netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
Unable to handle kernel paging request at virtual address dfff800000000003
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
Mem abort info:
ESR = 0x0000000096000005
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x05: level 1 translation fault
Data abort info:
ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
CM = 0, WnR = 0, TnD = 0, TagAccess = 0
GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff800000000003] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 6083 Comm: syz-executor299 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : nsim_setup_prog_hw_checks drivers/net/netdevsim/bpf.c:320 [inline]
pc : nsim_bpf+0x1e0/0xae0 drivers/net/netdevsim/bpf.c:562
lr : nsim_bpf+0x8c/0xae0 drivers/net/netdevsim/bpf.c:554
sp : ffff800096b97790
x29: ffff800096b977a0 x28: dfff800000000000 x27: ffff700012d72f00
x26: dfff800000000000 x25: ffff800096b97a00 x24: 0000000000000008
x23: ffff800096b97820 x22: 0000000000000018 x21: ffff800096b97820
x20: ffff0000d5e38cc0 x19: ffff0000d5e38000 x18: ffff800096b97580
x17: ffff8000805c1258 x16: ffff80008030c738 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000003
x11: ffff0000d55a3780 x10: 00000000000000bc x9 : ffff800085ce8bf0
x8 : 0000000000000003 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800092e2e000 x4 : 0000000000000000 x3 : ffff80008030c754
x2 : 0000000000000000 x1 : ffff80009001ef50 x0 : 0000000000000001
Call trace:
nsim_setup_prog_hw_checks drivers/net/netdevsim/bpf.c:320 [inline]
nsim_bpf+0x1e0/0xae0 drivers/net/netdevsim/bpf.c:562
dev_xdp_install+0x124/0x2f0 net/core/dev.c:9199
dev_xdp_attach+0xa4c/0xcc8 net/core/dev.c:9351
dev_xdp_attach_link net/core/dev.c:9370 [inline]
bpf_xdp_link_attach+0x300/0x710 net/core/dev.c:9540
link_create+0x2c0/0x68c kernel/bpf/syscall.c:4954
__sys_bpf+0x4d4/0x5dc kernel/bpf/syscall.c:5414
__do_sys_bpf kernel/bpf/syscall.c:5448 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5446 [inline]
__arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5446
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
Code: 96b3720d f94002c8 91006116 d343fec8 (387a6908)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 96b3720d bl 0xfffffffffacdc834
4: f94002c8 ldr x8, [x22]
8: 91006116 add x22, x8, #0x18
c: d343fec8 lsr x8, x22, #3
* 10: 387a6908 ldrb w8, [x8, x26] <-- trapping instruction