CVE-2022-50869
fs/ntfs3: Fix slab-out-of-bounds in r_page
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix slab-out-of-bounds in r_page When PAGE_SIZE is 64K, if read_log_page is called by log_read_rst for the first time, the size of *buffer would be equal to DefaultLogPageSize(4K).But for *buffer operations like memcpy, if the memory area size(n) which being assigned to buffer is larger than 4K (log->page_size(64K) or bytes(64K-page_off)), it will cause an out of boundary error. Call trace: [...] kasan_report+0x44/0x130 check_memory_region+0xf8/0x1a0 memcpy+0xc8/0x100 ntfs_read_run_nb+0x20c/0x460 read_log_page+0xd0/0x1f4 log_read_rst+0x110/0x75c log_replay+0x1e8/0x4aa0 ntfs_loadlog_and_replay+0x290/0x2d0 ntfs_fill_super+0x508/0xec0 get_tree_bdev+0x1fc/0x34c [...] Fix this by setting variable r_page to NULL in log_read_rst.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected b46acd6a6a627d876898e1c84d3f84902264b445 – < ed686e7a26dd19ae6b46bb662f735acfa88ff7bc
- affected b46acd6a6a627d876898e1c84d3f84902264b445 – < bf86a640a34947d92062996e1a75b9cd9d83dd19
- affected b46acd6a6a627d876898e1c84d3f84902264b445 – < 6d076293e5bffdf897ea5f975669206e09beed6a
- affected b46acd6a6a627d876898e1c84d3f84902264b445 – < ecfbd57cf9c5ca225184ae266ce44ae473792132
- affected 5.15
- unaffected < 5.15
- unaffected 5.15.87 – ≤ 5.15.*
- unaffected 6.0.17 – ≤ 6.0.*
- unaffected 6.1.3 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References (4)
- https://git.kernel.org/stable/c/ed686e7a26dd19ae6b46bb662f735acfa88ff7bc (opens in a new tab)
- https://git.kernel.org/stable/c/bf86a640a34947d92062996e1a75b9cd9d83dd19 (opens in a new tab)
- https://git.kernel.org/stable/c/6d076293e5bffdf897ea5f975669206e09beed6a (opens in a new tab)
- https://git.kernel.org/stable/c/ecfbd57cf9c5ca225184ae266ce44ae473792132 (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-2022-50869)Record last updated .