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CVE

CVE-2026-72296

net: ife: require ETH_HLEN to be pullable in ife_decode()
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CVE

CVE-2026-72296

net: ife: require ETH_HLEN to be pullable in ife_decode()

In the Linux kernel, the following vulnerability has been resolved:

net: ife: require ETHHLEN to be pullable in ifedecode()

ife decode may return after making only the outer IFE header and

metadata pullable. The caller then passes the decapsulated packet to

ethtypetrans(), 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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
C
H
U
-

Related Resources

No items found.

References

https://git.kernel.org/stable/c/1cb42ec10294a55380e52e674b3df2b962648242, https://git.kernel.org/stable/c/5526d1997aea6c9bd865ca4d4894b52e799d735c, https://git.kernel.org/stable/c/70013f9163bef7fbd9fa62f81cf91b2a7ba66163, https://git.kernel.org/stable/c/8c8818e52fddb247ff3214622401a4de6ff8482e, https://git.kernel.org/stable/c/9406f6012b7343661efb516a11c62d4db2b62f75, https://git.kernel.org/stable/c/9433578bff9c100c466a6354574892e55293cb8f, https://git.kernel.org/stable/c/b69ad768cd4a2ef4e07c18492ae85438ed17c7cb, https://git.kernel.org/stable/c/be272e159dfe1207b67332ad6e17adcf59b4ea4b, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72296.json, https://nvd.nist.gov/vuln/detail/CVE-2026-72296, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Severity

9.1

CVSS Score
0
10

Basic Information

Base CVSS
9.1
EPSS Probability
0.00714%
EPSS Percentile
0.51005%
Introduced Version
ef6980b6becb1afd9d82a4f043749a10ae81bf14,4.6.0,5.11.0,5.16.0,6.2.0,6.7.0,6.13.0,6.19.0,0
Fix Available
9406f6012b7343661efb516a11c62d4db2b62f75,5.10.261,5.15.212,6.1.178,6.6.145,6.12.97,6.18.40,7.1.5,6.1.180-1,5.10.262-1,6.12.100-1,0:5.15.213-150.251.amzn2,0:1.0-0.amzn2

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