Tracker / CVE-2022-50367
CVE-2022-50367
High 7.8
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 products and versions
| linux | linux_kernel · … → 4.9.331 |
|---|---|
| linux | linux_kernel · 4.10 → 4.14.296 |
| linux | linux_kernel · 4.15 → 4.19.262 |
| linux | linux_kernel · 4.20 → 5.4.218 |
| linux | linux_kernel · 5.11 → 5.15.73 |
| linux | linux_kernel · 5.16 → 5.19.15 |
| linux | linux_kernel · 5.5 → 5.10.148 |
| linux | linux_kernel · 6.0 → 6.0.1 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.