Re: [libvirt] [PATCH] Introduce virConnectCrashDaemon API

This reduces the affect of an unexpected DoS vulnerablity in libvirtd. --- include/libvirt/libvirt.h.in | 13 +++++++++++++ src/driver.h | 5 +++++ src/libvirt.c | 32 +++++++++++++++++++++++++++++++ src/libvirt_private.syms | 1 + src/libvirt_public.syms | 4 ++++ src/qemu/qemu_driver.c | 16 ++++++++++++++++ src/remote/remote_driver.c | 1 + src/remote/remote_protocol.x | 15 ++++++++++++++- src/util/virutil.c | 23 ++++++++++++++++++++++ src/util/virutil.h | 1 + tools/virsh-host.c | 45 ++++++++++++++++++++++++++++++++++++++++++++ 11 files changed, 155 insertions(+), 1 deletion(-)

+ +static bool +cmdCrash(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED) +{ + unsigned int flags = VIR_CONNECT_CRASH_RANDOM; + + if (vshCommandOptBool(cmd, "null")) + flags = VIR_CONNECT_CRASH_NULL_PTR; + if (vshCommandOptBool(cmd, "doublefree")) + flags = VIR_CONNECT_CRASH_DOUBLE_FREE;

+ + virConnectCrashDaemon(ctl->conn, flags); + return true; +} + const vshCmdDef hostAndHypervisorCmds[] = { {.name = "capabilities", .handler = cmdCapabilities,