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| author | Kuniyuki Iwashima <[email protected]> | 2022-07-11 17:15:19 -0700 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2022-07-13 12:56:48 +0100 |
| commit | 7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18 (patch) | |
| tree | 64ff9ebba3025277b0b6f29b75143aa8ce0c5148 /lib/netdev-notifier-error-inject.c | |
| parent | 22b9c41a3fb8ef4624bcda312665937d2ba98aa7 (diff) | |
sysctl: Fix data-races in proc_dou8vec_minmax().
A sysctl variable is accessed concurrently, and there is always a chance
of data-race. So, all readers and writers need some basic protection to
avoid load/store-tearing.
This patch changes proc_dou8vec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,
proc_dou8vec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.
Fixes: cb9444130662 ("sysctl: add proc_dou8vec_minmax()")
Signed-off-by: Kuniyuki Iwashima <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'lib/netdev-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions