[countersyncd]: align multi-message netlink parsing#212
Merged
Pterosaur merged 3 commits intoAzure:202412from Mar 13, 2026
Merged
[countersyncd]: align multi-message netlink parsing#212Pterosaur merged 3 commits intoAzure:202412from
Pterosaur merged 3 commits intoAzure:202412from
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Signed-off-by: Ze Gan <ganze718@gmail.com> (cherry picked from commit 6917adbf46b30aded9adc7cc1809dfd3728b5e8c)
Signed-off-by: Ze Gan <ganze718@gmail.com> (cherry picked from commit e3bd603ff5c497808ed63ed2007c99cf5ed1bc86)
Signed-off-by: Ze Gan <ganze718@gmail.com> (cherry picked from commit 2217d8578aacd8bd06b932040565f16b21892a48)
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What I did
Backported sonic-net/sonic-swss#4317 to the
202412branch.This preserves the aligned multi-message netlink parsing fixes in
countersyncd, including the follow-up bounds tightening and helper documentation update.Why I did it
The parser needs to align netlink message traversal correctly to avoid malformed multi-message parsing and out-of-bounds behavior.
How I verified it
Backport was validated as part of the combined 202412
countersyncdstack verification.A merged 202412 build containing the backports of public PRs 4316/4317/4318/4319 was built and deployed to DUT
str4-sn5640-2, then the full HFT regression was run:high_frequency_telemetry/test_high_frequency_telemetry.pytests=14,failures=0,errors=0,skipped=720241212.54Details if related
Source public PR: sonic-net/sonic-swss#4317