CVE-2022-50869 (GCVE-0-2022-50869)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:15 – Updated: 2026-01-02 15:05
VLAI?
Title
fs/ntfs3: Fix slab-out-of-bounds in r_page
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: b46acd6a6a627d876898e1c84d3f84902264b445 , < ed686e7a26dd19ae6b46bb662f735acfa88ff7bc (git)
Affected: b46acd6a6a627d876898e1c84d3f84902264b445 , < bf86a640a34947d92062996e1a75b9cd9d83dd19 (git)
Affected: b46acd6a6a627d876898e1c84d3f84902264b445 , < 6d076293e5bffdf897ea5f975669206e09beed6a (git)
Affected: b46acd6a6a627d876898e1c84d3f84902264b445 , < ecfbd57cf9c5ca225184ae266ce44ae473792132 (git)
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    Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.17 , ≤ 6.0.* (semver)
Unaffected: 6.1.3 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix slab-out-of-bounds in r_page\n\nWhen PAGE_SIZE is 64K, if read_log_page is called by log_read_rst for\nthe first time, the size of *buffer would be equal to\nDefaultLogPageSize(4K).But for *buffer operations like memcpy,\nif the memory area size(n) which being assigned to buffer is larger\nthan 4K (log-\u003epage_size(64K) or bytes(64K-page_off)), it will cause\nan out of boundary error.\n Call trace:\n  [...]\n  kasan_report+0x44/0x130\n  check_memory_region+0xf8/0x1a0\n  memcpy+0xc8/0x100\n  ntfs_read_run_nb+0x20c/0x460\n  read_log_page+0xd0/0x1f4\n  log_read_rst+0x110/0x75c\n  log_replay+0x1e8/0x4aa0\n  ntfs_loadlog_and_replay+0x290/0x2d0\n  ntfs_fill_super+0x508/0xec0\n  get_tree_bdev+0x1fc/0x34c\n  [...]\n\nFix this by setting variable r_page to NULL in log_read_rst."
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        "dateUpdated": "2026-01-02T15:05:05.599Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/ecfbd57cf9c5ca225184ae266ce44ae473792132"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50869",
    "datePublished": "2025-12-30T12:15:39.879Z",
    "dateReserved": "2025-12-30T12:06:07.136Z",
    "dateUpdated": "2026-01-02T15:05:05.599Z",
    "state": "PUBLISHED"
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  }
}


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