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Segmentation fault ./scripts/mod/modpost -o vmlinux.symvers vmlinux.o
stops the kernel build. It comes when write_vmlinux_export_c_file()
tries to buf_printf alias->builtin_modname. malloc'ed memory is not
necessarily zeroed. NULL new->builtin_modname before adding to aliases.
Fixes: 5ab23c7923 ("modpost: Create modalias for builtin modules")
Signed-off-by: Hugh Dickins <[email protected]>
Reviewed-by: Nicolas Schier <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Nathan Chancellor <[email protected]>