CVE-2025-40129
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0653028e8f1c97fec30710813a001ad8a2ec34f4 < 81cec07d303186d0d8c623ef8b5ecd3b81e94cf6 | affected |
| Linux | Linux | 0653028e8f1c97fec30710813a001ad8a2ec34f4 < affc03d44921f493deaae1d33151e3067a6f9f8f | affected |
| Linux | Linux | 0653028e8f1c97fec30710813a001ad8a2ec34f4 < ab9a70cd2386a0d70c164b0905dd66bc9af52e77 | affected |
| Linux | Linux | 0653028e8f1c97fec30710813a001ad8a2ec34f4 < 6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42 | affected |
| Linux | Linux | 6.3 | affected |
| Linux | Linux | 0 < 6.3 | unaffected |
| Linux | Linux | 6.6.112 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.53 <= 6.12.* | unaffected |
| Linux | Linux | 6.17.3 <= 6.17.* | unaffected |
| Linux | Linux | 6.18 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/81cec07d303186d0d8c623ef8b5ecd3b81e94cf6
- https://git.kernel.org/stable/c/affc03d44921f493deaae1d33151e3067a6f9f8f
- https://git.kernel.org/stable/c/ab9a70cd2386a0d70c164b0905dd66bc9af52e77
- https://git.kernel.org/stable/c/6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42
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