sys/net/grnc/netreg: avoid freeing wild pointers #18951
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When freeing any stale pktsnips from stale messages in the mbox, make sure that the messages actually contains a pktsnip before freeing.
maribu
requested review from
miri64,
haukepetersen,
PeterKietzmann and
cgundogan
as code owners
benpicco
approved these changes
Nov 22, 2022
benpicco
added
Type: bug
aabadie
added
CI: ready for build
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Contribution description
When freeing any stale pktsnips from stale messages in the mbox, make sure that the messages actually contains a pktsnip before freeing.
Testing procedure
The test
tests/pkg_edhoc_cshould no longer crashIssues/PRs references
Split out of #18949