BUG: sleeping function called from invalid context at mm/ksm.c:500 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6521, name: syz-executor.4 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 INFO: lockdep is turned off. Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 PID: 6521 Comm: syz-executor.4 Not tainted 6.1.0-rc1-next-20221019-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9890 break_ksm.part.0+0xbe/0x160 mm/ksm.c:500 break_ksm mm/ksm.c:875 [inline] unmerge_ksm_pages+0x1a0/0x240 mm/ksm.c:881 unmerge_and_remove_all_rmap_items mm/ksm.c:1021 [inline] run_store+0x3cf/0xa30 mm/ksm.c:2983 kobj_attr_store+0x50/0x80 lib/kobject.c:824 sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:136 kernfs_fop_write_iter+0x3f8/0x610 fs/kernfs/file.c:330 call_write_iter include/linux/fs.h:2191 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9e9/0xdd0 fs/read_write.c:584 ksys_write+0x127/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5453e8b5a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f54535ff168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f5453fabf80 RCX: 00007f5453e8b5a9 RDX: 0000000000000002 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007f5453ee6580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc974004bf R14: 00007f54535ff300 R15: 0000000000022000