On Tue, 2021-02-23 at 15:26 -0500, Ian Denhardt wrote: > Hi, > > I'm using the `bpf_asm` tool to do some syscall filtering, and found > out > the hard way that its error checking isn't very strict. In particular, > it issues a warning (not an error) when a jump offset overflows the > instruction's field. It really seems like this *ought* to be a hard > error, but I see from the commit message in > 7e22077d0c73a68ff3fd8b3d2f6564fcbcf8cb23 that this was left as a > warning > due to backwards compatibility concerns.
My 2c: when I was writing that commit, I did not have any specific examples of code that would break in mind - that was pure speculation/paranoia. So it's OK from my perspective to convert this fprintf to a hard error. [...]
