user/sven/linux.git/drivers/misc/lkdtm.c, branch v3.14.78

drivers: misc: Mark function jp_generic_ide_ioctl() as static in lkdtm.c

2013-12-19T00:41:52Z

This patch marks the function jp_generic_ide_ioctl() as static in lkdtm.c because it is not used outside this file. Thus, it also eliminates the following warnings in lkdtm.c: drivers/misc/lkdtm.c:227:5: warning: no previous prototype for ‘jp_generic_ide_ioctl’ [-Wmissing-prototypes] Signed-off-by: Rashika Kheria Reviewed-by: Josh Triplett Signed-off-by: Greg Kroah-Hartman

lkdtm: clean up sparse warnings

2013-12-09T06:39:51Z

Since lkdtm intentionally does "bad" things, we need to convince sparse that we're doing these things on purpose. This adds an explicit cast to the call to copy_to_user() and marks the spin lock as expecting to dead-lock. Reported-by: Fengguang Wu Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman

lkdtm: add tests for additional page permissions

2013-10-29T23:13:39Z

Testing execution and access of userspace from the kernel is needed for validating things like Intel's SMEP and SMAP protections. Additionally, add an explicit test for validating that RO page permissions have been set for the RO data area. Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman

lkdtm: adjust recursion size to avoid warnings

2013-10-29T23:13:39Z

When CONFIG_FRAME_WARN is set low (e.g. some ARM builds), the hard-coded stack buffer size used for kernel stack over run testing triggers build warnings. Instead, avoid the warning by recalcuating the buffer size and recursion count needed to trigger the test. Also uses the recursion counter indirectly to avoid changing the parameter during the test. Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman

lkdtm: isolate stack corruption test

2013-10-25T05:21:00Z

When tests were added to lkdtm that grew the stack frame, the stack corruption test stopped working. This isolates the test in its own function, and forces it not to be inlined. Signed-off-by: Kees Cook Fixes: cc33c537c12f ("lkdtm: add "EXEC_*" triggers") Cc: stable # 3.12 Signed-off-by: Greg Kroah-Hartman

lkdtm: add "EXEC_*" triggers

2013-07-25T05:47:20Z

Add new crash locations that attempt to execute non-executable memory regions (data segment, stack, kmalloc, vmalloc). Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman

lkdtm: add "SPINLOCKUP" trigger

2013-07-25T05:47:20Z

For additional lockup testing, add "SPINLOCKUP" to trigger a spinlock deadlock when triggered twice. Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman

lkdtm: add "WARNING" trigger

2013-07-25T05:47:19Z

For additional testing, add "WARNING" as a trigger that calls WARN_ON(1). Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman

lkdtm: fix stack protector trigger

2013-07-25T05:47:19Z

The -fstack-protector compiler flag will only build stack protections if a character array is seen. Additionally, the offset to the saved instruction pointer changes based on architecture, so stomp much harder (64 bytes) when corrupting the stack. Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman

drivers/misc/lkdtm.c: fix missing allocation failure check

2012-07-31T00:25:22Z

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=44691 Reported-by: Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds