Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4182 Comm: syz.4.6 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 : __ext4_ioctl fs/ext4/ioctl.c:1247 [inline]
pc : ext4_ioctl+0x162c/0x3614 fs/ext4/ioctl.c:1282
lr : sign_extend64 include/linux/bitops.h:183 [inline]
lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:244 [inline]
lr : __ext4_ioctl fs/ext4/ioctl.c:1247 [inline]
lr : ext4_ioctl+0x160c/0x3614 fs/ext4/ioctl.c:1282
sp : ffff80001f9178c0
x29: ffff80001f917cd0 x28: ffff80001f9178e0 x27: ffff700003f22f1c
x26: ffff0000dcb5bba0 x25: dfff800000000000 x24: 0000000010080000
x23: 0000000010080000 x22: 0000000010080000 x21: 0000000000000000
x20: 0000000000000001 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000002 x16: ffff800008cc31b8 x15: 00000000c0c0583b
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000080000
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000000000000000
x8 : 00000000fffffff2 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 __ext4_ioctl fs/ext4/ioctl.c:1247 [inline]
 ext4_ioctl+0x162c/0x3614 fs/ext4/ioctl.c:1282
 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 9a9f02ab d503229f b8000973 (93407d00) 
---[ end trace 6c8810002ad51cff ]---
----------------
Code disassembly (best guess):
   0:	ea2a013f 	bics	xzr, x9, x10
   4:	9a9f02ab 	csel	x11, x21, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	b8000973 	sttr	w19, [x11]
* 10:	93407d00 	sxtw	x0, w8 <-- trapping instruction