------------[ cut here ]------------ WARNING: CPU: 1 PID: 7916 at include/linux/sched/signal.h:548 restore_saved_sigmask_unless include/linux/sched/signal.h:548 [inline] WARNING: CPU: 1 PID: 7916 at include/linux/sched/signal.h:548 poll_select_finish+0x71c/0x7e0 fs/select.c:301 Modules linked in: CPU: 1 UID: 0 PID: 7916 Comm: syz.2.184 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : restore_saved_sigmask_unless include/linux/sched/signal.h:548 [inline] pc : poll_select_finish+0x71c/0x7e0 fs/select.c:301 lr : restore_saved_sigmask_unless include/linux/sched/signal.h:548 [inline] lr : poll_select_finish+0x71c/0x7e0 fs/select.c:301 sp : ffff80009ed87b20 x29: ffff80009ed87c20 x28: dfff800000000000 x27: 0000000000000000 x26: ffff700013db0f6c x25: 0000000000000002 x24: ffff80009ed87ce0 x23: 0000000000000008 x22: ffff80009ed87ba0 x21: ffff0000da1bbc80 x20: 0000000000000008 x19: 00000000fffffdfe x18: ffff80009edb5e20 x17: 0000000000046fc8 x16: ffff80008b3edfc8 x15: 0000000000000002 x14: 1ffff00013db0f74 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 000000000000137c x9 : ffff8000a7154000 x8 : 000000000000137d 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:548 [inline] (P) poll_select_finish+0x71c/0x7e0 fs/select.c:301 (P) restore_saved_sigmask_unless include/linux/sched/signal.h:548 [inline] (L) poll_select_finish+0x71c/0x7e0 fs/select.c:301 (L) __do_sys_ppoll fs/select.c:1122 [inline] __se_sys_ppoll fs/select.c:1101 [inline] __arm64_sys_ppoll+0x2d8/0x358 fs/select.c:1101 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 1328 hardirqs last enabled at (1327): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline] hardirqs last enabled at (1327): [] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95 hardirqs last disabled at (1328): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (1258): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1256): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---