CVE-2025-21975net/mlx5: handle errors in mlx5_chains_create_table()
- 5.5MediumCVSS base score
- 0.21%Exploitation in 30 daysEPSS · top 89% 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: net/mlx5: handle errors in mlx5_chains_create_table() In mlx5_chains_create_table(), the return value of mlx5_get_fdb_sub_ns() and mlx5_get_flow_namespace() must be checked to prevent NULL pointer dereferences. If either function fails, the function should log error message with mlx5_core_warn() and return error pointer.
Timeline
ID reserved
By Linux
- 3 months later
· 3 months later
Published
- 19 months later
· 19 months 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 |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 39ac237ce00968545e7298faa9e07ecb7e440fb5 – < 15bdd93728369b2c8942a8e5d549d4b5dc04a2d9
- affected 39ac237ce00968545e7298faa9e07ecb7e440fb5 – < 29c419c64e9b396baeda1d8713d2aa3ba7c0acf6
- affected 39ac237ce00968545e7298faa9e07ecb7e440fb5 – < 1598307c914ba3d2642a2b03d1ff11efbdb7c6c2
- affected 39ac237ce00968545e7298faa9e07ecb7e440fb5 – < 637105ef0d46fe5beac15aceb431da3ec832bb00
- affected 39ac237ce00968545e7298faa9e07ecb7e440fb5 – < 1d34296409a519b4027750e3e82d9e19553a7398
- affected 39ac237ce00968545e7298faa9e07ecb7e440fb5 – < 093b4aaec97ec048623e3fe1e516fc45a954d412
- affected 39ac237ce00968545e7298faa9e07ecb7e440fb5 – < eab0396353be1c778eba1c0b5180176f04dd21ce
- affected 5.6
- unaffected < 5.6
- unaffected 5.10.236 – ≤ 5.10.*
- unaffected 5.15.180 – ≤ 5.15.*
- unaffected 6.1.132 – ≤ 6.1.*
- unaffected 6.6.84 – ≤ 6.6.*
- unaffected 6.12.20 – ≤ 6.12.*
- unaffected 6.13.8 – ≤ 6.13.*
- unaffected 6.14 – ≤ *
References
References9
- https://git.kernel.org/stable/c/15bdd93728369b2c8942a8e5d549d4b5dc04a2d9 (opens in a new tab)
- https://git.kernel.org/stable/c/29c419c64e9b396baeda1d8713d2aa3ba7c0acf6 (opens in a new tab)
- https://git.kernel.org/stable/c/1598307c914ba3d2642a2b03d1ff11efbdb7c6c2 (opens in a new tab)
- https://git.kernel.org/stable/c/637105ef0d46fe5beac15aceb431da3ec832bb00 (opens in a new tab)
- https://git.kernel.org/stable/c/1d34296409a519b4027750e3e82d9e19553a7398 (opens in a new tab)
- https://git.kernel.org/stable/c/093b4aaec97ec048623e3fe1e516fc45a954d412 (opens in a new tab)
- https://git.kernel.org/stable/c/eab0396353be1c778eba1c0b5180176f04dd21ce (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html (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-2025-9345 (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-2025-21975)Record last updated .