kernel: Race condition access to n_hdlc.tbuf causes double free in n_hdlc_release()

A race condition flaw was found in the NHLDC Linux kernel driver when accessing nhdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system...

kernel: Race condition access to n_hdlc.tbuf causes double free in n_hdlc_release()

A race condition flaw was found in the NHLDC Linux kernel driver when accessing nhdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system...

Linux kernel privilege acquisition vulnerability (CNVD-2017-02608)

The Linux kernel is the kernel used by the operating system Linux, released by the Linux Foundation in the United States. A privilege-acquisition vulnerability exists in the drivers/tty/nhdlc.c file in Linux kernel versions 4.10.1 and earlier. A local attacker could exploit this vulnerability to...