CVE-2022-50367
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
17/09/2025
Última modificación:
17/09/2025
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
fs: fix UAF/GPF bug in nilfs_mdt_destroy<br />
<br />
In alloc_inode, inode_init_always() could return -ENOMEM if<br />
security_inode_alloc() fails, which causes inode->i_private<br />
uninitialized. Then nilfs_is_metadata_file_inode() returns<br />
true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(),<br />
which frees the uninitialized inode->i_private<br />
and leads to crashes(e.g., UAF/GPF).<br />
<br />
Fix this by moving security_inode_alloc just prior to<br />
this_cpu_inc(nr_inodes)
Impacto
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/1e555c3ed1fce4b278aaebe18a64a934cece57d8
- https://git.kernel.org/stable/c/2a96b532098284ecf8e4849b8b9e5fc7a28bdee9
- https://git.kernel.org/stable/c/2e488f13755ffbb60f307e991b27024716a33b29
- https://git.kernel.org/stable/c/64b79e632869ad3ef6c098a4731d559381da1115
- https://git.kernel.org/stable/c/70e4f70d54e0225f91814e8610477d65f33cefe4
- https://git.kernel.org/stable/c/81de80330fa6907aec32eb54c5619059e6e36452
- https://git.kernel.org/stable/c/c0aa76b0f17f59dd9c9d3463550a2986a1d592e4
- https://git.kernel.org/stable/c/d1ff475d7c83289d0a7faef346ea3bbf90818bad
- https://git.kernel.org/stable/c/ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48