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Only allow a SCTP-AUTH shared key to be updated by the application

Description

Only allow a SCTP-AUTH shared key to be updated by the application
if it is not deactivated and not used.
This avoids a use-after-free problem.

Reported by: da_cheng_shao@yeah.net
MFC after: 3 days

Details

Provenance
tuexenAuthored on
Parents
rS352437: vfs: fix braino resulting in NULL pointer deref in r352424
Branches
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Tags
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