <3.9, <=7.1.*, 6.6.154, <403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14, 0e55072e7c63a6569cab1447e9025d160abd9dd9, f1a9a149abc86903e81dd1b2e720f3f89874384b, <=5.10.*, <0af3b89705688af01aa06025b84fa7a1e06ba6cc, <=6.6.*, <9bdf8c7bfd79f1090e61d28f969b32880fd77bb3, <=6.18.*, 6.18.47, <0bf253e9ac994cb5329bc87b00bb4eeca9136791, 7.3, <=7.2.*, <3d7a7bac4c75f25b2513505a0ac5ba909588ed2b, <e0c224c93d10ee38854fdf24c815108aedd3dcb3, <=*, <=5.15.*, 3.8.7, <15b60ade825c8ce9ec560048a4ae3747e4572be3, <c3597923932bb90d4fc2186aef552f6677175e4a, <2ef16934e069d5f771e989d6ee5c3ece5042f3cd, 5.15.218, 3.9) 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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