On 06/21/2017 07:13 PM, 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, 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>
Reviewed-by: Ross Lagerwall <ross.lagerw...@citrix.com>
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