NetSight
high8.8

CVE-2023-52502

In the Linux kernel, the following vulnerability has been resolved: net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn() Sili Luo reported a r…

Impact

In the Linux kernel, the following vulnerability has been resolved: net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn() Sili Luo reported a race in nfc_llcp_sock_get(), leading to UAF. Getting a reference on the socket found in a lookup while holding a lock should happen before releasing the lock. nfc_llcp_sock_get_sn() has a similar problem. Finally nfc_llcp_recv_snl() needs to make sure the socket found by nfc_llcp_sock_from_sn() does not disappear.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 3.6 before 4.19.297
from 4.20 before 5.4.259
from 5.5 before 5.10.199
from 5.11 before 5.15.136
from 5.16 before 6.1.59
from 6.2 before 6.5.8

Weakness classification

References