Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4186 Comm: syz.0.12 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 : prctl_set_mm+0x3e4/0xdf8 kernel/sys.c:2137 lr : sign_extend64 include/linux/bitops.h:183 [inline] lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:244 [inline] lr : prctl_set_mm_map kernel/sys.c:1991 [inline] lr : prctl_set_mm+0x3c0/0xdf8 kernel/sys.c:2137 sp : ffff80001fd678c0 x29: ffff80001fd67c60 x28: 00000000fffffff2 x27: ffff80001fd679e0 x26: dfff800000000000 x25: ffff700003facf3c x24: 0000000000000000 x23: ffff0000d453d1c0 x22: ffff80001fd67a90 x21: 000000000000000f x20: 0000000000000000 x19: 0000000000000001 x18: 0000000000000000 x17: 0000000000000002 x16: ffff8000081e12b0 x15: 000000000000003d x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000080000 x11: 0000000000000131 x10: 0000000000000000 x9 : 0000ffffffffffff x8 : 0000000000000068 x7 : ffff800008750ed4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: prctl_set_mm_map kernel/sys.c:1991 [inline] prctl_set_mm+0x3e4/0xdf8 kernel/sys.c:2137 __do_sys_prctl kernel/sys.c:2442 [inline] __se_sys_prctl kernel/sys.c:2298 [inline] __arm64_sys_prctl+0x758/0xf14 kernel/sys.c:2298 __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: 9a9f028a d503229f 52800d08 b8000948 (17ffff42) ---[ end trace fdae4c5b43733bf7 ]--- ---------------- Code disassembly (best guess): 0: 9a9f028a csel x10, x20, xzr, eq // eq = none 4: d503229f csdb 8: 52800d08 mov w8, #0x68 // #104 c: b8000948 sttr w8, [x10] * 10: 17ffff42 b 0xfffffffffffffd18 <-- trapping instruction