================================================================== BUG: KASAN: slab-out-of-bounds in lockdep_set_quota_inode fs/ext4/super.c:6803 [inline] BUG: KASAN: slab-out-of-bounds in ext4_quota_enable fs/ext4/super.c:6913 [inline] BUG: KASAN: slab-out-of-bounds in ext4_enable_quotas+0x577/0xcf0 fs/ext4/super.c:6940 Read of size 8 at addr ffff88802b293df8 by task syz-executor.5/15873 CPU: 1 PID: 15873 Comm: syz-executor.5 Not tainted 6.1.0-rc7-syzkaller-00190-g97ee9d1c1696 #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+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report+0xcd/0x100 mm/kasan/report.c:495 lockdep_set_quota_inode fs/ext4/super.c:6803 [inline] ext4_quota_enable fs/ext4/super.c:6913 [inline] ext4_enable_quotas+0x577/0xcf0 fs/ext4/super.c:6940 __ext4_fill_super fs/ext4/super.c:5500 [inline] ext4_fill_super+0x7ee4/0x8610 fs/ext4/super.c:5643 get_tree_bdev+0x400/0x620 fs/super.c:1324 vfs_get_tree+0x88/0x270 fs/super.c:1531 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 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: 0033:0x7f102628d60a 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:00007f102703ff88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000004cd RCX: 00007f102628d60a RDX: 00000000200004c0 RSI: 0000000020000500 RDI: 00007f102703ffe0 RBP: 00007f1027040020 R08: 00007f1027040020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000200004c0 R13: 0000000020000500 R14: 00007f102703ffe0 R15: 0000000020000040 Allocated by task 8081: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:325 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:737 [inline] 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+0x180/0x2e0 mm/slub.c:3429 alloc_inode_sb include/linux/fs.h:3125 [inline] f2fs_alloc_inode+0x14d/0x520 fs/f2fs/super.c:1366 alloc_inode fs/inode.c:259 [inline] iget_locked+0x191/0x830 fs/inode.c:1286 f2fs_iget+0x51/0x4bb0 fs/f2fs/inode.c:505 f2fs_fill_super+0x5382/0x6c40 fs/f2fs/super.c:4341 mount_bdev+0x26c/0x3a0 fs/super.c:1401 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1531 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 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+0x2b/0x50 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:481 call_rcu+0x163/0x9c0 kernel/rcu/tree.c:2798 f2fs_put_super+0x5c7/0xb60 fs/f2fs/super.c:1596 generic_shutdown_super+0x130/0x310 fs/super.c:492 kill_block_super+0x79/0xd0 fs/super.c:1428 kill_f2fs_super+0x2f9/0x3c0 fs/f2fs/super.c:4612 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 cleanup_mnt+0x494/0x520 fs/namespace.c:1186 task_work_run+0x243/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296 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+0x2b/0x50 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:481 call_rcu+0x163/0x9c0 kernel/rcu/tree.c:2798 f2fs_put_super+0x5c7/0xb60 fs/f2fs/super.c:1596 generic_shutdown_super+0x130/0x310 fs/super.c:492 kill_block_super+0x79/0xd0 fs/super.c:1428 kill_f2fs_super+0x2f9/0x3c0 fs/f2fs/super.c:4612 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 cleanup_mnt+0x494/0x520 fs/namespace.c:1186 task_work_run+0x243/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296 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 ffff88802b293540 which belongs to the cache f2fs_inode_cache of size 2144 The buggy address is located 88 bytes to the right of 2144-byte region [ffff88802b293540, ffff88802b293da0) The buggy address belongs to the physical page: page:ffffea0000aca400 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802b296a80 pfn:0x2b290 head:ffffea0000aca400 order:3 compound_mapcount:0 compound_pincount:0 memcg:ffff888028457101 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffff88801cb9ed08 ffffea0000d50008 ffff88801cbef3c0 raw: ffff88802b296a80 00000000000e000b 00000001ffffffff ffff888028457101 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 6262, tgid 6261 (syz-executor.1), ts 239388613781, free_ts 238355802267 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4291 __alloc_pages+0x259/0x560 mm/page_alloc.c:5558 alloc_slab_page+0xbd/0x190 mm/slub.c:1794 allocate_slab+0x5e/0x4b0 mm/slub.c:1939 new_slab mm/slub.c:1992 [inline] ___slab_alloc+0x782/0xe20 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+0x233/0x2e0 mm/slub.c:3429 alloc_inode_sb include/linux/fs.h:3125 [inline] f2fs_alloc_inode+0x14d/0x520 fs/f2fs/super.c:1366 alloc_inode fs/inode.c:259 [inline] new_inode_pseudo+0x61/0x1d0 fs/inode.c:1018 new_inode+0x25/0x1d0 fs/inode.c:1046 f2fs_new_inode+0xf0/0x1150 fs/f2fs/namei.c:36 f2fs_create+0x166/0xef0 fs/f2fs/namei.c:355 lookup_open fs/namei.c:3413 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x12d0/0x2df0 fs/namei.c:3711 do_filp_open+0x264/0x4f0 fs/namei.c:3741 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_open fs/open.c:1334 [inline] __se_sys_open fs/open.c:1330 [inline] __x64_sys_open+0x221/0x270 fs/open.c:1330 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:1459 [inline] free_pcp_prepare+0x80c/0x8f0 mm/page_alloc.c:1509 free_unref_page_prepare mm/page_alloc.c:3387 [inline] free_unref_page+0x7d/0x5f0 mm/page_alloc.c:3483 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x169/0x180 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:302 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:737 [inline] 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+0x1cc/0x300 mm/slub.c:3422 ptlock_alloc+0x1c/0x60 mm/memory.c:5841 ptlock_init include/linux/mm.h:2357 [inline] pgtable_pte_page_ctor include/linux/mm.h:2384 [inline] __pte_alloc_one include/asm-generic/pgalloc.h:66 [inline] pte_alloc_one+0xc3/0x320 arch/x86/mm/pgtable.c:33 __pte_alloc+0x75/0x220 mm/memory.c:468 do_anonymous_page+0xe00/0x1150 mm/memory.c:4081 handle_pte_fault mm/memory.c:4952 [inline] __handle_mm_fault mm/memory.c:5096 [inline] handle_mm_fault+0x184e/0x3630 mm/memory.c:5217 do_user_addr_fault+0x69b/0xcb0 arch/x86/mm/fault.c:1428 handle_page_fault arch/x86/mm/fault.c:1519 [inline] exc_page_fault+0x7a/0x110 arch/x86/mm/fault.c:1575 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 Memory state around the buggy address: ffff88802b293c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88802b293d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88802b293d80: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88802b293e00: fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00 ffff88802b293e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================