CVE-2026-72463
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: Fix dev use-after-free in xfrm async resumption
In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix dev use-after-free in xfrm async resumption xfrm async resumption hold skb->dev refcnt until after transport_finish. However, xfrm_rcv_cb may modify skb->dev to tunnel dev without taking device reference, such as vti_rcv_cb. The subsequent async resumption will decrement the tunnel device's reference count, which lead to uaf of tunnel dev and refcnt leak of orig dev as below: unregister_netdevice: waiting for vti1 to become free. Usage count = -2 Stash the original skb->dev to fix refcnt imbalance. The new skb->dev set by xfrm_rcv_cb can race with device teardown. Extend rcu protection over xfrm_rcv_cb and transport_finish to prevent races.
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) |
|---|---|---|---|---|---|
| 4236c30b437b80f673b9e08c8fae38b8d471ac9e | affected | git | fed4d3195a31125566876952ce66113ec1eb9008 | Unavailable | None listed |
| 0f451b43c88bf2b9c038b414be580efee42e031b | affected | git | 1acd93259b6be269e26be5d71c224bccd1f8352f | Unavailable | None listed |
| 1c428b03840094410c5fb6a5db30640486bbbfcb | affected | git | 63a30015199912bd5055bead8001b1ae68a67cdb | Unavailable | None listed |
| 1c428b03840094410c5fb6a5db30640486bbbfcb | affected | git | 8045c0df98d4f14c54e5cb875f1c9c0ce89fe4ff | Unavailable | None listed |
| 94439cbe478b53f92223da9aae95fffb28623c3f | affected | git | Unavailable | Unavailable | None listed |
| 5002beda5cac69d522dc54da0d5d463ed9c963d2 | affected | git | Unavailable | Unavailable | None listed |
| 6.12.94 | affected | semver | 6.12.112 | Unavailable | None listed |
| 6.18.23 | affected | semver | 6.18.54 | Unavailable | None listed |
| 6.6.160 | affected | semver | 6.7 | Unavailable | None listed |
| 6.19.13 | affected | semver | 6.20 | 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) |
|---|---|---|---|---|---|
| 7.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 7.0 | Unavailable | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.54 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |