CVE-2026-74473
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)
vxlan: use pskb_network_may_pull() in route_shortcircuit()
In the Linux kernel, the following vulnerability has been resolved: vxlan: use pskb_network_may_pull() in route_shortcircuit() route_shortcircuit() currently calls pskb_may_pull(skb, sizeof(struct iphdr)) (or ipv6hdr), which checks if bytes are available starting from skb->data. However, in vxlan_xmit(), skb->data points to the MAC header, so skb_network_offset(skb) is ETH_HLEN (14 bytes). Using pskb_may_pull(skb, 20) only checks 20 bytes from skb->data (which is 14 bytes MAC header + 6 bytes of IP header), leaving the rest of the IP header potentially un-pulled in non-linear frags. Subsequent dereferences of ip_hdr(skb)->daddr can read beyond the pulled linear buffer length. Fix this by using pskb_network_may_pull(), which adds skb_network_offset(skb) to the length check to ensure the full network header is present in the linear buffer.
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) |
|---|---|---|---|---|---|
| e4f67addf158f98f8197e08974966b18480dc751 | affected | git | c419af4924c1593500a40519730ed98575d04a3e | Unavailable | None listed |
| e4f67addf158f98f8197e08974966b18480dc751 | affected | git | 6bd0a3a1b5744166946f0c551a6665c3b46b05e4 | Unavailable | None listed |
| e4f67addf158f98f8197e08974966b18480dc751 | affected | git | 214ba43faf106cb06cd3dd30999c5c809c868b53 | Unavailable | None listed |
| e4f67addf158f98f8197e08974966b18480dc751 | affected | git | 42887be7c4cf283cce02cd0fb6411221167c8b6c | Unavailable | None listed |
| e4f67addf158f98f8197e08974966b18480dc751 | affected | git | aa0d31376d574ac858a40078431a77127bf04ee4 | Unavailable | None listed |
| e4f67addf158f98f8197e08974966b18480dc751 | affected | git | ee799977d7941dbfb11049e17edd9eaf4f8820f7 | Unavailable | None listed |
| e4f67addf158f98f8197e08974966b18480dc751 | affected | git | 4f3f96e771a20263635bb5e1307c112d613b4bbd | Unavailable | None listed |
| e4f67addf158f98f8197e08974966b18480dc751 | affected | git | 26bb2dd0a8839617e2c79ffbbe1923f8e4bab9fb | 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) |
|---|---|---|---|---|---|
| 3.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.8 | Unavailable | None listed |
| 5.10.265 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.216 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.151 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.103 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.44 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.8 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |