CVE-2025-71312

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()<br /> <br /> In ntfs_fill_super(), the fc-&gt;fs_private pointer is set to NULL without<br /> first freeing the memory it points to. This causes the subsequent call to<br /> ntfs_fs_free() to skip freeing the ntfs_mount_options structure.<br /> <br /> This results in a kmemleak report:<br /> <br /> unreferenced object 0xff1100015378b800 (size 32):<br /> comm "mount", pid 582, jiffies 4294890685<br /> hex dump (first 32 bytes):<br /> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................<br /> 00 00 00 00 00 00 00 00 ed ff ed ff 00 04 00 00 ................<br /> backtrace (crc ed541d8c):<br /> __kmalloc_cache_noprof+0x424/0x5a0<br /> __ntfs_init_fs_context+0x47/0x590<br /> alloc_fs_context+0x5d8/0x960<br /> __x64_sys_fsopen+0xb1/0x190<br /> do_syscall_64+0x50/0x1f0<br /> entry_SYSCALL_64_after_hwframe+0x76/0x7e<br /> <br /> This issue can be reproduced using the following commands:<br /> fallocate -l 100M test.file<br /> mount test.file /tmp/test<br /> <br /> Since sbi-&gt;options is duplicated from fc-&gt;fs_private and does not<br /> directly use the memory allocated for fs_private, it is unnecessary to<br /> set fc-&gt;fs_private to NULL.<br /> <br /> Additionally, this patch simplifies the code by utilizing the helper<br /> function put_mount_options() instead of open-coding the cleanup logic.