Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: fs: fix UAF/GPF bug in nilfs_mdt_destroy In alloc_inode, inode_init_always() could return -ENOMEM if security_inode_alloc() fails, which causes inode->i_private uninitialized. Then nilfs_is_metadata_file_inode() returns true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(), which frees the uninitialized inode->i_private and leads to crashes(e.g., UAF/GPF). Fix this by moving security_inode_alloc just prior to this_cpu_inc(nr_inodes)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before d1ff475d7c83289d0a7faef346ea3bbf90818bad; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before c0aa76b0f17f59dd9c9d3463550a2986a1d592e4; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 70e4f70d54e0225f91814e8610477d65f33cefe4; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 1e555c3ed1fce4b278aaebe18a64a934cece57d8; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 64b79e632869ad3ef6c098a4731d559381da1115; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 81de80330fa6907aec32eb54c5619059e6e36452; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2a96b532098284ecf8e4849b8b9e5fc7a28bdee9; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2e488f13755ffbb60f307e991b27024716a33b29 |
| Linux / Linux | affected 2.6.12; unaffected 0 before 2.6.12; unaffected 4.9.331 through 4.9.*; unaffected 4.14.296 through 4.14.*; unaffected 4.19.262 through 4.19.*; unaffected 5.4.218 through 5.4.*; unaffected 5.10.148 through 5.10.*; unaffected 5.15.73 through 5.15.*; unaffected 5.19.15 through 5.19.*; unaffected 6.0.1 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/d1ff475d7c83289d0a7faef346ea3bbf90818bad
- https://git.kernel.org/stable/c/c0aa76b0f17f59dd9c9d3463550a2986a1d592e4
- https://git.kernel.org/stable/c/ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48
- https://git.kernel.org/stable/c/70e4f70d54e0225f91814e8610477d65f33cefe4
- https://git.kernel.org/stable/c/1e555c3ed1fce4b278aaebe18a64a934cece57d8
- https://git.kernel.org/stable/c/64b79e632869ad3ef6c098a4731d559381da1115
- https://git.kernel.org/stable/c/81de80330fa6907aec32eb54c5619059e6e36452
- https://git.kernel.org/stable/c/2a96b532098284ecf8e4849b8b9e5fc7a28bdee9
- https://git.kernel.org/stable/c/2e488f13755ffbb60f307e991b27024716a33b29
ADP enrichment
No English description supplied.
No references supplied.