CVE-2026-43093
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)
xsk: tighten UMEM headroom validation to account for tailroom and min frame
In the Linux kernel, the following vulnerability has been resolved: xsk: tighten UMEM headroom validation to account for tailroom and min frame The current headroom validation in xdp_umem_reg() could leave us with insufficient space dedicated to even receive minimum-sized ethernet frame. Furthermore if multi-buffer would come to play then skb_shared_info stored at the end of XSK frame would be corrupted. HW typically works with 128-aligned sizes so let us provide this value as bare minimum. Multi-buffer setting is known later in the configuration process so besides accounting for 128 bytes, let us also take care of tailroom space upfront.
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) |
|---|---|---|---|---|---|
| 99e3a236dd43d06c65af0a2ef9cb44306aef6e02 | affected | git | 5f123bc278bf4e3283d8606321bebbfd299f4384 | Unavailable | None listed |
| 99e3a236dd43d06c65af0a2ef9cb44306aef6e02 | affected | git | 1a6051cd7e3e4c54ff3854a43b638b9292af5e67 | Unavailable | None listed |
| 99e3a236dd43d06c65af0a2ef9cb44306aef6e02 | affected | git | 8769708add9eadeea8041a9761771bb715a87104 | Unavailable | None listed |
| 99e3a236dd43d06c65af0a2ef9cb44306aef6e02 | affected | git | a03975beb9f6af0d8ac051e30b2abeabe618414f | Unavailable | None listed |
| 99e3a236dd43d06c65af0a2ef9cb44306aef6e02 | affected | git | 0ec4d3f6e6934deb843b561ae048cd17218e5ad1 | Unavailable | None listed |
| 99e3a236dd43d06c65af0a2ef9cb44306aef6e02 | affected | git | 9ea6ba4f3195dcba6e8b3e7b2e748593b7cafb12 | Unavailable | None listed |
| 99e3a236dd43d06c65af0a2ef9cb44306aef6e02 | affected | git | 6523bc1b40e69301f24c14338b762af4739d6d39 | Unavailable | None listed |
| 99e3a236dd43d06c65af0a2ef9cb44306aef6e02 | affected | git | a315e022a72d95ef5f1d4e58e903cb492b0ad931 | Unavailable | None listed |
| ad8fb61c184fe0f8d1e0b5b954d010fb9f94a6ee | affected | git | Unavailable | Unavailable | None listed |
| 25c9cdef57488578da21d99eb614b97ffcf6e59f | affected | git | Unavailable | Unavailable | None listed |
| 98d3c852e63b49129515dd18c875999efaf8530a | affected | git | Unavailable | Unavailable | None listed |
| 4.19.118 | affected | semver | 4.20 | Unavailable | None listed |
| 5.4.35 | affected | semver | 5.5 | Unavailable | None listed |
| 5.6.7 | 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 |
| 5.10.258 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.209 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.175 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.136 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.83 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.24 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.14 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |