Answer in brief
CVE-2025-21975 records a Medium severity (CVSS 5.5) vulnerability in net/mlx5: handle errors in mlx5_chains_create_table(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=39ac237ce00968545e7298faa9e07ecb7e440fb5 <15bdd93728369b2c8942a8e5d549d4b5dc04a2d9 || >=39ac237ce00968545e7298faa9e07ecb7e440fb5 <29c419c64e9b396baeda1d8713d2aa3ba7c0acf6 || >=39ac237ce00968545e7298faa9e07ecb7e440fb5 <1598307c914ba3d2642a2b03d1ff11efbdb7c6c2 || >=39ac237ce00968545e7298faa9e07ecb7e440fb5 <637105ef0d46fe5beac15aceb431da3ec832bb00 || >=39ac237ce00968545e7298faa9e07ecb7e440fb5 <1d34296409a519b4027750e3e82d9e19553a7398 || >=39ac237ce00968545e7298faa9e07ecb7e440fb5 <093b4aaec97ec048623e3fe1e516fc45a954d412 || >=39ac237ce00968545e7298faa9e07ecb7e440fb5 <eab0396353be1c778eba1c0b5180176f04dd21ce | 15bdd93728369b2c8942a8e5d549d4b5dc04a2d9, 29c419c64e9b396baeda1d8713d2aa3ba7c0acf6, 1598307c914ba3d2642a2b03d1ff11efbdb7c6c2, 637105ef0d46fe5beac15aceb431da3ec832bb00, 1d34296409a519b4027750e3e82d9e19553a7398, 093b4aaec97ec048623e3fe1e516fc45a954d412, eab0396353be1c778eba1c0b5180176f04dd21ce |
| Linux/Linuxgeneric | 5.6 | Not reported |
Published upstream
Apr 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.