CVE-2026-31663
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: hold dev ref until after transport_finish NF_HOOK
In the Linux kernel, the following vulnerability has been resolved: xfrm: hold dev ref until after transport_finish NF_HOOK After async crypto completes, xfrm_input_resume() calls dev_put() immediately on re-entry before the skb reaches transport_finish. The skb->dev pointer is then used inside NF_HOOK and its okfn, which can race with device teardown. Remove the dev_put from the async resumption entry and instead drop the reference after the NF_HOOK call in transport_finish, using a saved device pointer since NF_HOOK may consume the skb. This covers NF_DROP, NF_QUEUE and NF_STOLEN paths that skip the okfn. For non-transport exits (decaps, gro, drop) and secondary async return points, release the reference inline when async is set.
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) |
|---|---|---|---|---|---|
| acf568ee859f098279eadf551612f103afdacb4e | affected | git | 94439cbe478b53f92223da9aae95fffb28623c3f | Unavailable | None listed |
| acf568ee859f098279eadf551612f103afdacb4e | affected | git | 4236c30b437b80f673b9e08c8fae38b8d471ac9e | Unavailable | None listed |
| acf568ee859f098279eadf551612f103afdacb4e | affected | git | 0f451b43c88bf2b9c038b414be580efee42e031b | Unavailable | None listed |
| acf568ee859f098279eadf551612f103afdacb4e | affected | git | 5002beda5cac69d522dc54da0d5d463ed9c963d2 | Unavailable | None listed |
| acf568ee859f098279eadf551612f103afdacb4e | affected | git | 1c428b03840094410c5fb6a5db30640486bbbfcb | Unavailable | None listed |
| 69895c5ea0ca2e8d7de1e6d36965d0ab9730787f | affected | git | Unavailable | Unavailable | None listed |
| 833760100588acfb267dac4d6a02ab9931237739 | affected | git | Unavailable | Unavailable | None listed |
| e095ecaec6d94aa2156cceb98a85d409b51190f3 | affected | git | Unavailable | Unavailable | None listed |
| 3.2.100 | affected | semver | 3.3 | Unavailable | None listed |
| 3.16.55 | affected | semver | 3.17 | Unavailable | None listed |
| 4.14.24 | affected | semver | 4.15 | 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) |
|---|---|---|---|---|---|
| 4.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.15 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.94 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.23 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.13 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |