- 9.1CriticalCVSS base score
- 0.70%Exploitation in 30 daysEPSS · top 46% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate ef->size covers the record's name and value When an EA record has a non-zero ef->size, ntfs_read_ea() only checks that the record fits in the remaining buffer (ea_size > bytes), not that ef->size is large enough to hold the record's own name_len + 1 + elength. A crafted image can pass validation with, e.g., ef->size = 24 but elength = 0xffff. ntfs_get_ea() then trusts elength and copies it out of the undersized record, reading past the kmalloc(info->size) allocation and leaking heap memory to userspace via getxattr(): BUG: KASAN: slab-out-of-bounds in ntfs_get_ea (fs/ntfs3/xattr.c:302) Read of size 65535 at addr ffff888100794550 by task exploit __asan_memcpy (mm/kasan/shadow.c:105) ntfs_get_ea (fs/ntfs3/xattr.c:302) ntfs_getxattr (fs/ntfs3/xattr.c:848) __vfs_getxattr (fs/xattr.c:441) vfs_getxattr (fs/xattr.c:474) do_getxattr (fs/xattr.c:800) path_getxattrat (fs/xattr.c:868) do_syscall_64 (arch/x86/entry/syscall_64.c:94) The buggy address is located 80 bytes inside of allocated 84-byte region in cache kmalloc-96 Compute the size the record needs and require ef->size to cover it.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 33 days later
· 33 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| NVDNVD · Received | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.70% · top 46% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.
Affected products
- affected 333feb7ba84f69f9b423422417aaac54fd9e7c84 – < b27e68ad818a4ca2cef8f35f97e75d756714c818
- affected 000a9a72efa4a9df289bab9c9e8ba1639c72e0d6 – < 28a924c7e67e6d71abeb04860b61166fecb027fc
- affected 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b – < d585ed08308909c7e6fefb4e8a258aeb29b19ff9
- affected 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b – < 077df8464cf24f8ffc82fb6efec2ae600686e699
- affected 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b – < aab1880058ac767d3ea9388a9a7221c776c22c44
- affected 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b – < c8a109c9e23a2c7fd548473dde728b2cb8188146
- affected 0e8235d28f3a0e9eda9f02ff67ee566d5f42b66b – < c22f91d82cb9a29d22bdffdce6c803467984ad0c
- affected 5.15.121 – < 5.15.221
- affected 6.1.40 – < 6.1.188
- affected 6.2
- unaffected < 6.2
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References7
- https://git.kernel.org/stable/c/b27e68ad818a4ca2cef8f35f97e75d756714c818 (opens in a new tab)
- https://git.kernel.org/stable/c/28a924c7e67e6d71abeb04860b61166fecb027fc (opens in a new tab)
- https://git.kernel.org/stable/c/d585ed08308909c7e6fefb4e8a258aeb29b19ff9 (opens in a new tab)
- https://git.kernel.org/stable/c/077df8464cf24f8ffc82fb6efec2ae600686e699 (opens in a new tab)
- https://git.kernel.org/stable/c/aab1880058ac767d3ea9388a9a7221c776c22c44 (opens in a new tab)
- https://git.kernel.org/stable/c/c8a109c9e23a2c7fd548473dde728b2cb8188146 (opens in a new tab)
- https://git.kernel.org/stable/c/c22f91d82cb9a29d22bdffdce6c803467984ad0c (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)
- EUVD EUVD-2026-80300 (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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-89779)Record last updated .