------------[ cut here ]------------
WARNING: CPU: 1 PID: 7164 at ./include/linux/sched/signal.h:547 restore_saved_sigmask_unless include/linux/sched/signal.h:547 [inline]
WARNING: CPU: 1 PID: 7164 at ./include/linux/sched/signal.h:547 poll_select_finish+0x584/0x614 fs/select.c:301
Modules linked in:
CPU: 1 UID: 0 PID: 7164 Comm: syz.0.15 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : restore_saved_sigmask_unless include/linux/sched/signal.h:547 [inline]
pc : poll_select_finish+0x584/0x614 fs/select.c:301
lr : restore_saved_sigmask_unless include/linux/sched/signal.h:547 [inline]
lr : poll_select_finish+0x584/0x614 fs/select.c:301
sp : ffff8000a45f7b60
x29: ffff8000a45f7c40 x28: 0000000000000010 x27: dfff800000000000
x26: ffff8000a45f7b80 x25: ffff7000148bef70 x24: 0000000000000010
x23: ffff8000a45f7ce0 x22: 0000000000000002 x21: ffff0000db965b80
x20: 0000000000000000 x19: 00000000fffffdfe x18: 1fffe0003379be88
x17: ffff80008f7de000 x16: ffff80008af7a948 x15: 0000000000000002
x14: 1ffff000148bef78 x13: 0000000000000000 x12: 0000000000000000
x11: ffff7000148bef7a x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000db965b80 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : 0000000000000010
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 restore_saved_sigmask_unless include/linux/sched/signal.h:547 [inline] (P)
 poll_select_finish+0x584/0x614 fs/select.c:301 (P)
 __do_sys_ppoll fs/select.c:1116 [inline]
 __se_sys_ppoll fs/select.c:1095 [inline]
 __arm64_sys_ppoll+0x22c/0x2a8 fs/select.c:1095
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 304
hardirqs last  enabled at (303): [<ffff80008b01441c>] irqentry_exit+0xd8/0x108 kernel/entry/common.c:214
hardirqs last disabled at (304): [<ffff80008b00e86c>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434
softirqs last  enabled at (214): [<ffff800080201608>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (212): [<ffff8000802015d4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---