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CVE-2022-50367
fs: fix UAF/GPF bug in nilfs_mdt_destroy
High7.8EPSS 0.22%
- Published
- Updated
- Reserved
- Assigned by
- Linux
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)
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < d1ff475d7c83289d0a7faef346ea3bbf90818bad
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < c0aa76b0f17f59dd9c9d3463550a2986a1d592e4
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 70e4f70d54e0225f91814e8610477d65f33cefe4
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 1e555c3ed1fce4b278aaebe18a64a934cece57d8
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 64b79e632869ad3ef6c098a4731d559381da1115
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 81de80330fa6907aec32eb54c5619059e6e36452
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 2a96b532098284ecf8e4849b8b9e5fc7a28bdee9
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 2e488f13755ffbb60f307e991b27024716a33b29
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 4.9.331 – ≤ 4.9.*
- unaffected 4.14.296 – ≤ 4.14.*
- unaffected 4.19.262 – ≤ 4.19.*
- unaffected 5.4.218 – ≤ 5.4.*
- unaffected 5.10.148 – ≤ 5.10.*
- unaffected 5.15.73 – ≤ 5.15.*
- unaffected 5.19.15 – ≤ 5.19.*
- unaffected 6.0.1 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (9)
- https://git.kernel.org/stable/c/d1ff475d7c83289d0a7faef346ea3bbf90818bad (opens in a new tab)
- https://git.kernel.org/stable/c/c0aa76b0f17f59dd9c9d3463550a2986a1d592e4 (opens in a new tab)
- https://git.kernel.org/stable/c/ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48 (opens in a new tab)
- https://git.kernel.org/stable/c/70e4f70d54e0225f91814e8610477d65f33cefe4 (opens in a new tab)
- https://git.kernel.org/stable/c/1e555c3ed1fce4b278aaebe18a64a934cece57d8 (opens in a new tab)
- https://git.kernel.org/stable/c/64b79e632869ad3ef6c098a4731d559381da1115 (opens in a new tab)
- https://git.kernel.org/stable/c/81de80330fa6907aec32eb54c5619059e6e36452 (opens in a new tab)
- https://git.kernel.org/stable/c/2a96b532098284ecf8e4849b8b9e5fc7a28bdee9 (opens in a new tab)
- https://git.kernel.org/stable/c/2e488f13755ffbb60f307e991b27024716a33b29 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-50367)Record last updated .