Alexei Starovoitov 4c5de12759 bpf: Emit explicit NULL pointer checks for PROBE_LDX instructions. ...

PTR_TO_BTF_ID registers contain either kernel pointer or NULL.
Emit the NULL check explicitly by JIT instead of going into
do_user_addr_fault() on NULL deference.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20210202053837.95909-1-alexei.starovoitov@gmail.com

2021-02-04 16:46:44 +01:00

..

alpha

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

arc

ARC: [hsdk]: Enable FPU_SAVE_RESTORE

2021-01-08 13:46:58 -08:00

arm

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-01-20 12:16:11 -08:00

arm64

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-01-20 12:16:11 -08:00

c6x

Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block

2020-12-16 12:33:35 -08:00

csky

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

h8300

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

hexagon

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

ia64

ia64: fix build failure caused by memory model changes

2021-01-17 13:31:09 +02:00

m68k

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

microblaze

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

mips

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-01-20 12:16:11 -08:00

nds32

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

nios2

Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block

2020-12-16 12:33:35 -08:00

openrisc

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

parisc

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

powerpc

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-01-20 12:16:11 -08:00

riscv

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-01-20 12:16:11 -08:00

s390

bpf: Rename BPF_XADD and prepare to encode other atomics in .imm

2021-01-14 18:34:29 -08:00

sh

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

sparc

bpf: Rename BPF_XADD and prepare to encode other atomics in .imm

2021-01-14 18:34:29 -08:00

um

Merge tag 'for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

2020-12-17 17:56:44 -08:00

x86

bpf: Emit explicit NULL pointer checks for PROBE_LDX instructions.

2021-02-04 16:46:44 +01:00

xtensa

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

.gitignore

…

Kconfig

fanotify: Fix sys_fanotify_mark() on native x86-32

2020-12-28 11:58:59 +01:00