Vulnerability Details CVE-2026-43422
In the Linux kernel, the following vulnerability has been resolved:
usb: legacy: ncm: Fix NPE in gncm_bind
Commit 56a512a9b410 ("usb: gadget: f_ncm: align net_device lifecycle
with bind/unbind") deferred the allocation of the net_device. This
change leads to a NULL pointer dereference in the legacy NCM driver as
it attempts to access the net_device before it's fully instantiated.
Store the provided qmult, host_addr, and dev_addr into the struct
ncm_opts->net_opts during gncm_bind(). These values will be properly
applied to the net_device when it is allocated and configured later in
the binding process by the NCM function driver.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 2.2%
CVSS Severity
CVSS v3 Score 5.5
References
Products affected by CVE-2026-43422
-
cpe:2.3:o:linux:linux_kernel:6.18.17
-
cpe:2.3:o:linux:linux_kernel:6.18.18
-
cpe:2.3:o:linux:linux_kernel:6.19.7
-
cpe:2.3:o:linux:linux_kernel:6.19.8
-
cpe:2.3:o:linux:linux_kernel:7.0