CVE-2026-90114
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: bridge: Reject descending VLAN tunnel ranges
In the Linux kernel, the following vulnerability has been resolved: net: bridge: Reject descending VLAN tunnel ranges A pair of descending VLAN and tunnel IDs can pass the tunnel range span check. The VLAN subtraction produces a negative int, which is converted to unsigned when compared with the u32 tunnel ID subtraction. It can therefore equal the wrapped tunnel ID delta. The range loop then performs no iterations. Since the batched notification handling added a post-loop error check, this leaves err uninitialized and makes the request's return value unpredictable. Reject descending VLAN ranges before comparing the spans. Valid ascending and single-entry ranges remain unchanged, while malformed descending ranges consistently return -EINVAL. This issue was found by a static analysis checker and confirmed by manual source review.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 94339443686b36d3223bc032b7947267474e2679 | affected | git | 1181f6bad009408a259bab6aaf0681f11b487972 | Unavailable | None listed |
| 94339443686b36d3223bc032b7947267474e2679 | affected | git | 5a8e0e3a18b5e3172343b8479c5d04187f5b4795 | Unavailable | None listed |
| 94339443686b36d3223bc032b7947267474e2679 | affected | git | 0874a6d5275091429ec4c675c54c53a8776665ae | Unavailable | None listed |
| 94339443686b36d3223bc032b7947267474e2679 | affected | git | 4b0f5b25f114651f03058395b490626c4444875e | Unavailable | None listed |
| 94339443686b36d3223bc032b7947267474e2679 | affected | git | bd741b819ff1c239d26cc5b0f0e6b1fd4e67ed17 | Unavailable | None listed |
| 94339443686b36d3223bc032b7947267474e2679 | affected | git | c0444d7499f113d6b7803ef0175591464e17525e | Unavailable | None listed |
| 94339443686b36d3223bc032b7947267474e2679 | affected | git | 434849b21ef56b09d16e6366b2a230002f363e45 | Unavailable | None listed |
| 94339443686b36d3223bc032b7947267474e2679 | affected | git | b74a072d8fb71d3c9ffba4a17d5943e63266fb38 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.9 | Unavailable | None listed |
| 5.10.270 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.52 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |