From 31dd40a6b8fd66127496fc0772b6dbe0a3e5b823 Mon Sep 17 00:00:00 2001 From: Lucas De Marchi Date: Thu, 16 Feb 2017 09:18:35 -0800 Subject: [PATCH] libkmod-config: fix parsing quoted kernel cmdline on params We can only accept quoted values, not module names or parameter names. --- libkmod/libkmod-config.c | 14 ++++++++++++++ .../module-param-kcmdline5/proc/cmdline | 2 +- 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/libkmod/libkmod-config.c b/libkmod/libkmod-config.c index 18f300a..aaac0a1 100644 --- a/libkmod/libkmod-config.c +++ b/libkmod/libkmod-config.c @@ -517,10 +517,24 @@ static int kmod_config_parse_kcmdline(struct kmod_config *config) for (p = buf, modname = buf; *p != '\0' && *p != '\n'; p++) { if (*p == '"') { is_quoted = !is_quoted; + + if (is_quoted) { + /* don't consider a module until closing quotes */ + is_module = false; + } else if (param != NULL && value != NULL) { + /* + * If we are indeed expecting a value and + * closing quotes, then this can be considered + * a valid option for a module + */ + is_module = true; + } + continue; } if (is_quoted) continue; + switch (*p) { case ' ': *p = '\0'; diff --git a/testsuite/rootfs-pristine/test-modprobe/module-param-kcmdline5/proc/cmdline b/testsuite/rootfs-pristine/test-modprobe/module-param-kcmdline5/proc/cmdline index 0c796b3..84e0168 100644 --- a/testsuite/rootfs-pristine/test-modprobe/module-param-kcmdline5/proc/cmdline +++ b/testsuite/rootfs-pristine/test-modprobe/module-param-kcmdline5/proc/cmdline @@ -1 +1 @@ -psmouse.foo psmouse.bar=1 psmouse.foobar="test 1" " notamodule" "noteamodule2 " notamodule3 " quiet rw +psmouse.foo psmouse.bar=1 psmouse.foobar="test 1" psmouse."invalid option" " notamodule" "noteamodule2 " notamodule3 quiet rw