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GETCPU(2) says: int getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache); ... When either cpu or node is NULL nothing is written to the respective pointer. But the fast system call path had no checks for NULL, and would thus return -EFAULT if either (or both) of these were NULL. Reported-by: Mike Frysinger <vapier@gentoo.org> Tested-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Tony Luck <tony.luck@intel.com> |
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hp | ||
include/asm | ||
kernel | ||
kvm | ||
lib | ||
mm | ||
oprofile | ||
pci | ||
scripts | ||
sn | ||
uv | ||
xen | ||
install.sh | ||
Kconfig | ||
Kconfig.debug | ||
Makefile | ||
module.lds |