From: Yue Tao <yue....@windriver.com> acpid.c in acpid before 2.0.9 does not properly handle a situation in which a process has connected to acpid.socket but is not reading any data, which allows local users to cause a denial of service (daemon hang) via a crafted application that performs a connect system call but no read system calls.
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-1159 Signed-off-by: Yue Tao <yue....@windriver.com> Signed-off-by: Robert Yang <liezhi.y...@windriver.com> Signed-off-by: Mark Hatle <mark.ha...@windriver.com> --- meta/recipes-bsp/acpid/acpid.inc | 3 ++- meta/recipes-bsp/acpid/acpid/set_socket_noblock.patch | 10 ++++++++++ 2 files changed, 12 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-bsp/acpid/acpid/set_socket_noblock.patch diff --git a/meta/recipes-bsp/acpid/acpid.inc b/meta/recipes-bsp/acpid/acpid.inc index 40293c5..a384265 100644 --- a/meta/recipes-bsp/acpid/acpid.inc +++ b/meta/recipes-bsp/acpid/acpid.inc @@ -6,7 +6,8 @@ LICENSE="GPLv2+" SECTION = "base" SRC_URI = "${SOURCEFORGE_MIRROR}/acpid/acpid-${PV}.tar.gz \ - file://init" + file://init \ + file://set_socket_noblock.patch " inherit update-rc.d diff --git a/meta/recipes-bsp/acpid/acpid/set_socket_noblock.patch b/meta/recipes-bsp/acpid/acpid/set_socket_noblock.patch new file mode 100644 index 0000000..54d6435 --- /dev/null +++ b/meta/recipes-bsp/acpid/acpid/set_socket_noblock.patch @@ -0,0 +1,10 @@ +--- a/acpid.c ++++ b/acpid.c +@@ -307,6 +307,7 @@ main(int argc, char **argv) + non_root_clients++; + } + fcntl(cli_fd, F_SETFD, FD_CLOEXEC); ++ fcntl(cli_fd, F_SETFL, O_NONBLOCK); + snprintf(buf, sizeof(buf)-1, "%d[%d:%d]", + creds.pid, creds.uid, creds.gid); + acpid_add_client(cli_fd, buf); -- 1.8.3.4 _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
