On Thu, Jun 22, 2017 at 07:15:29PM +0100, Andrew Cooper wrote: > A symndx of STN_UNDEF is special, and means a symbol value of 0. While > legitimate in the ELF standard, its existance in a livepatch is questionable > at best. Until a plausible usecase presents itself, reject such a relocation > with -EOPNOTSUPP. > > Additionally, fix an off-by-one error while range checking symndx, and perform > a safety check on elf->sym[symndx].sym before derefencing it, to avoid > tripping over a NULL pointer when calculating val. > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com> > --- > CC: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Tested-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> [arm32 and x86] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
