F2FS-fs (loop1): invalid crc value F2FS-fs (loop1): Found nat_bits in checkpoint F2FS-fs (loop1): Cannot turn on quotas: -2 on 0 F2FS-fs (loop3): invalid crc value ================================================================== BUG: KASAN: use-after-free in f2fs_evict_inode+0x100b/0x1330 fs/f2fs/inode.c:650 Read of size 4 at addr ffff88804e82dfd0 by task syz-executor.1/14475 CPU: 0 PID: 14475 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354 kasan_report mm/kasan/report.c:412 [inline] __asan_report_load4_noabort+0x88/0x90 mm/kasan/report.c:432 f2fs_evict_inode+0x100b/0x1330 fs/f2fs/inode.c:650 evict+0x2ed/0x760 fs/inode.c:559 iput_final fs/inode.c:1555 [inline] iput+0x4f1/0x860 fs/inode.c:1581 dentry_unlink_inode+0x265/0x320 fs/dcache.c:374 __dentry_kill+0x3c0/0x640 fs/dcache.c:566 dentry_kill+0xc4/0x510 fs/dcache.c:685 shrink_dentry_list+0x2ab/0x6e0 fs/dcache.c:1092 shrink_dcache_sb+0x144/0x220 fs/dcache.c:1212 f2fs_fill_super+0x1461/0x7050 fs/f2fs/super.c:3225 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fea6101a62a 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:00007fea5f58af88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000054f4 RCX: 00007fea6101a62a RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007fea5f58afe0 RBP: 00007fea5f58b020 R08: 00007fea5f58b020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000040 R13: 0000000020000080 R14: 00007fea5f58afe0 R15: 0000000020000180 Allocated by task 14475: kmem_cache_alloc_trace+0x12f/0x380 mm/slab.c:3625 kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] f2fs_fill_super+0xfd/0x7050 fs/f2fs/super.c:2821 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 14475: __cache_free mm/slab.c:3503 [inline] kfree+0xcc/0x210 mm/slab.c:3822 f2fs_fill_super+0x1439/0x7050 fs/f2fs/super.c:3220 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff88804e82d280 which belongs to the cache kmalloc-8192 of size 8192 The buggy address is located 3408 bytes inside of 8192-byte region [ffff88804e82d280, ffff88804e82f280) The buggy address belongs to the page: page:ffffea00013a0b00 count:1 mapcount:0 mapping:ffff88813bff2080 index:0x0 compound_mapcount: 0 flags: 0xfff00000008100(slab|head) raw: 00fff00000008100 ffffea0001458808 ffffea00014ff208 ffff88813bff2080 raw: 0000000000000000 ffff88804e82d280 0000000100000001 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88804e82de80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88804e82df00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88804e82df80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88804e82e000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88804e82e080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================