Hello, syzbot found the following issue on: HEAD commit: c4e91ea0cc7e Merge branch kvm-arm64/misc-6.16 into kvmarm-.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next console output: https://syzkaller.appspot.com/x/log.txt?x=11d634f4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=2f705363127f7638 dashboard link: https://syzkaller.appspot.com/bug?extid=4ebd710a879482a93f8f compiler: Debian clang version 20.1.3 (++20250415083350+2131242240f7-1~exp1~20250415203523.103), Debian LLD 20.1.3 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1437c4d4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12f84768580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/fa3fbcfdac58/non_bootable_disk-c4e91ea0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7ecf29c15547/vmlinux-c4e91ea0.xz kernel image: https://storage.googleapis.com/syzbot-assets/59a7b6f25d98/Image-c4e91ea0.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4ebd710a879482a93f8f@xxxxxxxxxxxxxxxxxxxxxxxxx Unable to handle kernel paging request at virtual address ffef800000000001 KASAN: maybe wild-memory-access in range [0xff00000000000010-0xff0000000000001f] Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ffef800000000001] address between user and kernel address ranges Internal error: Oops: 0000000096000004 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 3370 Comm: syz-executor338 Not tainted 6.15.0-rc4-syzkaller-gc4e91ea0cc7e #0 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : vgic_its_save_ite arch/arm64/kvm/vgic/vgic-its.c:2145 [inline] pc : vgic_its_save_itt arch/arm64/kvm/vgic/vgic-its.c:2248 [inline] pc : vgic_its_save_device_tables arch/arm64/kvm/vgic/vgic-its.c:2394 [inline] pc : vgic_its_save_tables_v0+0x3e0/0xe38 arch/arm64/kvm/vgic/vgic-its.c:2614 lr : compute_next_eventid_offset arch/arm64/kvm/vgic/vgic-its.c:2061 [inline] lr : vgic_its_save_ite arch/arm64/kvm/vgic/vgic-its.c:2142 [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+0x37c/0xe38 arch/arm64/kvm/vgic/vgic-its.c:2614 sp : ffff80008ecd7bf0 x29: ffff80008ecd7c70 x28: 66f00000123bb4f0 x27: 0000000000000000 x26: 000000000000002e x25: 00000000fffffdfd x24: ccf0000013a2ac40 x23: 66f00000123bb438 x22: edf0000013a2a4d0 x21: edf0000013a2a4d0 x20: cdf0000012236600 x19: efff800000000000 x18: 0000000000000000 x17: 0000000000000032 x16: ffff800080011d9c x15: 0000000020000300 x14: 0000000000000000 x13: fff0000015703b08 x12: 0ff0000000000001 x11: 0000000000000010 x10: 0000000000002000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : ffff80008021fbf4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800080158ffc x2 : ffff80008021fc70 x1 : edf0000013a2a4d0 x0 : 0000000000000000 Call trace: vgic_its_save_ite arch/arm64/kvm/vgic/vgic-its.c:2145 [inline] (P) vgic_its_save_itt arch/arm64/kvm/vgic/vgic-its.c:2248 [inline] (P) vgic_its_save_device_tables arch/arm64/kvm/vgic/vgic-its.c:2394 [inline] (P) vgic_its_save_tables_v0+0x3e0/0xe38 arch/arm64/kvm/vgic/vgic-its.c:2614 (P) vgic_its_ctrl arch/arm64/kvm/vgic/vgic-its.c:-1 [inline] vgic_its_set_attr+0x544/0x828 arch/arm64/kvm/vgic/vgic-its.c:2777 kvm_device_ioctl_attr virt/kvm/kvm_main.c:4639 [inline] kvm_device_ioctl+0x354/0x418 virt/kvm/kvm_main.c:-1 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+0x18c/0x244 fs/ioctl.c:892 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x90/0x2b4 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x180/0x2f4 arch/arm64/kernel/syscall.c:132 do_el0_svc+0x58/0x74 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x134 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: 9100412b b2481d69 d344fd2c d378fd69 (386c6a6c) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 9100412b add x11, x9, #0x10 4: b2481d69 orr x9, x11, #0xff00000000000000 8: d344fd2c lsr x12, x9, #4 c: d378fd69 lsr x9, x11, #56 * 10: 386c6a6c ldrb w12, [x19, x12] <-- trapping instruction --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
