CVE-2025-40092
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
usb: gadget: f_ncm: Refactor bind path to use __free()
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
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 9f6ce4240a2bf456402c15c06768059e5973f28c | affected | git | 185193a4714aa9c78437a7a1858fbe5771f0f45c | Unavailable | None listed |
| 9f6ce4240a2bf456402c15c06768059e5973f28c | affected | git | f37de8dec6a4c379b4b8486003a1de00ff8cff3b | Unavailable | None listed |
| 9f6ce4240a2bf456402c15c06768059e5973f28c | affected | git | 1cde4516295a030cb8ab4c93114ca3b6c3c6a1e2 | Unavailable | None listed |
| 9f6ce4240a2bf456402c15c06768059e5973f28c | affected | git | d3fe7143928d8dfa2ec7bac9f906b48bc75b98ee | Unavailable | None listed |
| 9f6ce4240a2bf456402c15c06768059e5973f28c | affected | git | ed78f4d6079d872432b1ed54f155ef61965d3137 | Unavailable | None listed |
| 9f6ce4240a2bf456402c15c06768059e5973f28c | affected | git | 75a5b8d4ddd4eb6b16cb0b475d14ff4ae64295ef | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.38 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.38 | Unavailable | None listed |
| 5.15.196 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.158 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.114 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.55 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.17.5 | unaffected | semver | Unavailable | 6.17.* | None listed |
| 6.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |