Linux kernel is vulnerable to denial of service (DOS) attacks. The vulnerability exists because the ping_unhash function in net/ipv4/ping.c in the Linux kernel is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe. Local attackers with access to ping sockets could use this flaw to crash the system by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call…
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git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893
github.com/danieljiang0415/android_kernel_crash_poc
github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893
twitter.com/danieljiang0415/status/845116665184497664
usn.ubuntu.com/3754-1/
www.exploit-db.com/exploits/42135/