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| author | Jakub Kicinski <kuba@kernel.org> | 2026-10-06 16:23:11 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-10-06 16:23:12 -0700 |
| commit | 588003f74005bbe34cdb4a39f65312cd43cf6935 (patch) | |
| tree | d19cdf804c8281bc4c71285f469ef4475fef6e7e /tools/perf/scripts/python/task-analyzer.py | |
| parent | a463f55c791b96cfd12df8b10ea737d45c80bb18 (diff) | |
| parent | d3daa33c7af92e38f2274bbd2576f58bfbaf89e6 (diff) | |
| download | linux-588003f74005bbe34cdb4a39f65312cd43cf6935.tar.gz linux-588003f74005bbe34cdb4a39f65312cd43cf6935.zip | |
Merge branch 'ipv4-handle-nexthop-group-shrink-races'
Daehyeon Ko says:
====================
ipv4: handle nexthop group shrink races
fib_info_num_path() and fib_info_nhc() can observe different RCU
generations of a replaceable nexthop group. An indexed consumer can
therefore accept an index from a larger group and receive NULL after a
concurrent shrink.
Patch 1 is unchanged from v1. Patch 2 addresses the analogous
fib_dump_info_fnhe() race Ido identified. Auditing the remaining
accessor pairs found the same issue in the RCU-only hardware-flag
notification path, fixed by patch 3. Separate patches retain the
correct Fixes tag for each concurrency boundary.
====================
Link: https://patch.msgid.link/cover.1790915964.git.4ncienth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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