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================================================================== BUG: KCSAN: data-race in __delete_from_swap_cache / folio_mapping write to 0xffffea00049c8568 of 8 bytes by task 9417 on cpu 1: __delete_from_swap_cache+0x1f2/0x290 mm/swap_state.c:160 delete_from_swap_cache+0x72/0xd0 mm/swap_state.c:240 folio_free_swap+0x19f/0x1c0 mm/swapfile.c:1589 __try_to_reclaim_swap mm/swapfile.c:154 [inline] free_swap_and_cache+0x22e/0x2d0 mm/swapfile.c:1611 shmem_free_swap mm/shmem.c:841 [inline] shmem_undo_range+0x2b6/0xa40 mm/shmem.c:994 shmem_truncate_range mm/shmem.c:1113 [inline] shmem_fallocate+0x2e3/0x860 mm/shmem.c:3093 vfs_fallocate+0x378/0x3e0 fs/open.c:324 ksys_fallocate fs/open.c:347 [inline] __do_sys_fallocate fs/open.c:355 [inline] __se_sys_fallocate fs/open.c:353 [inline] __x64_sys_fallocate+0x79/0xc0 fs/open.c:353 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b read to 0xffffea00049c8568 of 8 bytes by task 9409 on cpu 0: folio_mapping+0xca/0x110 mm/util.c:780 folio_evictable mm/internal.h:162 [inline] move_folios_to_lru+0x132/0x690 mm/vmscan.c:1800 shrink_inactive_list mm/vmscan.c:1916 [inline] shrink_list mm/vmscan.c:2154 [inline] shrink_lruvec+0xd98/0x17a0 mm/vmscan.c:5656 shrink_node_memcgs mm/vmscan.c:5842 [inline] shrink_node+0xab3/0x15c0 mm/vmscan.c:5877 shrink_zones mm/vmscan.c:6116 [inline] do_try_to_free_pages+0x43d/0xce0 mm/vmscan.c:6178 try_to_free_mem_cgroup_pages+0x1e2/0x480 mm/vmscan.c:6493 try_charge_memcg+0x280/0xd30 mm/memcontrol.c:2742 obj_cgroup_charge_pages+0xab/0x130 mm/memcontrol.c:3255 __memcg_kmem_charge_page+0x9c/0x170 mm/memcontrol.c:3281 __alloc_pages+0x1bb/0x340 mm/page_alloc.c:4585 alloc_pages_mpol+0xb1/0x1d0 mm/mempolicy.c:2133 alloc_pages+0xe0/0x100 mm/mempolicy.c:2204 vm_area_alloc_pages mm/vmalloc.c:3063 [inline] __vmalloc_area_node mm/vmalloc.c:3139 [inline] __vmalloc_node_range+0x6d2/0xea0 mm/vmalloc.c:3320 kvmalloc_node+0x121/0x160 mm/util.c:642 kvmalloc include/linux/slab.h:738 [inline] xt_alloc_table_info+0x3d/0x80 net/netfilter/x_tables.c:1192 do_replace net/ipv4/netfilter/arp_tables.c:970 [inline] do_arpt_set_ctl+0x634/0x13b0 net/ipv4/netfilter/arp_tables.c:1421 nf_setsockopt+0x18d/0x1b0 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0xe6/0x100 net/ipv4/ip_sockglue.c:1426 tcp_setsockopt+0x90/0xa0 net/ipv4/tcp.c:3724 sock_common_setsockopt+0x61/0x70 net/core/sock.c:3711 do_sock_setsockopt net/socket.c:2311 [inline] __sys_setsockopt+0x1d4/0x240 net/socket.c:2334 __do_sys_setsockopt net/socket.c:2343 [inline] __se_sys_setsockopt net/socket.c:2340 [inline] __x64_sys_setsockopt+0x66/0x80 net/socket.c:2340 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b value changed: 0x0000000000000772 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 9409 Comm: syz-executor.1 Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/12/20 15:32 | upstream | 55cb5f43689d | de21eb89 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in __delete_from_swap_cache / folio_mapping | ||
2023/11/18 03:39 | upstream | 6bc40e44f1dd | cb976f63 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in __delete_from_swap_cache / folio_mapping |