From: Viktor Prutyanov Date: Tue, 19 Feb 2019 21:19:36 +0000 (+0300) Subject: contrib/elf2dmp: add kernel start address checking X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=06164cc402e67e64eefb79cd9a00a59d0e0d2fce;p=qemu.git contrib/elf2dmp: add kernel start address checking Before this patch, if elf2dmp failed to find NT kernel PE magic in allowed virtual address range, then it assumes NULL as NT kernel address and cause segfault. This patch fix the problem described above by checking NT kernel address before futher processing. Signed-off-by: Viktor Prutyanov Message-Id: <20190219211936.6466-1-viktor.prutyanov@phystech.edu> Signed-off-by: Paolo Bonzini --- diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c index 1a45eaf565..1bfeb89ba7 100644 --- a/contrib/elf2dmp/main.c +++ b/contrib/elf2dmp/main.c @@ -524,6 +524,12 @@ int main(int argc, char *argv[]) } } + if (!nt_start_addr) { + eprintf("Failed to find NT kernel image\n"); + err = 1; + goto out_ps; + } + printf("KernBase = 0x%016"PRIx64", signature is \'%.2s\'\n", KernBase, (char *)nt_start_addr);