loop2: detected capacity change from 0 to 2048 ================================================================== BUG: KASAN: slab-out-of-bounds in nilfs_iget_test+0x3e4/0x440 fs/nilfs2/inode.c:544 Read of size 8 at addr ffff888074f591d8 by task syz-executor.2/25524 CPU: 0 PID: 25524 Comm: syz-executor.2 Not tainted 6.2.0-rc2-next-20230105-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:306 [inline] print_report+0x15e/0x45d mm/kasan/report.c:417 kasan_report+0xc0/0xf0 mm/kasan/report.c:517 nilfs_iget_test+0x3e4/0x440 fs/nilfs2/inode.c:544 find_inode+0xe4/0x220 fs/inode.c:915 ilookup5_nowait fs/inode.c:1428 [inline] ilookup5 fs/inode.c:1457 [inline] iget5_locked+0xb5/0x270 fs/inode.c:1238 nilfs_iget_locked+0xa4/0xe0 fs/nilfs2/inode.c:605 nilfs_dat_read+0x88/0x370 fs/nilfs2/dat.c:490 nilfs_load_super_root fs/nilfs2/the_nilfs.c:121 [inline] load_nilfs+0x36c/0x1320 fs/nilfs2/the_nilfs.c:302 nilfs_fill_super fs/nilfs2/super.c:1059 [inline] nilfs_mount+0xa9e/0xfc0 fs/nilfs2/super.c:1315 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x2f0 fs/super.c:1489 do_new_mount fs/namespace.c:3145 [inline] path_mount+0x132a/0x1e20 fs/namespace.c:3475 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount fs/namespace.c:3674 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3674 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f86a408d5fa Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f86a4e31f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000a07 RCX: 00007f86a408d5fa RDX: 00000000200000c0 RSI: 00000000200001c0 RDI: 00007f86a4e31fe0 RBP: 00007f86a4e32020 R08: 00007f86a4e32020 R09: 0000000000000818 R10: 0000000000000818 R11: 0000000000000202 R12: 00000000200000c0 R13: 00000000200001c0 R14: 00007f86a4e31fe0 R15: 0000000020002980 Allocated by task 10969: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 __kasan_slab_alloc+0x82/0x90 mm/kasan/common.c:330 kasan_slab_alloc include/linux/kasan.h:202 [inline] slab_post_alloc_hook mm/slab.h:761 [inline] slab_alloc_node mm/slub.c:3452 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc_lru+0x20e/0x580 mm/slub.c:3483 alloc_inode_sb include/linux/fs.h:3119 [inline] f2fs_alloc_inode+0xfe/0x5d0 fs/f2fs/super.c:1380 alloc_inode+0x61/0x230 fs/inode.c:259 iget_locked+0x1bb/0x660 fs/inode.c:1286 f2fs_iget+0x5d/0x5770 fs/f2fs/inode.c:508 f2fs_fill_super+0x3dbd/0x7680 fs/f2fs/super.c:4361 mount_bdev+0x351/0x410 fs/super.c:1359 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x2f0 fs/super.c:1489 do_new_mount fs/namespace.c:3145 [inline] path_mount+0x132a/0x1e20 fs/namespace.c:3475 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount fs/namespace.c:3674 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3674 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Last potentially related work creation: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:488 __call_rcu_common.constprop.0+0x99/0x780 kernel/rcu/tree.c:2621 destroy_inode+0x129/0x1b0 fs/inode.c:314 iput_final fs/inode.c:1747 [inline] iput fs/inode.c:1773 [inline] iput+0x52b/0x8e0 fs/inode.c:1759 f2fs_fill_super+0x455d/0x7680 fs/f2fs/super.c:4544 mount_bdev+0x351/0x410 fs/super.c:1359 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x2f0 fs/super.c:1489 do_new_mount fs/namespace.c:3145 [inline] path_mount+0x132a/0x1e20 fs/namespace.c:3475 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount fs/namespace.c:3674 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3674 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff888074f588f0 which belongs to the cache f2fs_inode_cache of size 2160 The buggy address is located 120 bytes to the right of 2160-byte region [ffff888074f588f0, ffff888074f59160) The buggy address belongs to the physical page: page:ffffea0001d3d600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x74f58 head:ffffea0001d3d600 order:3 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0 memcg:ffff88807fb05401 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffff88801bde5dc0 dead000000000122 0000000000000000 raw: 0000000000000000 00000000800e000e 00000001ffffffff ffff88807fb05401 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 7456, tgid 7453 (syz-executor.5), ts 393575361359, free_ts 390260103934 prep_new_page mm/page_alloc.c:2546 [inline] get_page_from_freelist+0x119e/0x2a80 mm/page_alloc.c:4298 __alloc_pages+0x1cb/0x5c0 mm/page_alloc.c:5564 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2281 alloc_slab_page mm/slub.c:1851 [inline] allocate_slab+0x25f/0x350 mm/slub.c:1998 new_slab mm/slub.c:2051 [inline] ___slab_alloc+0xa91/0x1400 mm/slub.c:3193 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3292 __slab_alloc_node mm/slub.c:3345 [inline] slab_alloc_node mm/slub.c:3442 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc_lru+0x436/0x580 mm/slub.c:3483 alloc_inode_sb include/linux/fs.h:3119 [inline] f2fs_alloc_inode+0xfe/0x5d0 fs/f2fs/super.c:1380 alloc_inode+0x61/0x230 fs/inode.c:259 iget_locked+0x1bb/0x660 fs/inode.c:1286 f2fs_iget+0x5d/0x5770 fs/f2fs/inode.c:508 f2fs_fill_super+0x338e/0x7680 fs/f2fs/super.c:4259 mount_bdev+0x351/0x410 fs/super.c:1359 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x2f0 fs/super.c:1489 do_new_mount fs/namespace.c:3145 [inline] path_mount+0x132a/0x1e20 fs/namespace.c:3475 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1448 [inline] free_pcp_prepare+0x4d0/0x9e0 mm/page_alloc.c:1498 free_unref_page_prepare mm/page_alloc.c:3384 [inline] free_unref_page+0x1d/0x490 mm/page_alloc.c:3479 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x192/0x220 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x66/0x90 mm/kasan/common.c:307 kasan_slab_alloc include/linux/kasan.h:202 [inline] slab_post_alloc_hook mm/slab.h:761 [inline] slab_alloc_node mm/slub.c:3452 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc+0x175/0x320 mm/slub.c:3476 getname_flags.part.0+0x50/0x4f0 fs/namei.c:139 getname_flags+0x9e/0xe0 include/linux/audit.h:320 vfs_fstatat+0x77/0xb0 fs/stat.c:275 __do_sys_newfstatat+0x8a/0x110 fs/stat.c:446 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff888074f59080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888074f59100: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff888074f59180: fc fc fc fc fc fc fc fc fc fc fc fc 00 00 00 00 ^ ffff888074f59200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888074f59280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================