CVE-2025-40092

usb: gadget: f_ncm: Refactor bind path to use __free()

HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.15 % · percentile 5 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_ncm: Refactor bind path to use __free() After an bind/unbind cycle, the ncm->notify_req is left stale. If a subsequent bind fails, the unified error label attempts to free this stale request, leading to a NULL pointer dereference when accessing ep->ops->free_request. Refactor the error handling in the bind path to use the __free() automatic cleanup mechanism. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 Call trace: usb_ep_free_request+0x2c/0xec ncm_bind+0x39c/0x3dc usb_add_function+0xcc/0x1f0 configfs_composite_bind+0x468/0x588 gadget_bind_driver+0x104/0x270 really_probe+0x190/0x374 __driver_probe_device+0xa0/0x12c driver_probe_device+0x3c/0x218 __device_attach_driver+0x14c/0x188 bus_for_each_drv+0x10c/0x168 __device_attach+0xfc/0x198 device_initial_probe+0x14/0x24 bus_probe_device+0x94/0x11c device_add+0x268/0x48c usb_add_gadget+0x198/0x28c dwc3_gadget_init+0x700/0x858 __dwc3_set_mode+0x3cc/0x664 process_scheduled_works+0x1d8/0x488 worker_thread+0x244/0x334 kthread+0x114/0x1bc ret_from_fork+0x10/0x20

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected 9f6ce4240a2bf456402c15c06768059e5973f28c < 185193a4714aa9c78437a7a1858fbe5771f0f45c ; affected 9f6ce4240a2bf456402c15c06768059e5973f28c < f37de8dec6a4c379b4b8486003a1de00ff8cff3b ; affected 9f6ce4240a2bf456402c15c06768059e5973f28c < 1cde4516295a030cb8ab4c93114ca3b6c3c6a1e2 ; affected 9f6ce4240a2bf456402c15c06768059e5973f28c < d3fe7143928d8dfa2ec7bac9f906b48bc75b98ee ; affected 9f6ce4240a2bf456402c15c06768059e5973f28c < ed78f4d6079d872432b1ed54f155ef61965d3137 ; affected 9f6ce4240a2bf456402c15c06768059e5973f28c < 75a5b8d4ddd4eb6b16cb0b475d14ff4ae64295ef
Linux · Linuxaffected 2.6.38 ; unaffected 0 < 2.6.38 ; unaffected 5.15.196 ≤ 5.15.* ; unaffected 6.1.158 ≤ 6.1.* ; unaffected 6.6.114 ≤ 6.6.* ; unaffected 6.12.55 ≤ 6.12.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD