CVEvulnerability
CVE-2026-72296
9.1 CRITICAL
Official page ↗
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
net: ife: require ETH_HLEN to be pullable in ife_decode()
ife decode may return after making only the outer IFE header and
metadata pullable. The caller then passes the decapsulated packet to
eth_type_trans(), which expects the inner Ethernet header to be
accessible from the linear data area.
With a malformed IFE frame, the inner Ethernet header may still be
shorter than ETH_HLEN in the linear area, which can lead to a crash in
the original code.
Fix this by extending the pull check in ife_decode() so that the inner
Ethernet header is also guaranteed to be pullable before returning.
References
- https://git.kernel.org/stable/c/1cb42ec10294a55380e52e674b3df2b962648242 git.kernel.org
- https://git.kernel.org/stable/c/5526d1997aea6c9bd865ca4d4894b52e799d735c git.kernel.org
- https://git.kernel.org/stable/c/70013f9163bef7fbd9fa62f81cf91b2a7ba66163 git.kernel.org
- https://git.kernel.org/stable/c/8c8818e52fddb247ff3214622401a4de6ff8482e git.kernel.org
- https://git.kernel.org/stable/c/9406f6012b7343661efb516a11c62d4db2b62f75 git.kernel.org
- https://git.kernel.org/stable/c/9433578bff9c100c466a6354574892e55293cb8f git.kernel.org
- https://git.kernel.org/stable/c/b69ad768cd4a2ef4e07c18492ae85438ed17c7cb git.kernel.org
- https://git.kernel.org/stable/c/be272e159dfe1207b67332ad6e17adcf59b4ea4b git.kernel.org