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| author | Guo Ren <guoren@linux.alibaba.com> | 2020-10-06 19:49:33 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2020-10-07 04:34:00 +0300 |
| commit | 84814460eef9af0fb56a4698341c9cb7996a6312 (patch) | |
| tree | e10b394b9d0d3154a6553e11335144c610b4aa7c /arch/riscv/configs/nommu_virt_defconfig | |
| parent | a78c6f5956a949b496a5b087188dde52483edf51 (diff) | |
| download | linux-84814460eef9af0fb56a4698341c9cb7996a6312.tar.xz | |
riscv: Fixup bootup failure with HARDENED_USERCOPY
6184358da000 ("riscv: Fixup static_obj() fail") attempted to elide a lockdep
failure by rearranging our kernel image to place all initdata within [_stext,
_end], thus triggering lockdep to treat these as static objects. These objects
are released and eventually reallocated, causing check_kernel_text_object() to
trigger a BUG().
This backs out the change to make [_stext, _end] all-encompassing, instead just
moving initdata. This results in initdata being outside of [__init_begin,
__init_end], which means initdata can't be freed.
Link: https://lore.kernel.org/linux-riscv/1593266228-61125-1-git-send-email-guoren@kernel.org/T/#t
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Reported-by: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
[Palmer: Clean up commit text]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/configs/nommu_virt_defconfig')
0 files changed, 0 insertions, 0 deletions