Unable to handle kernel paging request at virtual address efff800000000001
KASAN: null-ptr-deref in range [0x0000000000000010-0x000000000000001f]
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
swapper pgtable: 4k pages, 52-bit VAs, pgdp=0000000044c2f000
[efff800000000001] pgd=1000000049b9c003, p4d=1000000049b9d003, pud=0000000000000000
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 UID: 0 PID: 7530 Comm: syz.0.936 Not tainted 6.14.0-rc2-syzkaller-g29281a76709c #0
Hardware name: linux,dummy-virt (DT)
pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : __hwasan_check_x0_67043362+0x4/0x30
lr : vgic_its_save_ite arch/arm64/kvm/vgic/vgic-its.c:2145 [inline]
lr : vgic_its_save_itt arch/arm64/kvm/vgic/vgic-its.c:2248 [inline]
lr : vgic_its_save_device_tables arch/arm64/kvm/vgic/vgic-its.c:2394 [inline]
lr : vgic_its_save_tables_v0+0x25c/0x7e0 arch/arm64/kvm/vgic/vgic-its.c:2614
sp : ffff8000a26b7bc0
x29: ffff8000a26b7c30 x28: 24f0000019d59d40 x27: 0000000000000000
x26: 0000000000000000 x25: 92f0000019de2580 x24: 0000000000000000
x23: 93f00000198cd3c0 x22: 0000000000000000 x21: 9ff0000019de2710
x20: 9ff0000019de2710 x19: efff800000000000 x18: 0000000000000004
x17: 0000000000000000 x16: 0000000000000001 x15: 0000000000000000
x14: 000000000002067c x13: ffff800083bc0958 x12: 0000000000000028
x11: 0000000000000000 x10: 0000000000002000 x9 : efff800000000000
x8 : 0000000020000000 x7 : ffff800080117c44 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 24f0000019d5a880 x3 : d2ff8000a26ac3d0
x2 : ffff800080117cc0 x1 : 0000000000000001 x0 : 0000000000000010
Call trace:
__hwasan_check_x0_67043362+0x4/0x30 (P)
vgic_its_set_attr+0x394/0x554 arch/arm64/kvm/vgic/vgic-its.c:2777
kvm_device_ioctl_attr+0x16c/0x1d8 virt/kvm/kvm_main.c:4624
kvm_device_ioctl+0x154/0x1b0
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__arm64_sys_ioctl+0x108/0x188 fs/ioctl.c:892
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x78/0x1b8 arch/arm64/kernel/syscall.c:49
el0_svc_common+0xe8/0x1b0 arch/arm64/kernel/syscall.c:132
do_el0_svc+0x40/0x50 arch/arm64/kernel/syscall.c:151
el0_svc+0x54/0x14c arch/arm64/kernel/entry-common.c:744
el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: a90efbfd d2800401 143ba985 9344dc10 (38706930)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: a90efbfd stp x29, x30, [sp, #232]
4: d2800401 mov x1, #0x20 // #32
8: 143ba985 b 0xeea61c
c: 9344dc10 sbfx x16, x0, #4, #52
* 10: 38706930 ldrb w16, [x9, x16] <-- trapping instruction