BUG: scheduling while atomic: syz-executor.0/8840/0x00000002 Modules linked in: CPU: 0 PID: 8840 Comm: syz-executor.0 Not tainted 6.7.0-rc6-syzkaller-00303-g3f82f1c3a036 #0 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x94/0xec arch/arm64/kernel/stacktrace.c:233 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x48/0x60 lib/dump_stack.c:106 dump_stack+0x18/0x24 lib/dump_stack.c:113 __schedule_bug+0x50/0x68 kernel/sched/core.c:5919 schedule_debug kernel/sched/core.c:5946 [inline] __schedule+0x7e0/0x898 kernel/sched/core.c:6581 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x34/0xc8 kernel/sched/core.c:6778 schedule_timeout+0xf4/0x100 kernel/time/timer.c:2143 ___down_common+0xec/0x15c kernel/locking/semaphore.c:225 __down_common kernel/locking/semaphore.c:246 [inline] __down+0x18/0x24 kernel/locking/semaphore.c:254 down+0x50/0x6c kernel/locking/semaphore.c:63 console_lock+0x2c/0x8c kernel/printk/printk.c:2640 do_con_write+0x7c/0x1e2c drivers/tty/vt/vt.c:2862 con_write+0x18/0x68 drivers/tty/vt/vt.c:3251 gsmld_write+0x64/0xd0 drivers/tty/n_gsm.c:3724 iterate_tty_write drivers/tty/tty_io.c:1021 [inline] file_tty_write.constprop.0+0x134/0x28c drivers/tty/tty_io.c:1092 tty_write+0x14/0x20 drivers/tty/tty_io.c:1113 call_write_iter include/linux/fs.h:2020 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x1b8/0x2dc fs/read_write.c:584 ksys_write+0x70/0x104 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x1c/0x28 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:51 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:136 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:155 el0_svc+0x34/0xd8 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:595 BUG: scheduling while atomic: syz-executor.0/8840/0x00000000 Modules linked in: CPU: 0 PID: 8840 Comm: syz-executor.0 Tainted: G W 6.7.0-rc6-syzkaller-00303-g3f82f1c3a036 #0 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x94/0xec arch/arm64/kernel/stacktrace.c:233 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x48/0x60 lib/dump_stack.c:106 dump_stack+0x18/0x24 lib/dump_stack.c:113 __schedule_bug+0x50/0x68 kernel/sched/core.c:5919 schedule_debug kernel/sched/core.c:5946 [inline] __schedule+0x7e0/0x898 kernel/sched/core.c:6581 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0x34/0xc8 kernel/sched/core.c:6778 do_notify_resume+0x1a0/0x1474 arch/arm64/kernel/signal.c:1288 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline] el0_svc+0xd4/0xd8 arch/arm64/kernel/entry-common.c:679 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:595