Author: andrew Date: Mon Aug 24 17:28:19 2015 New Revision: 287113 URL: https://svnweb.freebsd.org/changeset/base/287113
Log: Check the frame pointer is within the kernel before accessing it. Modified: head/sys/arm64/arm64/unwind.c Modified: head/sys/arm64/arm64/unwind.c ============================================================================== --- head/sys/arm64/arm64/unwind.c Mon Aug 24 16:32:57 2015 (r287112) +++ head/sys/arm64/arm64/unwind.c Mon Aug 24 17:28:19 2015 (r287113) @@ -32,6 +32,7 @@ __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <machine/stack.h> +#include <machine/vmparam.h> int unwind_frame(struct unwind_state *frame) @@ -39,7 +40,7 @@ unwind_frame(struct unwind_state *frame) uint64_t fp; fp = frame->fp; - if (fp == 0) + if (!INKERNEL(fp)) return (-1); frame->sp = fp + 0x10; _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"