inet6: fix IndexError when dissecting IPv6 with truncated nh=43 payload - #5214
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #5214 +/- ##
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- Coverage 81.14% 81.14% -0.01%
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Files 393 393
Lines 98316 98316
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- Hits 79783 79776 -7
- Misses 18533 18540 +7
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When self.nh == 43, default_payload_class accessed p[2] without verifying that len(p) > 2, causing an IndexError for payloads shorter than 3 bytes. Add length check and regression test. Closes secdev#5206 Reopens secdev#5207 AI-Assisted: no
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Reopens #5207 (reverted in #5210).
When
self.nh == 43,default_payload_classaccessedp[2]without verifyinglen(p) > 2, causing anIndexErrorfor payloads shorter than 3 bytes.Tests on
masterare now passing, and the commit includes the requiredAI-Assistedtrailer.Closes #5206