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: 4815 Comm: syz.0.421 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 : ffff8000a24f7bc0 x29: ffff8000a24f7c30 x28: 55f00000192f3a80 x27: 0000000000000000 x26: 0000000000000000 x25: 20f000001969ee40 x24: 0000000000000000 x23: cdf0000018f3c180 x22: 0000000000000000 x21: 72f000001969ee90 x20: 72f000001969ee90 x19: efff800000000000 x18: 0000000000000004 x17: 0000000000000000 x16: 0000000000000001 x15: 0000000000000000 x14: 00000000000206b5 x13: ffff800083bc0958 x12: 0000000000000028 x11: 0000000000000000 x10: 0000000000002000 x9 : efff800000000000 x8 : 0000000020000000 x7 : ffff800080117c44 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 55f00000192f45c0 x3 : b1ff8000a26f23d0 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