oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz5,mems_allowed=0,oom_memcg=/syz5,task_memcg=/syz5,task=syz-executor.5,pid=3873,uid=0 Memory cgroup out of memory: Killed process 3874 (syz-executor.5) total-vm:46296kB, anon-rss:380kB, file-rss:8960kB, shmem-rss:0kB, UID:0 pgtables:88kB oom_score_adj:1000 ================================================================== BUG: KCSAN: data-race in mem_cgroup_flush_stats / tick_do_update_jiffies64 read-write to 0xffffffff85a079c0 of 8 bytes by interrupt on cpu 0: tick_do_update_jiffies64+0x112/0x1b0 kernel/time/tick-sched.c:118 tick_sched_do_timer kernel/time/tick-sched.c:210 [inline] tick_sched_timer+0x7b/0x2c0 kernel/time/tick-sched.c:1485 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x217/0x700 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x20d/0x7b0 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline] __sysvec_apic_timer_interrupt+0x73/0x210 arch/x86/kernel/apic/apic.c:1115 sysvec_apic_timer_interrupt+0x68/0x80 arch/x86/kernel/apic/apic.c:1109 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] __intel_idle_hlt drivers/idle/intel_idle.c:205 [inline] intel_idle_hlt+0x15/0x20 drivers/idle/intel_idle.c:224 cpuidle_enter_state+0xc6/0x260 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x40/0x60 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:134 [inline] cpuidle_idle_call kernel/sched/idle.c:215 [inline] do_idle+0x194/0x230 kernel/sched/idle.c:282 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379 rest_init+0xf3/0x100 init/main.c:726 arch_call_rest_init+0x9/0x10 init/main.c:823 start_kernel+0x57d/0x5d0 init/main.c:1068 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:556 x86_64_start_kernel+0x94/0xa0 arch/x86/kernel/head64.c:537 secondary_startup_64_no_verify+0x168/0x16b read to 0xffffffff85a079c0 of 8 bytes by task 1892 on cpu 1: do_flush_stats mm/memcontrol.c:653 [inline] mem_cgroup_flush_stats+0x5d/0xd0 mm/memcontrol.c:664 prepare_scan_count mm/vmscan.c:2926 [inline] shrink_node+0x304/0x15c0 mm/vmscan.c:6522 shrink_zones mm/vmscan.c:6763 [inline] do_try_to_free_pages+0x43d/0xce0 mm/vmscan.c:6825 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:7140 try_charge_memcg+0x280/0xd20 mm/memcontrol.c:2695 try_charge mm/memcontrol.c:2837 [inline] charge_memcg+0x51/0x200 mm/memcontrol.c:6976 mem_cgroup_swapin_charge_folio+0xd0/0x150 mm/memcontrol.c:7032 __read_swap_cache_async+0x2fe/0x560 mm/swap_state.c:489 swap_cluster_readahead+0x2a3/0x4f0 mm/swap_state.c:653 swapin_readahead+0x8d/0x700 mm/swap_state.c:861 do_swap_page+0x4d7/0x1550 mm/memory.c:3813 handle_pte_fault mm/memory.c:4942 [inline] __handle_mm_fault mm/memory.c:5079 [inline] handle_mm_fault+0x9ec/0x2c10 mm/memory.c:5233 do_user_addr_fault arch/x86/mm/fault.c:1392 [inline] handle_page_fault arch/x86/mm/fault.c:1486 [inline] exc_page_fault+0x24d/0x650 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 value changed: 0x00000001000067c3 -> 0x00000001000067c4 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1892 Comm: syz-executor.5 Not tainted 6.5.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 ================================================================== syz-executor.5 invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=1000 CPU: 1 PID: 1892 Comm: syz-executor.5 Not tainted 6.5.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xda/0x130 lib/dump_stack.c:106 dump_stack+0x15/0x20 lib/dump_stack.c:113 dump_header+0x95/0x3c0 mm/oom_kill.c:460 oom_kill_process+0xe3/0x3e0 mm/oom_kill.c:1036 out_of_memory+0x9ca/0xc00 mm/oom_kill.c:1172 mem_cgroup_out_of_memory+0x139/0x190 mm/memcontrol.c:1744 mem_cgroup_oom mm/memcontrol.c:1974 [inline] try_charge_memcg+0x75c/0xd20 mm/memcontrol.c:2743 try_charge mm/memcontrol.c:2837 [inline] charge_memcg+0x51/0x200 mm/memcontrol.c:6976 mem_cgroup_swapin_charge_folio+0xd0/0x150 mm/memcontrol.c:7032 __read_swap_cache_async+0x2fe/0x560 mm/swap_state.c:489 swap_cluster_readahead+0x2a3/0x4f0 mm/swap_state.c:653 swapin_readahead+0x8d/0x700 mm/swap_state.c:861 do_swap_page+0x4d7/0x1550 mm/memory.c:3813 handle_pte_fault mm/memory.c:4942 [inline] __handle_mm_fault mm/memory.c:5079 [inline] handle_mm_fault+0x9ec/0x2c10 mm/memory.c:5233 do_user_addr_fault arch/x86/mm/fault.c:1392 [inline] handle_page_fault arch/x86/mm/fault.c:1486 [inline] exc_page_fault+0x24d/0x650 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0033:0x7faa2c7d2aff Code: 49 39 c4 4c 0f 42 e0 48 8b 05 b5 eb c8 00 31 d2 48 f7 f1 4c 01 f8 49 39 c4 4c 0f 42 e0 83 3d 8f 6e 16 00 00 0f 8e 12 ff ff ff cc 07 ff ff 49 39 c4 0f 82 60 01 00 00 69 3d 79 eb c8 00 e8 03 RSP: 002b:00007ffe1fbc3960 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 00007faa2c939980 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000555556d50788 RBP: 00007faa2c939980 R08: 0000000000000000 R09: 00007ffe1fbce0b0 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000008a265 R13: ffffffffffffffff R14: 00007faa2c39c000 R15: 0000000000089f24 memory: usage 307200kB, limit 307200kB, failcnt 6968 memory+swap: usage 307828kB, limit 9007199254740988kB, failcnt 0 kmem: usage 307160kB, limit 9007199254740988kB, failcnt 0 Memory cgroup stats for /syz5: cache 20480 rss 8192 shmem 0 mapped_file 0 dirty 0 writeback 8192 workingset_refault_anon 18 workingset_refault_file 0 swap 643072 pgpgin 102398 pgpgout 102388 pgfault 121154 pgmajfault 3 inactive_anon 12288 active_anon 0 inactive_file 12288 active_file 8192 unevictable 0 hierarchical_memory_limit 314572800 hierarchical_memsw_limit 9223372036854771712 total_cache 20480 total_rss 8192 total_shmem 0 total_mapped_file 0 total_dirty 0 total_writeback 8192 total_workingset_refault_anon 18 total_workingset_refault_file 0 total_swap 643072 total_pgpgin 102398 total_pgpgout 102388 total_pgfault 121154 total_pgmajfault 3 total_inactive_anon 12288 total_active_anon 0 total_inactive_file 8192 total_active_file 12288 total_unevictable 0 oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz5,mems_allowed=0,oom_memcg=/syz5,task_memcg=/syz5,task=syz-executor.5,pid=1892,uid=0 Memory cgroup out of memory: Killed process 1892 (syz-executor.5) total-vm:46296kB, anon-rss:384kB, file-rss:8960kB, shmem-rss:0kB, UID:0 pgtables:80kB oom_score_adj:1000