================================================================== BUG: KASAN: slab-out-of-bounds in lockdep_set_quota_inode fs/ext4/super.c:6801 [inline] BUG: KASAN: slab-out-of-bounds in ext4_quota_enable fs/ext4/super.c:6932 [inline] BUG: KASAN: slab-out-of-bounds in ext4_enable_quotas+0x4b4/0xab4 fs/ext4/super.c:6959 Read of size 8 at addr ffff00012cc411a8 by task syz-executor.1/21145 CPU: 0 PID: 21145 Comm: syz-executor.1 Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:319 [inline] print_report+0x174/0x514 mm/kasan/report.c:430 kasan_report+0xd4/0x130 mm/kasan/report.c:536 __asan_report_load8_noabort+0x2c/0x38 mm/kasan/report_generic.c:381 lockdep_set_quota_inode fs/ext4/super.c:6801 [inline] ext4_quota_enable fs/ext4/super.c:6932 [inline] ext4_enable_quotas+0x4b4/0xab4 fs/ext4/super.c:6959 __ext4_fill_super fs/ext4/super.c:5494 [inline] ext4_fill_super+0x62a8/0x6a30 fs/ext4/super.c:5637 get_tree_bdev+0x360/0x54c fs/super.c:1294 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5668 vfs_get_tree+0x90/0x274 fs/super.c:1501 do_new_mount+0x25c/0x8c8 fs/namespace.c:3042 path_mount+0x590/0xe20 fs/namespace.c:3372 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount fs/namespace.c:3571 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3571 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Allocated by task 6972: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x7c mm/kasan/common.c:52 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:510 __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:186 [inline] slab_post_alloc_hook+0x80/0x488 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+0x1bc/0x300 mm/slub.c:3483 alloc_inode_sb include/linux/fs.h:2686 [inline] f2fs_alloc_inode+0x150/0x4a8 fs/f2fs/super.c:1371 alloc_inode fs/inode.c:260 [inline] iget_locked+0x170/0x708 fs/inode.c:1287 f2fs_iget+0x5c/0x497c fs/f2fs/inode.c:504 f2fs_fill_super+0x4cf4/0x638c fs/f2fs/super.c:4356 mount_bdev+0x26c/0x368 fs/super.c:1371 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:610 vfs_get_tree+0x90/0x274 fs/super.c:1501 do_new_mount+0x25c/0x8c8 fs/namespace.c:3042 path_mount+0x590/0xe20 fs/namespace.c:3372 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount fs/namespace.c:3571 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3571 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Last potentially related work creation: kasan_save_stack+0x40/0x6c mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:491 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:501 __call_rcu_common kernel/rcu/tree.c:2622 [inline] call_rcu+0x104/0xb38 kernel/rcu/tree.c:2736 destroy_inode fs/inode.c:315 [inline] evict+0x5fc/0x68c fs/inode.c:680 iput_final fs/inode.c:1748 [inline] iput+0x988/0xa6c fs/inode.c:1774 f2fs_put_super+0x4fc/0xa28 fs/f2fs/super.c:1597 generic_shutdown_super+0x130/0x328 fs/super.c:491 kill_block_super+0x70/0xdc fs/super.c:1398 kill_f2fs_super+0x268/0x32c fs/f2fs/super.c:4635 deactivate_locked_super+0xac/0x124 fs/super.c:331 deactivate_super+0xf0/0x110 fs/super.c:362 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1177 __cleanup_mnt+0x20/0x30 fs/namespace.c:1184 task_work_run+0x240/0x2f0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2180/0x3c90 arch/arm64/kernel/signal.c:1302 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Second to last potentially related work creation: kasan_save_stack+0x40/0x6c mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:491 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:501 __call_rcu_common kernel/rcu/tree.c:2622 [inline] call_rcu+0x104/0xb38 kernel/rcu/tree.c:2736 destroy_inode fs/inode.c:315 [inline] evict+0x5fc/0x68c fs/inode.c:680 iput_final fs/inode.c:1748 [inline] iput+0x988/0xa6c fs/inode.c:1774 f2fs_fill_super+0x5020/0x638c fs/f2fs/super.c:4539 mount_bdev+0x26c/0x368 fs/super.c:1371 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:610 vfs_get_tree+0x90/0x274 fs/super.c:1501 do_new_mount+0x25c/0x8c8 fs/namespace.c:3042 path_mount+0x590/0xe20 fs/namespace.c:3372 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount fs/namespace.c:3571 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3571 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 The buggy address belongs to the object at ffff00012cc408e8 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 [ffff00012cc408e8, ffff00012cc41150) The buggy address belongs to the physical page: page:000000004e32a1cf refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff00012cc45910 pfn:0x16cc40 head:000000004e32a1cf order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff0000c1465501 anon flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 ffff0000c10f7500 0000000000000000 0000000000000001 raw: ffff00012cc45910 00000000800e0001 00000001ffffffff ffff0000c1465501 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff00012cc41080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff00012cc41100: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc >ffff00012cc41180: fc fc fc fc fc fc fc fc fc fc 00 00 00 00 00 00 ^ ffff00012cc41200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff00012cc41280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== EXT4-fs warning (device loop1): ext4_enable_quotas:6967: Failed to enable quota tracking (type=0, err=-13, ino=3). Please run e2fsck to fix. EXT4-fs (loop1): mount failed