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CVE-2021-47086

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: refuse to enable an unbound pipe This ioctl() implicitly assumed that the socke…

Impact

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: refuse to enable an unbound pipe This ioctl() implicitly assumed that the socket was already bound to a valid local socket name, i.e. Phonet object. If the socket was not bound, two separate problems would occur: 1) We'd send an pipe enablement request with an invalid source object. 2) Later socket calls could BUG on the socket unexpectedly being connected yet not bound to a valid object.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
before 4.4.297
from 4.5 before 4.9.295
from 4.10 before 4.14.260
from 4.15 before 4.19.223
from 4.20 before 5.4.169
from 5.5 before 5.10.89

References