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| author | Jakub Kicinski <[email protected]> | 2021-12-10 14:38:30 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2021-12-10 14:38:30 +0000 |
| commit | 3d20408dff9c0885591c8e1d31a67e9183f0cc8a (patch) | |
| tree | 509db89a9091f6bbdd5dd5bafb19ed3298ddb494 /tools/lib/bpf/bpf_prog_linfo.c | |
| parent | sh_eth: Use dev_err_probe() helper (diff) | |
| parent | ppp: add netns refcount tracker (diff) | |
| download | kernel-3d20408dff9c0885591c8e1d31a67e9183f0cc8a.tar.gz kernel-3d20408dff9c0885591c8e1d31a67e9183f0cc8a.zip | |
Merge branch 'net-netns-refcount-tracking-base-series'
Eric Dumazet says:
====================
net: netns refcount tracking, base series
We have 100+ syzbot reports about netns being dismantled too soon,
still unresolved as of today.
We think a missing get_net() or an extra put_net() is the root cause.
In order to find the bug(s), and be able to spot future ones,
this patch adds CONFIG_NET_NS_REFCNT_TRACKER and new helpers
to precisely pair all put_net() with corresponding get_net().
To use these helpers, each data structure owning a refcount
should also use a "netns_tracker" to pair the get() and put().
Small sections of codes where the get()/put() are in sight
do not need to have a tracker, because they are short lived,
but in theory it is also possible to declare an on-stack tracker.
v2: Include core networking patches only.
====================
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'tools/lib/bpf/bpf_prog_linfo.c')
0 files changed, 0 insertions, 0 deletions