Colin Ian King e3a9548ae5 s390/bpf: Perform r1 range checking before accessing jit->seen_reg[r1] ... [ Upstream commit 91091656252f5d6d8c476e0c92776ce9fae7b445 ] Currently array jit->seen_reg[r1] is being accessed before the range checking of index r1. The range changing on r1 should be performed first since it will avoid any potential out-of-range accesses on the array seen_reg[] and also it is more optimal to perform checks on r1 before fetching data from the array. Fix this by swapping the order of the checks before the array access. Fixes: 0546231057 ("s390/bpf: Add s390x eBPF JIT compiler backend") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/bpf/20210715125712.24690-1-colin.king@canonical.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-07-28 14:35:37 +02:00
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appldata
boot	s390/mem_detect: fix tprot() program check new psw handling	2021-07-20 16:05:44 +02:00
configs
crypto
hypfs
include	s390: introduce proper type handling call_on_stack() macro	2021-07-25 14:36:17 +02:00
kernel	s390/traps: do not test MONITOR CALL without CONFIG_BUG	2021-07-25 14:36:17 +02:00
kvm	KVM: s390: get rid of register asm usage	2021-07-14 16:55:56 +02:00
lib
mm	s390: mm: Fix secure storage access exception handling	2021-07-14 16:55:43 +02:00
net	s390/bpf: Perform r1 range checking before accessing jit->seen_reg[r1]	2021-07-28 14:35:37 +02:00
oprofile
pci
purgatory	s390: disable SSP when needed	2021-07-20 16:05:42 +02:00
tools
Kbuild
Kconfig	s390: appldata depends on PROC_SYSCTL	2021-07-14 16:56:42 +02:00
Kconfig.debug
Makefile	s390: disable SSP when needed	2021-07-20 16:05:42 +02:00