CVE-2022-50367
High
Description
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)
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedSep 17, 2025
First seenSep 17, 2025
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel4.9.331, 4.14.296, 4.19.262, 5.4.218, 5.10.148, 5.15.73, 5.19.15, 6.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 4.9.331, 4.10 ≤ v < 4.14.296, 4.15 ≤ v < 4.19.262, 4.20 ≤ v < 5.4.218, 5.5 ≤ v < 5.10.148, 5.11 ≤ v < 5.15.73, 5.16 ≤ v < 5.19.15, 6.0 ≤ v < 6.0.1 | 4.9.331, 4.14.296, 4.19.262, 5.4.218, 5.10.148, 5.15.73, 5.19.15, 6.0.1 |
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