================================================================== BUG: KASAN: slab-out-of-bounds in lockdep_set_quota_inode fs/ext4/super.c:6835 [inline] BUG: KASAN: slab-out-of-bounds in ext4_quota_enable fs/ext4/super.c:6966 [inline] BUG: KASAN: slab-out-of-bounds in ext4_enable_quotas+0x5d7/0xd50 fs/ext4/super.c:6993 Read of size 8 at addr ffff8880395fa378 by task syz-executor.1/6421 CPU: 1 PID: 6421 Comm: syz-executor.1 Not tainted 6.3.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:319 [inline] print_report+0x163/0x540 mm/kasan/report.c:430 kasan_report+0x176/0x1b0 mm/kasan/report.c:536 lockdep_set_quota_inode fs/ext4/super.c:6835 [inline] ext4_quota_enable fs/ext4/super.c:6966 [inline] ext4_enable_quotas+0x5d7/0xd50 fs/ext4/super.c:6993 __ext4_fill_super fs/ext4/super.c:5494 [inline] ext4_fill_super+0x802e/0x8990 fs/ext4/super.c:5637 get_tree_bdev+0x402/0x620 fs/super.c:1303 vfs_get_tree+0x8c/0x270 fs/super.c:1510 do_new_mount+0x28f/0xae0 fs/namespace.c:3042 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3571 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f925288d69a 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:00007f9253589f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000004a6 RCX: 00007f925288d69a RDX: 00000000200004c0 RSI: 0000000020000500 RDI: 00007f9253589fe0 RBP: 00007f925358a020 R08: 00007f925358a020 R09: 0000000000200810 R10: 0000000000200810 R11: 0000000000000202 R12: 00000000200004c0 R13: 0000000020000500 R14: 00007f9253589fe0 R15: 0000000020000200 Allocated by task 1359: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:186 [inline] slab_post_alloc_hook+0x68/0x3a0 mm/slab.h:769 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+0x11f/0x2e0 mm/slub.c:3483 alloc_inode_sb include/linux/fs.h:2686 [inline] f2fs_alloc_inode+0x167/0x530 fs/f2fs/super.c:1371 alloc_inode fs/inode.c:260 [inline] iget_locked+0x1cc/0x830 fs/inode.c:1287 f2fs_iget+0x56/0x4b30 fs/f2fs/inode.c:504 f2fs_fill_super+0x5f8e/0x7cf0 fs/f2fs/super.c:4356 mount_bdev+0x271/0x3a0 fs/super.c:1380 legacy_get_tree+0xef/0x190 fs/fs_context.c:610 vfs_get_tree+0x8c/0x270 fs/super.c:1510 do_new_mount+0x28f/0xae0 fs/namespace.c:3042 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3571 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:491 __call_rcu_common kernel/rcu/tree.c:2622 [inline] call_rcu+0x167/0xa70 kernel/rcu/tree.c:2736 f2fs_put_super+0x5e0/0xc80 fs/f2fs/super.c:1597 generic_shutdown_super+0x134/0x340 fs/super.c:500 kill_block_super+0x7e/0xe0 fs/super.c:1407 kill_f2fs_super+0x303/0x3d0 fs/f2fs/super.c:4635 deactivate_locked_super+0xa4/0x110 fs/super.c:331 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177 task_work_run+0x24a/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+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd Second to last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:491 __call_rcu_common kernel/rcu/tree.c:2622 [inline] call_rcu+0x167/0xa70 kernel/rcu/tree.c:2736 f2fs_fill_super+0x6355/0x7cf0 fs/f2fs/super.c:4539 mount_bdev+0x271/0x3a0 fs/super.c:1380 legacy_get_tree+0xef/0x190 fs/fs_context.c:610 vfs_get_tree+0x8c/0x270 fs/super.c:1510 do_new_mount+0x28f/0xae0 fs/namespace.c:3042 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3571 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff8880395f9ab8 which belongs to the cache f2fs_inode_cache of size 2152 The buggy address is located 88 bytes to the right of allocated 2152-byte region [ffff8880395f9ab8, ffff8880395fa320) The buggy address belongs to the physical page: page:ffffea0000e57e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880395fd028 pfn:0x395f8 head:ffffea0000e57e00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff888065ac6401 ksm flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffff88801c338140 ffffea0000e71400 dead000000000003 raw: ffff8880395fd028 00000000800e0001 00000001ffffffff ffff888065ac6401 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 30572, tgid 30523 (syz-executor.5), ts 3061529122590, free_ts 3058624239864 prep_new_page mm/page_alloc.c:2553 [inline] get_page_from_freelist+0x3246/0x33c0 mm/page_alloc.c:4326 __alloc_pages+0x255/0x670 mm/page_alloc.c:5592 alloc_slab_page+0x6a/0x160 mm/slub.c:1851 allocate_slab mm/slub.c:1998 [inline] new_slab+0x84/0x2f0 mm/slub.c:2051 ___slab_alloc+0xa85/0x10a0 mm/slub.c:3193 __slab_alloc mm/slub.c:3292 [inline] __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+0x1b9/0x2e0 mm/slub.c:3483 alloc_inode_sb include/linux/fs.h:2686 [inline] f2fs_alloc_inode+0x167/0x530 fs/f2fs/super.c:1371 alloc_inode fs/inode.c:260 [inline] new_inode_pseudo+0x65/0x1d0 fs/inode.c:1019 new_inode+0x29/0x1d0 fs/inode.c:1047 f2fs_new_inode+0x120/0x1090 fs/f2fs/namei.c:217 __f2fs_tmpfile+0xa5/0x380 fs/f2fs/namei.c:852 f2fs_tmpfile+0x14d/0x220 fs/f2fs/namei.c:921 vfs_tmpfile+0x338/0x4a0 fs/namei.c:3611 do_tmpfile+0x156/0x330 fs/namei.c:3672 path_openat+0x29c9/0x3170 fs/namei.c:3706 do_filp_open+0x234/0x490 fs/namei.c:3742 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1454 [inline] free_pcp_prepare mm/page_alloc.c:1504 [inline] free_unref_page_prepare+0xe2f/0xe70 mm/page_alloc.c:3388 free_unref_page+0x37/0x3f0 mm/page_alloc.c:3483 qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:186 [inline] slab_post_alloc_hook+0x68/0x3a0 mm/slab.h:769 slab_alloc_node mm/slub.c:3452 [inline] __kmem_cache_alloc_node+0x14c/0x290 mm/slub.c:3491 __do_kmalloc_node mm/slab_common.c:966 [inline] __kmalloc+0xa8/0x230 mm/slab_common.c:980 kmalloc include/linux/slab.h:584 [inline] kzalloc include/linux/slab.h:720 [inline] xt_jumpstack_alloc net/netfilter/x_tables.c:1334 [inline] xt_replace_table+0x91/0x760 net/netfilter/x_tables.c:1393 __do_replace+0x1ae/0xa40 net/ipv4/netfilter/ip_tables.c:1066 do_replace net/ipv4/netfilter/ip_tables.c:1139 [inline] do_ipt_set_ctl+0x2844/0x3da0 net/ipv4/netfilter/ip_tables.c:1629 nf_setsockopt+0x28e/0x2c0 net/netfilter/nf_sockopt.c:101 __sys_setsockopt+0x545/0x980 net/socket.c:2271 __do_sys_setsockopt net/socket.c:2282 [inline] __se_sys_setsockopt net/socket.c:2279 [inline] __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2279 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff8880395fa200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880395fa280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880395fa300: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8880395fa380: fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880395fa400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 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