Xi Wang 1e4df6b720 arm64: bpf: fix signedness bug in loading 64-bit immediate ... Consider "(u64)insn1.imm << 32 | imm" in the arm64 JIT. Since imm is signed 32-bit, it is sign-extended to 64-bit, losing the high 32 bits. The fix is to convert imm to u32 first, which will be zero-extended to u64 implicitly. Cc: Zi Shen Lim <zlim.lnx@gmail.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: <stable@vger.kernel.org> Fixes: 30d3d94cc3 ("arm64: bpf: add 'load 64-bit immediate' instruction") Signed-off-by: Xi Wang <xi.wang@gmail.com> [will: removed non-arm64 bits and redundant casting] Signed-off-by: Will Deacon <will.deacon@arm.com>		2015-05-08 16:15:07 +01:00
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bpf_jit_comp.c	arm64: bpf: fix signedness bug in loading 64-bit immediate	2015-05-08 16:15:07 +01:00
bpf_jit.h	arm64: bpf: add 'shift by register' instructions	2014-10-20 17:47:03 +01:00
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