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| author | Naveen N Rao <naveen@kernel.org> | 2023-11-23 12:47:05 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-23 08:42:02 +0100 |
| commit | beee482cc4c9a6b1dcffb2e190b4fd8782258678 (patch) | |
| tree | 824747e43fbe877160a5a8d578865816831b2eac /lib/debugobjects.c | |
| parent | 24a58abcfff3ea80b5ce410648ecca5c07f35b0c (diff) | |
powerpc/lib: Validate size for vector operations
[ Upstream commit 8f9abaa6d7de0a70fc68acaedce290c1f96e2e59 ]
Some of the fp/vmx code in sstep.c assume a certain maximum size for the
instructions being emulated. The size of those operations however is
determined separately in analyse_instr().
Add a check to validate the assumption on the maximum size of the
operations, so as to prevent any unintended kernel stack corruption.
Signed-off-by: Naveen N Rao <naveen@kernel.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Build-tested-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231123071705.397625-1-naveen@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions