CVE-2026-46323
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: gro: don't merge zcopy skbs
In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skb_gro_receive() can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in particular the SKBFL_MANAGED_FRAG_REFS flag. When SKBFL_MANAGED_FRAG_REFS is set, the skb doesn't hold a reference on the pages in shinfo->frags. Appending those frags to another skb's frags without fixing up the page refcount can lead to UAF. When either the last skb in the GRO chain (the one we would append frags to) or the source skb is zerocopy, don't merge the skbs.
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) |
|---|---|---|---|---|---|
| 753f1ca4e1e50248a1b760c9774d6d6b354562cc | affected | git | 3c6cc9f2ca65b6dd61b1af75452dc0e1cd0aad8d | Unavailable | None listed |
| 753f1ca4e1e50248a1b760c9774d6d6b354562cc | affected | git | 1f9c828556416fbe3f49386708ce999fc4d4da06 | Unavailable | None listed |
| 753f1ca4e1e50248a1b760c9774d6d6b354562cc | affected | git | 479084ae0e1d9cb7929cb4298d35623de189f80a | Unavailable | None listed |
| 753f1ca4e1e50248a1b760c9774d6d6b354562cc | affected | git | e334cbf3388fd9334503a778a82d9e9f14dd2f71 | Unavailable | None listed |
| 753f1ca4e1e50248a1b760c9774d6d6b354562cc | affected | git | 44bea2032af0425e4ce6d26a8af0ede79db49ec1 | Unavailable | None listed |
| 753f1ca4e1e50248a1b760c9774d6d6b354562cc | affected | git | 4db79a322db8c97f7b73b8a347395ef4d685eb40 | 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) |
|---|---|---|---|---|---|
| 6.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.0 | Unavailable | None listed |
| 6.1.176 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.142 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.92 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.34 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.11 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |