CVE-2026-90063
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)
virtio-net: Ensure that TCP packets don't overflow gso_segs
In the Linux kernel, the following vulnerability has been resolved: virtio-net: Ensure that TCP packets don't overflow gso_segs The user can specify any gso_size in a packet crafted with an AF_PACKET PACKET_VNET_HDR socket, even smaller than TCP_MIN_GSO_SIZE = 8. At the same time, GSO_MAX_SIZE = 8 * GSO_MAX_SEGS = 8 * 65535. When the user crafts a packet with gso_size < 8, there is a risk for partial GSO to overflow the 16-bit gso_segs field when dividing the SKB length by gso_size. Adjust gso_size of TCP packets to be at least TCP_MIN_GSO_SIZE = 8. Keep gso_size of UDP GSO packets, as gso_size=1 is valid and explicitly tested at tools/testing/selftests/net/tun.c:649.
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) |
|---|---|---|---|---|---|
| 7c6d2ecbda83150b2036a2b36b21381ad4667762 | affected | git | d3d111fe809773edbb4ae121e36253b7d683509a | Unavailable | None listed |
| 7c6d2ecbda83150b2036a2b36b21381ad4667762 | affected | git | 8f6667a081887c2b59c6f3dd86c1789ada563762 | Unavailable | None listed |
| 7c6d2ecbda83150b2036a2b36b21381ad4667762 | affected | git | 339f47ae04dcc6b5a730dd6bc70dddc8937c3260 | Unavailable | None listed |
| 7c6d2ecbda83150b2036a2b36b21381ad4667762 | affected | git | 29bd12c7c5f9d6cf855b87bace18f71e9607f9e8 | Unavailable | None listed |
| 7c6d2ecbda83150b2036a2b36b21381ad4667762 | affected | git | 0e5ed3b98d1d8d251acfdccfeaa607453ad12954 | Unavailable | None listed |
| 7c6d2ecbda83150b2036a2b36b21381ad4667762 | affected | git | 75c271c48f483af678e514734e10b2452410e08c | Unavailable | None listed |
| 7c6d2ecbda83150b2036a2b36b21381ad4667762 | affected | git | c27c449d455aafd9018a3cbab150f1c42c87923f | Unavailable | None listed |
| bfbaf151efe491e30697e21c8b7ae1b615480873 | affected | git | Unavailable | Unavailable | None listed |
| 6c83456601e65a6dd371ddf595510183d198e9b1 | affected | git | Unavailable | Unavailable | None listed |
| b3ebd9830c6026c98f03f7047c9d608573773f13 | affected | git | Unavailable | Unavailable | None listed |
| b96fb681ca789629b8ba3da99ca3b2e6fa807f0a | affected | git | Unavailable | Unavailable | None listed |
| 4.14.187 | affected | semver | 4.15 | Unavailable | None listed |
| 4.19.131 | affected | semver | 4.20 | Unavailable | None listed |
| 5.4.46 | affected | semver | 5.5 | Unavailable | None listed |
| 5.6.18 | affected | semver | 5.7 | 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) |
|---|---|---|---|---|---|
| 5.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.7 | Unavailable | 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 |