Friedrich Vock 44382b3ed6 bpf: Fix potential integer overflow in resolve_btfids ... err is a 32-bit integer, but elf_update returns an off_t, which is 64-bit at least on 64-bit platforms. If symbols_patch is called on a binary between 2-4GB in size, the result will be negative when cast to a 32-bit integer, which the code assumes means an error occurred. This can wrongly trigger build failures when building very large kernel images. Fixes: fbbb68de80 ("bpf: Add resolve_btfids tool to resolve BTF IDs in ELF object") Signed-off-by: Friedrich Vock <friedrich.vock@gmx.de> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20240514070931.199694-1-friedrich.vock@gmx.de		2024-05-24 17:12:12 +02:00
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main.c	bpf: Fix potential integer overflow in resolve_btfids	2024-05-24 17:12:12 +02:00
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