Re: [syzbot] [bpf?] [net?] KMSAN: uninit-value in dev_map_lookup_elem

Martin KaFai Lau
2024-03-28T18:23:20Z

On 3/28/24 3:01 AM, syzbot wrote:
> Killed
> make[2]: *** [scripts/Makefile.vmlinux_o:62: vmlinux.o] Error 137
> make[2]: *** Deleting file 'vmlinux.o'
> make[1]: *** [/syzkaller/jobs/linux/kernel/Makefile:1141: vmlinux_o] Error 2
> make: *** [Makefile:240: __sub-make] Error 2

My second syzbot test attempt passed the build stage and passed the reproducer
also. https://lore.kernel.org/all/000000000000b7bdd80614bc433f@google.com/

Not sure what caused the syzbot build error in the first attempt but should be
unrelated to the fix. I will post the patch.