loop0: detected capacity change from 0 to 256 Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 5127 Comm: syz.0.17 Not tainted 5.15.189-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 : fat_generic_ioctl+0x694/0xeac fs/fat/file.c:163 lr : fat_ioctl_get_attributes fs/fat/file.c:29 [inline] lr : fat_generic_ioctl+0x670/0xeac fs/fat/file.c:163 sp : ffff80001fb27a80 x29: ffff80001fb27ba0 x28: ffff0000c1f01b40 x27: 0000000000000010 x26: dfff800000000000 x25: ffff700003f64f54 x24: 00000000000041c0 x23: 0000000000000010 x22: 0000000000000092 x21: 0000000000400140 x20: 0000000000000000 x19: 0000000000000001 x18: 0000000000000000 x17: ffff800016d04000 x16: ffff800008e4664c x15: ffff8000167e4500 x14: ffff0000c1f02540 x13: 1ffff0000282e06b x12: 0000000000000000 x11: 0000000000000010 x10: 0000ffffffffffff x9 : 0000000000000000 x8 : 00000000fffffff2 x7 : ffff800008750ed4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: fat_ioctl_get_attributes fs/fat/file.c:32 [inline] fat_generic_ioctl+0x694/0xeac fs/fat/file.c:163 fat_dir_ioctl+0x184/0x36c fs/fat/dir.c:804 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __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: ea2a013f 9a9f028c d503229f b800098b (93407d00) ---[ end trace e6869e2f799d0be1 ]--- ---------------- Code disassembly (best guess): 0: ea2a013f bics xzr, x9, x10 4: 9a9f028c csel x12, x20, xzr, eq // eq = none 8: d503229f csdb c: b800098b sttr w11, [x12] * 10: 93407d00 sxtw x0, w8 <-- trapping instruction