------------[ cut here ]------------
WARNING: CPU: 0 PID: 7439 at ./include/linux/sched/signal.h:547 restore_saved_sigmask_unless include/linux/sched/signal.h:547 [inline]
WARNING: CPU: 0 PID: 7439 at ./include/linux/sched/signal.h:547 poll_select_finish+0x584/0x614 fs/select.c:301
Modules linked in:
CPU: 0 UID: 0 PID: 7439 Comm: syz.0.15 Not tainted 6.16.0-rc4-syzkaller-g7482bb149b9f #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (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 : ffff80009c7e7b60
x29: ffff80009c7e7c40 x28: 0000000000000010 x27: dfff800000000000
x26: ffff80009c7e7b80 x25: ffff7000138fcf70 x24: 0000000000000010
x23: ffff80009c7e7ce0 x22: 0000000000000002 x21: ffff0000c95c5b80
x20: 0000000000000000 x19: 00000000fffffdfe x18: 1fffe000337d4076
x17: ffff80008f66e000 x16: ffff80008ae642c8 x15: 0000000000000002
x14: 1ffff000138fcf78 x13: 0000000000000000 x12: 0000000000000000
x11: ffff7000138fcf7a x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000c95c5b80 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+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 330
hardirqs last  enabled at (329): [<ffff80008aefa054>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:86 [inline]
hardirqs last  enabled at (329): [<ffff80008aefa054>] exit_to_kernel_mode+0xc0/0xf0 arch/arm64/kernel/entry-common.c:96
hardirqs last disabled at (330): [<ffff80008aef73d4>] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574
softirqs last  enabled at (290): [<ffff8000801fd5e4>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (288): [<ffff8000801fd5b0>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---