git.baikalelectronics.ru Git - kernel.git/commit

author	Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
	Tue, 5 Oct 2021 20:25:21 +0000 (01:55 +0530)
committer	Michael Ellerman <mpe@ellerman.id.au>
	Thu, 7 Oct 2021 07:52:33 +0000 (18:52 +1100)
commit	eb07844b03f97ce322a24cb871b941b9efe6dd37
tree	7f887f980f7cebd58046d3213ac0fded3f38526b	tree \| snapshot
parent	102b52d6ccdae7313a10bf588a467394ab906f93	commit \| diff

powerpc/bpf: Validate branch ranges

Add checks to ensure that we never emit branch instructions with
truncated branch offsets.

Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Tested-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/71d33a6b7603ec1013c9734dd8bdd4ff5e929142.1633464148.git.naveen.n.rao@linux.vnet.ibm.com

arch/powerpc/net/bpf_jit.h		diff \| blob \| history
arch/powerpc/net/bpf_jit_comp.c		diff \| blob \| history
arch/powerpc/net/bpf_jit_comp32.c		diff \| blob \| history
arch/powerpc/net/bpf_jit_comp64.c		diff \| blob \| history