Memory cgroup out of memory: Killed process 15259 (syz.3.2945) total-vm:96348kB, anon-rss:1232kB, file-rss:20804kB, shmem-rss:0kB, UID:0 pgtables:100kB oom_score_adj:1000
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BUG: KCSAN: data-race in mem_cgroup_flush_stats_ratelimited / tick_do_update_jiffies64

read-write to 0xffffffff86c07a00 of 8 bytes by interrupt on cpu 0:
 tick_do_update_jiffies64+0x113/0x1c0 kernel/time/tick-sched.c:118
 tick_sched_do_timer kernel/time/tick-sched.c:253 [inline]
 tick_nohz_handler+0x88/0x3d0 kernel/time/tick-sched.c:312
 __run_hrtimer kernel/time/hrtimer.c:1930 [inline]
 __hrtimer_run_queues+0x1f8/0x510 kernel/time/hrtimer.c:1994
 hrtimer_interrupt+0x257/0x810 kernel/time/hrtimer.c:2113
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 __sysvec_apic_timer_interrupt+0x5f/0x1c0 arch/x86/kernel/apic/apic.c:1067
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0x6f/0x80 arch/x86/kernel/apic/apic.c:1061
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
 __tsan_read8+0x0/0x190 kernel/kcsan/core.c:753
 perf_trace_buf_alloc+0xaa/0x100 kernel/trace/trace_event_perf.c:416
 do_perf_trace_kfree include/trace/events/kmem.h:97 [inline]
 perf_trace_kfree+0x6a/0x100 include/trace/events/kmem.h:97
 __do_trace_kfree include/trace/events/kmem.h:97 [inline]
 trace_kfree include/trace/events/kmem.h:97 [inline]
 kfree+0x311/0x370 mm/slub.c:6552
 ___sys_recvmsg+0x135/0x3a0 net/socket.c:2962
 do_recvmmsg+0x1e5/0x560 net/socket.c:3056
 __sys_recvmmsg net/socket.c:3130 [inline]
 __do_sys_recvmmsg net/socket.c:3153 [inline]
 __se_sys_recvmmsg net/socket.c:3146 [inline]
 __x64_sys_recvmmsg+0xe5/0x170 net/socket.c:3146
 x64_sys_call+0x80f/0x3020 arch/x86/include/generated/asm/syscalls_64.h:300
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x136/0x3c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff86c07a00 of 8 bytes by task 30532 on cpu 1:
 mem_cgroup_flush_stats_ratelimited+0x29/0x50 mm/memcontrol.c:743
 count_shadow_nodes+0x6a/0x250 mm/workingset.c:692
 do_shrink_slab+0x61/0x650 mm/shrinker.c:382
 shrink_slab_memcg mm/shrinker.c:553 [inline]
 shrink_slab+0x53b/0x8e0 mm/shrinker.c:631
 shrink_node_memcgs mm/vmscan.c:6173 [inline]
 shrink_node+0x6d4/0x2080 mm/vmscan.c:6215
 shrink_zones mm/vmscan.c:6454 [inline]
 do_try_to_free_pages+0x408/0xc90 mm/vmscan.c:6516
 try_to_free_mem_cgroup_pages+0x201/0x420 mm/vmscan.c:6838
 try_charge_memcg+0x375/0xa00 mm/memcontrol.c:2630
 obj_cgroup_charge_pages mm/memcontrol.c:3072 [inline]
 __obj_cgroup_charge+0x105/0x230 mm/memcontrol.c:3370
 __memcg_slab_post_alloc_hook+0x4a3/0x7e0 mm/memcontrol.c:3498
 memcg_slab_post_alloc_hook mm/slub.c:2461 [inline]
 slab_post_alloc_hook mm/slub.c:4581 [inline]
 slab_alloc_node mm/slub.c:4899 [inline]
 kmem_cache_alloc_lru_noprof+0x1eb/0x400 mm/slub.c:4918
 xas_nomem+0xd1/0x130 lib/xarray.c:309
 shmem_add_to_page_cache+0x3f0/0x5b0 mm/shmem.c:929
 shmem_alloc_and_add_folio mm/shmem.c:2001 [inline]
 shmem_get_folio_gfp+0x51d/0xdc0 mm/shmem.c:2564
 shmem_fault+0xf6/0x250 mm/shmem.c:2765
 __do_fault mm/memory.c:5474 [inline]
 do_read_fault mm/memory.c:5909 [inline]
 do_fault mm/memory.c:6043 [inline]
 do_pte_missing mm/memory.c:4566 [inline]
 handle_pte_fault mm/memory.c:6427 [inline]
 __handle_mm_fault mm/memory.c:6565 [inline]
 handle_mm_fault+0x167c/0x2da0 mm/memory.c:6734
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x129c/0x1f10 mm/gup.c:1428
 populate_vma_page_range mm/gup.c:1860 [inline]
 __mm_populate+0x242/0x390 mm/gup.c:1963
 mm_populate include/linux/mm.h:4137 [inline]
 vm_mmap_pgoff+0x23b/0x2d0 mm/util.c:586
 ksys_mmap_pgoff+0xc1/0x310 mm/mmap.c:606
 x64_sys_call+0x14df/0x3020 arch/x86/include/generated/asm/syscalls_64.h:10
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x136/0x3c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x000000010002367b -> 0x000000010002367c

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 30532 Comm: syz.3.6759 Tainted: G        W           syzkaller #0 PREEMPT(lazy) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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