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| author | Nicholas Piggin <npiggin@gmail.com> | 2018-08-29 21:56:56 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-21 09:19:08 +0100 |
| commit | 63880b2f99747c04e12fba6588d0222dd90323f9 (patch) | |
| tree | c81a2617f4b41089976042d7ff0fb4a810abf7c1 /LICENSES | |
| parent | 54de3d7d55dc70fe7ce8ccd1b7e09831881a730a (diff) | |
| download | linux-stable-63880b2f99747c04e12fba6588d0222dd90323f9.tar.gz linux-stable-63880b2f99747c04e12fba6588d0222dd90323f9.tar.bz2 linux-stable-63880b2f99747c04e12fba6588d0222dd90323f9.zip | |
powerpc/64/module: REL32 relocation range check
[ Upstream commit b851ba02a6f3075f0f99c60c4bc30a4af80cf428 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'LICENSES')
0 files changed, 0 insertions, 0 deletions