Description: net: hsr: fix memory leak in hsr_dev_finalize()
References:
Notes:
 bwh> Apparently introduced in 3.17 by commit c5a759117210 "net/hsr: Use
 bwh> list_head (and rcu) instead of array for slave devices."
Bugs:
upstream: released (5.1-rc1) [6caabe7f197d3466d238f70915d65301f1716626]
4.19-upstream-stable: released (4.19.30) [996ee1aca7def6125e9d96f58151799d44082cfc]
4.9-upstream-stable: released (4.9.164) [a582b20fd743237ce145b45aacf9f6c24962029a]
3.16-upstream-stable: N/A "Vulnerability introduced later"
sid: released (4.19.37-1)
4.19-buster-security: N/A "Fixed before branching point"
4.9-stretch-security: released (4.9.168-1)
3.16-jessie-security: N/A "Vulnerability introduced later"