EXT4-fs: Quota format mount options ignored when QUOTA feature is enabled ================================================================== BUG: KASAN: slab-out-of-bounds in lockdep_set_quota_inode fs/ext4/super.c:6805 [inline] BUG: KASAN: slab-out-of-bounds in ext4_quota_enable fs/ext4/super.c:6936 [inline] BUG: KASAN: slab-out-of-bounds in ext4_enable_quotas+0xa74/0xd10 fs/ext4/super.c:6963 Read of size 1 at addr ffff8880814d08ea by task syz-executor.3/11519 CPU: 1 PID: 11519 Comm: syz-executor.3 Not tainted 6.2.0-rc4-syzkaller-00031-g6e50979a9c87 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 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+0xbf/0x1f0 mm/kasan/report.c:517 lockdep_set_quota_inode fs/ext4/super.c:6805 [inline] ext4_quota_enable fs/ext4/super.c:6936 [inline] ext4_enable_quotas+0xa74/0xd10 fs/ext4/super.c:6963 __ext4_fill_super fs/ext4/super.c:5501 [inline] ext4_fill_super+0xaaf5/0xb220 fs/ext4/super.c:5644 get_tree_bdev+0x444/0x760 fs/super.c:1282 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: 0033:0x7f196ee8d5fa 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:00007f196fc28f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000004ae RCX: 00007f196ee8d5fa RDX: 00000000200004c0 RSI: 0000000020000040 RDI: 00007f196fc28fe0 RBP: 00007f196fc29020 R08: 00007f196fc29020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000200004c0 R13: 0000000020000040 R14: 00007f196fc28fe0 R15: 0000000020000000 Allocated by task 31236: 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:325 kasan_slab_alloc include/linux/kasan.h:201 [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+0x26d/0x760 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/0x700 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+0x99/0x820 kernel/rcu/tree.c:2755 destroy_inode+0x129/0x1b0 fs/inode.c:314 iput_final fs/inode.c:1747 [inline] iput.part.0+0x59b/0x880 fs/inode.c:1773 iput+0x5c/0x80 fs/inode.c:1763 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 Second to 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+0x99/0x820 kernel/rcu/tree.c:2755 destroy_inode+0x129/0x1b0 fs/inode.c:314 dispose_list+0x117/0x1e0 fs/inode.c:697 evict_inodes+0x356/0x450 fs/inode.c:747 generic_shutdown_super+0xaf/0x410 fs/super.c:480 kill_block_super+0x9b/0xf0 fs/super.c:1386 kill_f2fs_super+0x2af/0x3c0 fs/f2fs/super.c:4640 deactivate_locked_super+0x98/0x160 fs/super.c:332 deactivate_super+0xb1/0xd0 fs/super.c:363 cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1291 task_work_run+0x16f/0x270 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff8880814d0000 which belongs to the cache f2fs_inode_cache of size 2160 The buggy address is located 122 bytes to the right of 2160-byte region [ffff8880814d0000, ffff8880814d0870) The buggy address belongs to the physical page: page:ffffea0002053400 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880814d11e0 pfn:0x814d0 head:ffffea0002053400 order:3 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0 memcg:ffff88807c753301 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffff88801aa9d8c0 dead000000000122 0000000000000000 raw: ffff8880814d11e0 00000000800e0009 00000001ffffffff ffff88807c753301 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 6186, tgid 6183 (syz-executor.0), ts 385286530806, free_ts 382597709802 prep_new_page mm/page_alloc.c:2531 [inline] get_page_from_freelist+0x119c/0x2ce0 mm/page_alloc.c:4283 __alloc_pages+0x1cb/0x5b0 mm/page_alloc.c:5549 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2286 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+0x4dc/0x760 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/0x700 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:1446 [inline] free_pcp_prepare+0x65c/0xc00 mm/page_alloc.c:1496 free_unref_page_prepare mm/page_alloc.c:3369 [inline] free_unref_page+0x1d/0x490 mm/page_alloc.c:3464 __unfreeze_partials+0x17c/0x1a0 mm/slub.c:2637 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:302 kasan_slab_alloc include/linux/kasan.h:201 [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+0x1e4/0x430 mm/slub.c:3476 getname_flags.part.0+0x50/0x4f0 fs/namei.c:139 getname_flags include/linux/audit.h:320 [inline] getname+0x92/0xd0 fs/namei.c:218 do_sys_openat2+0xf5/0x4c0 fs/open.c:1304 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x143/0x1f0 fs/open.c:1337 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: ffff8880814d0780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880814d0800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc >ffff8880814d0880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc 00 00 ^ ffff8880814d0900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880814d0980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================