In the Linux kernel, the following vulnerability has been resolved:
net: correctly handle tunneled traffic on IPV6_CSUM GSO fallback
NETIF_F_IPV6_CSUM only advertises support for checksum offload of
packets without IPv6 extension headers. Packets with extension
headers must fall back onto software checksumming. Since TSO
depends on checksum offload, those must revert to GSO.
The below commit introduces that fallback. It always checks
network header length. For tunneled packets, the inner header length
must be checked instead. Extend the check accordingly.
A special case is tunneled packets without inner IP protocol. Such as
RFC 6951 SCTP in UDP. Those are not standard IPv6 followed by
transport header either, so also must revert to the software GSO path.
References
Configurations
Configuration 1 (hide)
|
History
06 May 2026, 18:48
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/2094a7cf91b71367b649f991aacc7b579f793d0b - Patch | |
| References | () https://git.kernel.org/stable/c/33670f780e0120c3dacda188c512bbffe0b6044c - Patch | |
| References | () https://git.kernel.org/stable/c/732fdeb2987c94b439d51f5cb9addddc2fc48c42 - Patch | |
| References | () https://git.kernel.org/stable/c/a98b78116a27e2a57b696b569b2cb431c95cf9b6 - Patch | |
| References | () https://git.kernel.org/stable/c/c4336a07eb6b2526dc2b62928b5104b41a7f81f5 - Patch | |
| References | () https://git.kernel.org/stable/c/ed71cf465c75f5688b07a35d373cd1d6b589c8ea - Patch | |
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc7:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.17:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* |
|
| CWE | NVD-CWE-noinfo |
03 May 2026, 07:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
01 May 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-01 15:16
Updated : 2026-05-06 18:48
NVD link : CVE-2026-43057
Mitre link : CVE-2026-43057
CVE.ORG link : CVE-2026-43057
JSON object : View
Products Affected
linux
- linux_kernel
CWE