CVE-2026-80846
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)
xfrm: drop ESP-in-TCP packets with no ingress device
In the Linux kernel, the following vulnerability has been resolved: xfrm: drop ESP-in-TCP packets with no ingress device ESP-in-TCP receives records through the TCP strparser. handle_esp() restores skb->dev from the saved skb_iif before passing the packet into the XFRM input path. Queued TCP data can be processed after the original ingress device has been removed, for example during veth or net namespace teardown. In that case dev_get_by_index_rcu() returns NULL. The XFRM IPv4 and IPv6 input paths both expect skb->dev to be valid while building the route lookup, so queued ESP-in-TCP data can dereference a NULL device. Drop the packet if the saved ingress device can no longer be resolved. Such a packet can no longer be routed through the normal XFRM receive path, and this preserves the existing behaviour for packets whose ingress device still exists.
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) |
|---|---|---|---|---|---|
| e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 | affected | git | 239d0f71af09dc2029fd4d730cb24b8c83aaa43a | Unavailable | None listed |
| e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 | affected | git | f00235f9d12301183d61f75fbe4105506f3e5140 | Unavailable | None listed |
| e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 | affected | git | 6af5cdb03819a5ce6e945992635c6c5e91045367 | Unavailable | None listed |
| e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 | affected | git | 2dd1609cadff46c4b20ce53b91ab9cce1380456a | Unavailable | None listed |
| e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 | affected | git | c296d25efbc840be24de83f56d43bc47e714ace9 | Unavailable | None listed |
| e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 | affected | git | 328e40aa774b446969c69b654c52a051a95af8a1 | Unavailable | None listed |
| e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 | affected | git | 7911e0236616487b89db6bd3ba3f408abd10eb23 | Unavailable | None listed |
| e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 | affected | git | 943d95233b8b4a88994e244fcf466f8c403d63f1 | Unavailable | None listed |
| e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 | affected | git | e1d7c5ac1c246ce5775f604515de0a59fbf2116e | 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) |
|---|---|---|---|---|---|
| 5.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.6 | Unavailable | None listed |
| 5.10.269 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.220 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.187 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.156 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.108 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.49 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.13 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2.3 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |