On Fri 2021-04-09 18:52:48, Stephen Boyd wrote:
> Some kernel elf files have various notes that also happen to have an elf
> note type of '3', which matches NT_GNU_BUILD_ID but the note name isn't
> "GNU". For example, this note trips up the existing logic:
>
> Owner Data size Description
> Xen 0x00000008 Unknown note type: (0x00000003) description data: 00 00
> 00 ffffff80 ffffffff ffffffff ffffffff ffffffff
>
> Let's make sure that it is a GNU note when parsing the build ID so that
> we can use this function to parse a vmlinux's build ID too.
>
> Reported-by: Petr Mladek <pmla...@suse.com>
> Cc: Jiri Olsa <jo...@kernel.org>
> Cc: Alexei Starovoitov <a...@kernel.org>
> Cc: Jessica Yu <j...@kernel.org>
> Cc: Evan Green <evgr...@chromium.org>
> Cc: Hsin-Yi Wang <hsi...@chromium.org>
> Fixes: bd7525dacd7e ("bpf: Move stack_map_get_build_id into lib")
> Signed-off-by: Stephen Boyd <swb...@chromium.org>
Tested-by: Petr Mladek <pmla...@suse.com>
Best Regards,
Petr
