loop0: detected capacity change from 0 to 64 Unable to handle kernel paging request at virtual address dfff800000000008 Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff800000000008] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4430 Comm: syz-executor.0 Not tainted 5.15.183-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : hfs_find_init+0x6c/0x1c8 fs/hfs/bfind.c:21 lr : hfs_find_init+0x30/0x1c8 fs/hfs/bfind.c:16 sp : ffff80001fbd7150 x29: ffff80001fbd7150 x28: ffff700003f7ae40 x27: 0000000000000000 x26: ffff0000c2100180 x25: 0000000000000008 x24: dfff800000000000 x23: 0000000000000000 x22: ffff80001fbd7238 x21: 0000000000000040 x20: ffff80001fbd7220 x19: 0000000000000000 x18: 0000000000000000 x17: ffff800016cdf000 x16: ffff8000082b548c x15: ffff8000167bf4c0 x14: ffff0000ddc02540 x13: dfff800000000000 x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800008ed0724 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800016e86390 x4 : 0000000000000000 x3 : 0000000000000030 x2 : 0000000000000008 x1 : ffff80001fbd7220 x0 : ffff80001fbd7230 Call trace: hfs_find_init+0x6c/0x1c8 fs/hfs/bfind.c:21 hfs_ext_read_extent fs/hfs/extent.c:200 [inline] hfs_get_block+0x3d4/0x9ec fs/hfs/extent.c:366 block_read_full_page+0x298/0xc40 fs/buffer.c:2290 hfs_readpage+0x28/0x38 fs/hfs/inode.c:39 do_read_cache_page+0x5f4/0x8f8 mm/filemap.c:-1 read_cache_page+0x68/0x88 mm/filemap.c:3574 read_mapping_page include/linux/pagemap.h:515 [inline] hfs_btree_open+0x404/0xe58 fs/hfs/btree.c:78 hfs_mdb_get+0xe94/0x19ec fs/hfs/mdb.c:199 hfs_fill_super+0xc04/0x1180 fs/hfs/super.c:406 mount_bdev+0x264/0x358 fs/super.c:1400 hfs_mount+0x44/0x58 fs/hfs/super.c:458 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x228/0x810 fs/namespace.c:3014 path_mount+0x5b4/0x1000 fs/namespace.c:3344 do_mount fs/namespace.c:3357 [inline] __do_sys_mount fs/namespace.c:3565 [inline] __se_sys_mount fs/namespace.c:3542 [inline] __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 97e5ef18 91010275 f90002df d343feb9 (38f86b28) ---[ end trace e716f7810d1ef20e ]--- ---------------- Code disassembly (best guess): 0: 97e5ef18 bl 0xffffffffff97bc60 4: 91010275 add x21, x19, #0x40 8: f90002df str xzr, [x22] c: d343feb9 lsr x25, x21, #3 * 10: 38f86b28 ldrsb w8, [x25, x24] <-- trapping instruction