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================================================================== BUG: KCSAN: data-race in drain_all_stock / drain_stock write to 0xffff888237c2a2f0 of 4 bytes by task 9355 on cpu 0: drain_stock+0x48/0xf0 mm/memcontrol.c:2273 __refill_stock+0x30/0xb0 mm/memcontrol.c:2313 refill_stock mm/memcontrol.c:2328 [inline] try_charge_memcg+0x9eb/0xd20 mm/memcontrol.c:2779 obj_cgroup_charge_pages+0xab/0x130 mm/memcontrol.c:3109 obj_cgroup_charge+0xe9/0x140 mm/memcontrol.c:3399 pcpu_memcg_pre_alloc_hook mm/percpu.c:1635 [inline] pcpu_alloc+0x1e4/0x1280 mm/percpu.c:1760 __alloc_percpu_gfp+0x26/0x30 mm/percpu.c:1930 __percpu_counter_init+0x47/0x130 lib/percpu_counter.c:162 mm_init+0x433/0x5c0 kernel/fork.c:1166 dup_mm kernel/fork.c:1545 [inline] copy_mm+0x11c/0xf10 kernel/fork.c:1597 copy_process+0xf3e/0x2100 kernel/fork.c:2267 kernel_clone+0x169/0x560 kernel/fork.c:2682 __do_sys_clone kernel/fork.c:2823 [inline] __se_sys_clone kernel/fork.c:2807 [inline] __x64_sys_clone+0xdf/0x110 kernel/fork.c:2807 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888237c2a2f0 of 4 bytes by task 9351 on cpu 1: drain_all_stock+0xd3/0x2a0 mm/memcontrol.c:2358 try_charge_memcg+0x6c2/0xd20 mm/memcontrol.c:2703 try_charge mm/memcontrol.c:2837 [inline] mem_cgroup_charge_skmem+0x51/0x1c0 mm/memcontrol.c:7290 sock_reserve_memory+0xb1/0x370 net/core/sock.c:1025 sk_setsockopt+0x800/0x1e70 net/core/sock.c:1525 sock_setsockopt+0x3c/0x50 net/core/sock.c:1551 __sys_setsockopt+0x177/0x230 net/socket.c:2267 __do_sys_setsockopt net/socket.c:2282 [inline] __se_sys_setsockopt net/socket.c:2279 [inline] __x64_sys_setsockopt+0x66/0x80 net/socket.c:2279 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00000002 -> 0x00000040 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 9351 Comm: syz-executor.5 Not tainted 6.3.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/04/18 02:31 | upstream | 6a8f57ae2eb0 | 436577a9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in drain_all_stock / drain_stock | ||
2023/03/23 07:46 | upstream | fff5a5e7f528 | f94b4a29 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in drain_all_stock / drain_stock | |||
2023/02/25 17:44 | upstream | 489fa31ea873 | ee50e71c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in drain_all_stock / drain_stock | ||
2023/01/26 12:33 | upstream | 7c46948a6e9c | 9dfcf09c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in drain_all_stock / drain_stock |