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CVE-2025-40129

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CVE-2025-40129

Published: Nov 12, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix null pointer dereference on zero-length checksum In xdr_stream_decode_opaque_auth(), zero-length checksum.len causes checksum.data to be set to NULL. This triggers a NPD when accessing checksum.data in gss_krb5_verify_mic_v2(). This patch ensures that the value of checksum.len is not less than XDR_UNIT.

VendorProductVersions

Linux

Linux

affected
0653028e8f1c97fec30710813a001ad8a2ec34f4 - < 81cec07d303186d0d8c623ef8b5ecd3b81e94cf6
affected
0653028e8f1c97fec30710813a001ad8a2ec34f4 - < affc03d44921f493deaae1d33151e3067a6f9f8f
affected
0653028e8f1c97fec30710813a001ad8a2ec34f4 - < ab9a70cd2386a0d70c164b0905dd66bc9af52e77
affected
0653028e8f1c97fec30710813a001ad8a2ec34f4 - < 6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42

Linux

Linux

affected
6.3
unaffected
0 - < 6.3
unaffected
6.6.112 - <= 6.6.*
unaffected
6.12.53 - <= 6.12.*
unaffected
6.17.3 - <= 6.17.*

+1 more versions

References

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