loop4: detected capacity change from 0 to 2048 Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 12483 Comm: syz-executor346 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc) pc : copy_mount_options fs/namespace.c:3246 [inline] pc : __do_sys_mount fs/namespace.c:3571 [inline] pc : __se_sys_mount fs/namespace.c:3553 [inline] pc : __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3553 lr : copy_mount_options fs/namespace.c:3246 [inline] lr : __do_sys_mount fs/namespace.c:3571 [inline] lr : __se_sys_mount fs/namespace.c:3553 [inline] lr : __arm64_sys_mount+0x2d4/0x5e4 fs/namespace.c:3553 sp : ffff80001f877c80 x29: ffff80001f877d20 x28: 00000000fffffff2 x27: 0000ffffee849000 x26: ffff0000cc820000 x25: 0000000000000000 x24: 0000ffffee848530 x23: ffff0000d88f6000 x22: 0000000000000ad0 x21: dfff800000000000 x20: 00000000fffffad0 x19: 0000000000000000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000089655e8 x15: 0000ffffee848530 x14: 363433726f747563 x13: 1ffff0000283006b x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000ffffee849000 x8 : 0000ffffee849000 x7 : ffff80000875120c x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: copy_mount_options fs/namespace.c:3246 [inline] __do_sys_mount fs/namespace.c:3571 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3553 __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: d503229f 2a1903fc 2a1903e0 38400933 (2a1c03e1) ---[ end trace 9a250da5acbacd53 ]--- ---------------- Code disassembly (best guess): 0: d503229f csdb 4: 2a1903fc mov w28, w25 8: 2a1903e0 mov w0, w25 c: 38400933 ldtrb w19, [x9] * 10: 2a1c03e1 mov w1, w28 <-- trapping instruction