F2FS-fs (loop5): Found nat_bits in checkpoint F2FS-fs (loop1): Found nat_bits in checkpoint F2FS-fs (loop5): Cannot turn on journaled quota: error -2 F2FS-fs (loop1): Failed to initialize F2FS segment manager ================================================================== BUG: KASAN: use-after-free in f2fs_evict_inode+0xdad/0x1070 fs/f2fs/inode.c:544 Read of size 4 at addr ffff88803a5e6a30 by task syz-executor.5/11854 CPU: 1 PID: 11854 Comm: syz-executor.5 Not tainted 4.14.307-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:251 kasan_report_error.cold+0x8a/0x191 mm/kasan/report.c:350 kasan_report mm/kasan/report.c:408 [inline] __asan_report_load4_noabort+0x68/0x70 mm/kasan/report.c:428 f2fs_evict_inode+0xdad/0x1070 fs/f2fs/inode.c:544 evict+0x2c8/0x700 fs/inode.c:554 iput_final fs/inode.c:1523 [inline] iput+0x458/0x7e0 fs/inode.c:1550 dentry_unlink_inode+0x25c/0x310 fs/dcache.c:387 __dentry_kill+0x320/0x550 fs/dcache.c:591 shrink_dentry_list+0x2c2/0xac0 fs/dcache.c:1069 shrink_dcache_sb+0x105/0x1b0 fs/dcache.c:1191 f2fs_fill_super+0x127f/0x56a0 fs/f2fs/super.c:2767 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fd7178d962a RSP: 002b:00007fd715e49f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000054f4 RCX: 00007fd7178d962a RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007fd715e49fe0 RBP: 00007fd715e4a020 R08: 00007fd715e4a020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000040 R13: 0000000020000080 R14: 00007fd715e49fe0 R15: 0000000020000180 Allocated by task 11854: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 kmem_cache_alloc_trace+0x131/0x3d0 mm/slab.c:3618 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] f2fs_fill_super+0xef/0x56a0 fs/f2fs/super.c:2407 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 Freed by task 11854: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524 __cache_free mm/slab.c:3496 [inline] kfree+0xc9/0x250 mm/slab.c:3815 f2fs_fill_super+0x1263/0x56a0 fs/f2fs/super.c:2762 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 The buggy address belongs to the object at ffff88803a5e6100 which belongs to the cache kmalloc-4096 of size 4096 The buggy address is located 2352 bytes inside of 4096-byte region [ffff88803a5e6100, ffff88803a5e7100) The buggy address belongs to the page: page:ffffea0000e97980 count:1 mapcount:0 mapping:ffff88803a5e6100 index:0x0 compound_mapcount: 0 flags: 0xfff00000008100(slab|head) raw: 00fff00000008100 ffff88803a5e6100 0000000000000000 0000000100000001 raw: ffffea00029c6fa0 ffffea0000eac320 ffff88813fe74dc0 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88803a5e6900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88803a5e6980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88803a5e6a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88803a5e6a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88803a5e6b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================