loop3: detected capacity change from 0 to 512 ================================================================== BUG: KASAN: slab-out-of-bounds in lockdep_set_quota_inode fs/ext4/super.c:6822 [inline] BUG: KASAN: slab-out-of-bounds in ext4_quota_enable fs/ext4/super.c:6953 [inline] BUG: KASAN: slab-out-of-bounds in ext4_enable_quotas+0x5d3/0xd40 fs/ext4/super.c:6980 Read of size 8 at addr ffff8880a1dde1d0 by task syz-executor.3/19707 CPU: 1 PID: 19707 Comm: syz-executor.3 Not tainted 6.1.22-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 lockdep_set_quota_inode fs/ext4/super.c:6822 [inline] ext4_quota_enable fs/ext4/super.c:6953 [inline] ext4_enable_quotas+0x5d3/0xd40 fs/ext4/super.c:6980 __ext4_fill_super fs/ext4/super.c:5516 [inline] ext4_fill_super+0x81c4/0x8b20 fs/ext4/super.c:5659 get_tree_bdev+0x3fe/0x620 fs/super.c:1346 vfs_get_tree+0x88/0x270 fs/super.c:1553 do_new_mount+0x28b/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568 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+0x63/0xcd RIP: 0033:0x7f13ac68d69a 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:00007f13ad446f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000004a6 RCX: 00007f13ac68d69a RDX: 00000000200004c0 RSI: 0000000020000500 RDI: 00007f13ad446fe0 RBP: 00007f13ad447020 R08: 00007f13ad447020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000200004c0 R13: 0000000020000500 R14: 00007f13ad446fe0 R15: 0000000020000240 Allocated by task 19040: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x50/0x370 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc_lru+0x10c/0x2d0 mm/slub.c:3429 alloc_inode_sb include/linux/fs.h:3131 [inline] f2fs_alloc_inode+0x171/0x540 fs/f2fs/super.c:1366 alloc_inode fs/inode.c:259 [inline] iget_locked+0x1c8/0x830 fs/inode.c:1286 f2fs_iget+0x51/0x4de0 fs/f2fs/inode.c:505 f2fs_fill_super+0x4ab4/0x7cb0 fs/f2fs/super.c:4231 mount_bdev+0x26d/0x3a0 fs/super.c:1423 legacy_get_tree+0xeb/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1553 do_new_mount+0x28b/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568 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+0x63/0xcd Last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486 call_rcu+0x163/0xa10 kernel/rcu/tree.c:2798 f2fs_put_super+0x65d/0xc00 fs/f2fs/super.c:1597 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_block_super+0x7a/0xe0 fs/super.c:1450 kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4612 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd Second to last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486 call_rcu+0x163/0xa10 kernel/rcu/tree.c:2798 f2fs_put_super+0x61c/0xc00 fs/f2fs/super.c:1594 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_block_super+0x7a/0xe0 fs/super.c:1450 kill_f2fs_super+0x2ff/0x3c0 fs/f2fs/super.c:4612 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff8880a1ddd910 which belongs to the cache f2fs_inode_cache of size 2152 The buggy address is located 88 bytes to the right of 2152-byte region [ffff8880a1ddd910, ffff8880a1dde178) The buggy address belongs to the physical page: page:ffffea0002877600 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880a1ddc740 pfn:0xa1dd8 head:ffffea0002877600 order:3 compound_mapcount:0 compound_pincount:0 memcg:ffff888098e8c301 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 dead000000000122 ffff8881469ebdc0 raw: ffff8880a1ddc740 00000000800e0006 00000001ffffffff ffff888098e8c301 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 13925, tgid 13924 (syz-executor.1), ts 1046319353475, free_ts 1045955026690 prep_new_page mm/page_alloc.c:2540 [inline] get_page_from_freelist+0x32ed/0x3480 mm/page_alloc.c:4292 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5559 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xa71/0x1080 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc_lru+0x1a5/0x2d0 mm/slub.c:3429 alloc_inode_sb include/linux/fs.h:3131 [inline] f2fs_alloc_inode+0x171/0x540 fs/f2fs/super.c:1366 alloc_inode fs/inode.c:259 [inline] iget_locked+0x1c8/0x830 fs/inode.c:1286 f2fs_iget+0x51/0x4de0 fs/f2fs/inode.c:505 f2fs_fill_super+0x5f74/0x7cb0 fs/f2fs/super.c:4333 mount_bdev+0x26d/0x3a0 fs/super.c:1423 legacy_get_tree+0xeb/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1553 do_new_mount+0x28b/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1460 [inline] free_pcp_prepare mm/page_alloc.c:1510 [inline] free_unref_page_prepare+0xf5e/0x1110 mm/page_alloc.c:3388 free_unref_page+0x98/0x570 mm/page_alloc.c:3484 qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x50/0x370 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422 getname_flags+0xb8/0x4e0 fs/namei.c:139 user_path_at_empty+0x2a/0x180 fs/namei.c:2875 user_path_at include/linux/namei.h:57 [inline] ksys_umount fs/namespace.c:1822 [inline] __do_sys_umount fs/namespace.c:1830 [inline] __se_sys_umount fs/namespace.c:1828 [inline] __x64_sys_umount+0xf0/0x170 fs/namespace.c:1828 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+0x63/0xcd Memory state around the buggy address: ffff8880a1dde080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880a1dde100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc >ffff8880a1dde180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc 00 ^ ffff8880a1dde200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880a1dde280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================