diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2018-08-29 13:56:56 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-20 04:26:47 +0200 |
| commit | b851ba02a6f3075f0f99c60c4bc30a4af80cf428 (patch) | |
| tree | 249ea33c51fff3d0220c994c2e7f2e883e9e017f /arch/powerpc/kernel/head_64.S | |
| parent | powerpc/64s/radix: Fix radix__flush_tlb_collapsed_pmd double flushing pmd (diff) | |
| download | linux-b851ba02a6f3075f0f99c60c4bc30a4af80cf428.tar.xz linux-b851ba02a6f3075f0f99c60c4bc30a4af80cf428.zip | |
powerpc/64/module: REL32 relocation range check
The recent module relocation overflow crash demonstrated that we
have no range checking on REL32 relative relocations. This patch
implements a basic check, the same kernel that previously oopsed
and rebooted now continues with some of these errors when loading
the module:
module_64: x_tables: REL32 527703503449812 out of range!
Possibly other relocations (ADDR32, REL16, TOC16, etc.) should also have
overflow checks.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/head_64.S')
0 files changed, 0 insertions, 0 deletions