Re: [syzbot] [ntfs3?] memory leak in run_add_entry (2)

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
memory leak in run_add_entry

BUG: memory leak
unreferenced object 0xffff8881293eb400 (size 64):
  comm "syz.0.17", pid 6727, jiffies 4294946367
  hex dump (first 32 bytes):
    00 00 00 00 01 00 00 00 1e 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 692543f4):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4543 [inline]
    slab_alloc_node mm/slub.c:4866 [inline]
    __do_kmalloc_node mm/slub.c:5259 [inline]
    __kvmalloc_node_noprof+0x53d/0x770 mm/slub.c:6752
    run_add_entry+0x108/0x730 fs/ntfs3/run.c:390
    attr_allocate_clusters+0x15a/0x450 fs/ntfs3/attrib.c:199
    indx_create_allocate fs/ntfs3/index.c:1449 [inline]
    indx_insert_into_root+0x575/0xb50 fs/ntfs3/index.c:1705
    indx_insert_entry+0x182/0x290 fs/ntfs3/index.c:1995
    ni_add_name+0x1ab/0x2e0 fs/ntfs3/frecord.c:2764
    ntfs_link_inode+0x95/0xc0 fs/ntfs3/inode.c:1794
    ntfs_link+0xb4/0x180 fs/ntfs3/namei.c:146
    vfs_link+0x270/0x5a0 fs/namei.c:5746
    filename_linkat+0x262/0x3c0 fs/namei.c:5814
    __do_sys_link fs/namei.c:5847 [inline]
    __se_sys_link fs/namei.c:5843 [inline]
    __x64_sys_link+0x4b/0x70 fs/namei.c:5843
    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
    do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: memory leak
unreferenced object 0xffff888108dbf5c0 (size 64):
  comm "syz.0.18", pid 6734, jiffies 4294946376
  hex dump (first 32 bytes):
    00 00 00 00 01 00 00 00 1e 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 692543f4):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4543 [inline]
    slab_alloc_node mm/slub.c:4866 [inline]
    __do_kmalloc_node mm/slub.c:5259 [inline]
    __kvmalloc_node_noprof+0x53d/0x770 mm/slub.c:6752
    run_add_entry+0x108/0x730 fs/ntfs3/run.c:390
    attr_allocate_clusters+0x15a/0x450 fs/ntfs3/attrib.c:199
    indx_create_allocate fs/ntfs3/index.c:1449 [inline]
    indx_insert_into_root+0x575/0xb50 fs/ntfs3/index.c:1705
    indx_insert_entry+0x182/0x290 fs/ntfs3/index.c:1995
    ni_add_name+0x1ab/0x2e0 fs/ntfs3/frecord.c:2764
    ntfs_link_inode+0x95/0xc0 fs/ntfs3/inode.c:1794
    ntfs_link+0xb4/0x180 fs/ntfs3/namei.c:146
    vfs_link+0x270/0x5a0 fs/namei.c:5746
    filename_linkat+0x262/0x3c0 fs/namei.c:5814
    __do_sys_link fs/namei.c:5847 [inline]
    __se_sys_link fs/namei.c:5843 [inline]
    __x64_sys_link+0x4b/0x70 fs/namei.c:5843
    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
    do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF


Tested on:

commit:         42bddab0 Merge tag 'execve-v7.0-rc5' of git://git.kern..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1059ca06580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e2bba615ee79faa5
dashboard link: https://syzkaller.appspot.com/bug?extid=7adcddaeeb860e5d3f2f
compiler:       gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
patch:          https://syzkaller.appspot.com/x/patch.diff?x=10d866da580000