On Thu, 12 Nov 2026 at 17:43, Christian Brauner <[email protected]> wrote: > copy_oldmem_page() maps a page of the old kernel with ioremap() and > copies from it without checking whether the mapping worked. If it > didn't, the copy reads from an offset into the NULL page. > > Return -ENOMEM like the other architectures do. read_from_oldmem() turns > that into -EFAULT like any other short copy. > > Fixes: 4d5ade5b29c6 ("sh: kdump support.") > Cc: [email protected] > Signed-off-by: Christian Brauner (Amutable) <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]> Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected] In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
