* NULL pointer dereference in libbpf @ 2021-06-18 9:14 Anton Ivanov 2021-06-18 9:24 ` Toke Høiland-Jørgensen 0 siblings, 1 reply; 3+ messages in thread From: Anton Ivanov @ 2021-06-18 9:14 UTC (permalink / raw) To: netdev https://elixir.bootlin.com/linux/latest/source/tools/lib/bpf/bpf.c#L91 A string is copied to a pointer destination which has been memset to zero a few lines above. Brgds, -- Anton R. Ivanov https://www.kot-begemot.co.uk/ ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: NULL pointer dereference in libbpf 2021-06-18 9:14 NULL pointer dereference in libbpf Anton Ivanov @ 2021-06-18 9:24 ` Toke Høiland-Jørgensen 2021-06-18 9:54 ` Anton Ivanov 0 siblings, 1 reply; 3+ messages in thread From: Toke Høiland-Jørgensen @ 2021-06-18 9:24 UTC (permalink / raw) To: Anton Ivanov, netdev Anton Ivanov <anton.ivanov@kot-begemot.co.uk> writes: > https://elixir.bootlin.com/linux/latest/source/tools/lib/bpf/bpf.c#L91 > > A string is copied to a pointer destination which has been memset to > zero a few lines above. No, it isn't. attr.map_name is an array... -Toke ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: NULL pointer dereference in libbpf 2021-06-18 9:24 ` Toke Høiland-Jørgensen @ 2021-06-18 9:54 ` Anton Ivanov 0 siblings, 0 replies; 3+ messages in thread From: Anton Ivanov @ 2021-06-18 9:54 UTC (permalink / raw) To: Toke Høiland-Jørgensen, netdev On 18/06/2021 10:24, Toke Høiland-Jørgensen wrote: > Anton Ivanov <anton.ivanov@kot-begemot.co.uk> writes: > >> https://elixir.bootlin.com/linux/latest/source/tools/lib/bpf/bpf.c#L91 >> >> A string is copied to a pointer destination which has been memset to >> zero a few lines above. > > No, it isn't. attr.map_name is an array... Apologies, looking at the wrong struct definition (bpf_create_map_attr instead of bpf_attr). Best Regards, > > -Toke > > -- Anton R. Ivanov https://www.kot-begemot.co.uk/ ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-06-18 9:54 UTC | newest] Thread overview: 3+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2021-06-18 9:14 NULL pointer dereference in libbpf Anton Ivanov 2021-06-18 9:24 ` Toke Høiland-Jørgensen 2021-06-18 9:54 ` Anton Ivanov
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