XFS (loop4): log I/O error -5 ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x74/0x1ff0 kernel/locking/lockdep.c:4881 Read of size 8 at addr ffff888072d0c858 by task kworker/1:1H/150 CPU: 1 PID: 150 Comm: kworker/1:1H Not tainted 5.15.103-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: xfs-log/loop4 xlog_ioend_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 __lock_acquire+0x74/0x1ff0 kernel/locking/lockdep.c:4881 lock_acquire+0x1ff/0x570 kernel/locking/lockdep.c:5622 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:363 [inline] xfs_trans_committed_bulk+0x779/0x7f0 fs/xfs/xfs_trans.c:816 xlog_cil_committed+0x28d/0xe50 fs/xfs/xfs_log_cil.c:631 xlog_cil_process_committed+0x155/0x1a0 fs/xfs/xfs_log_cil.c:659 xlog_state_shutdown_callbacks+0x2b6/0x3a0 fs/xfs/xfs_log.c:516 xlog_force_shutdown+0x1e7/0x200 fs/xfs/xfs_log.c:3896 xfs_do_force_shutdown+0x11d/0x520 fs/xfs/xfs_fsops.c:529 xlog_ioend_work+0xc2/0x120 fs/xfs/xfs_log.c:1364 process_one_work+0x90d/0x1270 kernel/workqueue.c:2306 worker_thread+0xaca/0x1280 kernel/workqueue.c:2453 kthread+0x3f6/0x4f0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Allocated by task 12945: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc+0x152/0x290 mm/slub.c:4407 kmalloc include/linux/slab.h:596 [inline] kmem_alloc+0x1c4/0x470 fs/xfs/kmem.c:21 kmem_zalloc fs/xfs/kmem.h:69 [inline] xfs_trans_ail_init+0x20/0x240 fs/xfs/xfs_trans_ail.c:892 xfs_log_mount+0x1e4/0x720 fs/xfs/xfs_log.c:698 xfs_mountfs+0xb7a/0x1ca0 fs/xfs/xfs_mount.c:764 xfs_fs_fill_super+0x100c/0x1240 fs/xfs/xfs_super.c:1658 get_tree_bdev+0x3fe/0x620 fs/super.c:1294 vfs_get_tree+0x88/0x270 fs/super.c:1499 do_new_mount+0x28b/0xad0 fs/namespace.c:2994 do_mount fs/namespace.c:3337 [inline] __do_sys_mount fs/namespace.c:3545 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb Freed by task 3629: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x80 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0x115/0x2e0 mm/slub.c:4559 xfs_log_unmount+0x51/0xc0 fs/xfs/xfs_log.c:1078 xfs_unmountfs+0x1bf/0x270 fs/xfs/xfs_mount.c:1040 xfs_fs_put_super+0x65/0x2b0 fs/xfs/xfs_super.c:1090 generic_shutdown_super+0x136/0x2c0 fs/super.c:466 kill_block_super+0x7a/0xe0 fs/super.c:1396 deactivate_locked_super+0xa0/0x110 fs/super.c:335 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143 task_work_run+0x129/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:175 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x5d/0x2b0 kernel/entry/common.c:300 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb Last potentially related work creation: kasan_save_stack+0x36/0x60 mm/kasan/common.c:38 kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348 kvfree_call_rcu+0x118/0x8a0 kernel/rcu/tree.c:3559 drop_sysctl_table+0x317/0x460 fs/proc/proc_sysctl.c:1680 drop_sysctl_table+0x329/0x460 fs/proc/proc_sysctl.c:1683 unregister_sysctl_table+0x88/0x130 fs/proc/proc_sysctl.c:1718 __addrconf_sysctl_unregister net/ipv6/addrconf.c:7087 [inline] addrconf_sysctl_unregister net/ipv6/addrconf.c:7115 [inline] addrconf_ifdown+0x183b/0x1bb0 net/ipv6/addrconf.c:3904 addrconf_notify+0x432/0xf30 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:391 call_netdevice_notifiers_info net/core/dev.c:1998 [inline] call_netdevice_notifiers_extack net/core/dev.c:2010 [inline] call_netdevice_notifiers net/core/dev.c:2024 [inline] unregister_netdevice_many+0xf1b/0x18f0 net/core/dev.c:11065 default_device_exit_batch+0x390/0x3f0 net/core/dev.c:11594 ops_exit_list net/core/net_namespace.c:174 [inline] setup_net+0x81c/0x9e0 net/core/net_namespace.c:352 copy_net_ns+0x395/0x5d0 net/core/net_namespace.c:473 create_new_namespaces+0x425/0x7a0 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0x11e/0x170 kernel/nsproxy.c:226 ksys_unshare+0x580/0xb20 kernel/fork.c:3094 __do_sys_unshare kernel/fork.c:3168 [inline] __se_sys_unshare kernel/fork.c:3166 [inline] __x64_sys_unshare+0x34/0x40 kernel/fork.c:3166 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb Second to last potentially related work creation: kasan_save_stack+0x36/0x60 mm/kasan/common.c:38 kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348 kvfree_call_rcu+0x118/0x8a0 kernel/rcu/tree.c:3559 drop_sysctl_table+0x317/0x460 fs/proc/proc_sysctl.c:1680 drop_sysctl_table+0x329/0x460 fs/proc/proc_sysctl.c:1683 unregister_sysctl_table+0x88/0x130 fs/proc/proc_sysctl.c:1718 neigh_sysctl_unregister+0x74/0x90 net/core/neighbour.c:3754 addrconf_sysctl_unregister net/ipv6/addrconf.c:7117 [inline] addrconf_ifdown+0x18c5/0x1bb0 net/ipv6/addrconf.c:3904 addrconf_notify+0x432/0xf30 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:391 call_netdevice_notifiers_info net/core/dev.c:1998 [inline] call_netdevice_notifiers_extack net/core/dev.c:2010 [inline] call_netdevice_notifiers net/core/dev.c:2024 [inline] unregister_netdevice_many+0xf1b/0x18f0 net/core/dev.c:11065 __rtnl_newlink net/core/rtnetlink.c:3493 [inline] rtnl_newlink+0x1cfd/0x2060 net/core/rtnetlink.c:3510 rtnetlink_rcv_msg+0x993/0xee0 net/core/rtnetlink.c:5587 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2533 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1356 netlink_sendmsg+0xa30/0xd60 net/netlink/af_netlink.c:1952 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2412 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2502 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb The buggy address belongs to the object at ffff888072d0c800 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 88 bytes inside of 256-byte region [ffff888072d0c800, ffff888072d0c900) The buggy address belongs to the page: page:ffffea0001cb4300 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72d0c head:ffffea0001cb4300 order:1 compound_mapcount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 0000000600000001 ffff888011c41b40 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 3619, ts 126508098810, free_ts 126221522114 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x32dd/0x3470 mm/page_alloc.c:4159 __alloc_pages+0x272/0x790 mm/page_alloc.c:5421 alloc_slab_page mm/slub.c:1775 [inline] allocate_slab mm/slub.c:1912 [inline] new_slab+0xbb/0x4b0 mm/slub.c:1975 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008 __slab_alloc mm/slub.c:3095 [inline] slab_alloc_node mm/slub.c:3186 [inline] slab_alloc mm/slub.c:3228 [inline] __kmalloc+0x1b2/0x290 mm/slub.c:4403 kmalloc include/linux/slab.h:596 [inline] kzalloc include/linux/slab.h:721 [inline] fib_create_info+0xaab/0x2570 net/ipv4/fib_semantics.c:1473 fib_table_insert+0x213/0x1f90 net/ipv4/fib_trie.c:1231 fib_magic net/ipv4/fib_frontend.c:1090 [inline] fib_add_ifaddr+0x47f/0x1730 net/ipv4/fib_frontend.c:1112 fib_netdev_event+0x61d/0x760 net/ipv4/fib_frontend.c:1472 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:391 __dev_notify_flags+0x304/0x610 dev_change_flags+0xe7/0x190 net/core/dev.c:8859 do_setlink+0xcd1/0x3af0 net/core/rtnetlink.c:2721 __rtnl_newlink net/core/rtnetlink.c:3395 [inline] rtnl_newlink+0x177d/0x2060 net/core/rtnetlink.c:3510 rtnetlink_rcv_msg+0x993/0xee0 net/core/rtnetlink.c:5587 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2533 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xcb7/0xd70 mm/page_alloc.c:3317 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396 free_slab mm/slub.c:2015 [inline] discard_slab mm/slub.c:2021 [inline] __unfreeze_partials+0x1b7/0x210 mm/slub.c:2507 put_cpu_partial+0x132/0x1a0 mm/slub.c:2587 do_slab_free mm/slub.c:3487 [inline] ___cache_free+0xe3/0x100 mm/slub.c:3506 qlist_free_all+0x36/0x90 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0xf3/0x2e0 mm/slub.c:3233 getname_flags+0xb8/0x4e0 fs/namei.c:138 user_path_at_empty+0x2a/0x180 fs/namei.c:2852 user_path_at include/linux/namei.h:57 [inline] vfs_statx+0x106/0x3b0 fs/stat.c:221 vfs_fstatat fs/stat.c:243 [inline] __do_sys_newfstatat fs/stat.c:411 [inline] __se_sys_newfstatat fs/stat.c:405 [inline] __x64_sys_newfstatat+0x12c/0x1b0 fs/stat.c:405 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb Memory state around the buggy address: ffff888072d0c700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888072d0c780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888072d0c800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888072d0c880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888072d0c900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================