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eh_elf: allow %rip to be NULL before end-of-chain check

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This commit is contained in:
Théophile Bastian 2019-06-09 03:45:55 +02:00
parent bba251cf13
commit 3b01d66203
1 changed files with 9 additions and 1 deletions
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10
src/eh_elf/eh_elf.c
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@ -156,8 +156,16 @@ int eh_elf_step_cursor(struct cursor *cursor) {
return -3;
}
if(eh_elf_context.rip < 10 || eh_elf_context.rsp < 10)
if(((eh_elf_context.flags & (1 << UNWF_RIP))
&& eh_elf_context.rip < 10)
|| ((eh_elf_context.flags & (1 << UNWF_RSP))
&& eh_elf_context.rsp < 10))
{
Debug(4, "EH_ELF err. -5: rip=%lX, rsp=%lX (ip = %lX) Flags: %x (%d)\n",
eh_elf_context.rip, eh_elf_context.rsp, ip,
eh_elf_context.flags, eh_elf_context.flags & (1<<UNWF_RIP));
return -5;
}
Debug(3, "EH_ELF: bp=%016lx sp=%016lx ip=%016lx\n",
eh_elf_context.rbp,