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rxrpc: Fix use-after-free in rxrpc_put_local()
authorDavid Howells <dhowells@redhat.com>
Thu, 30 Jan 2020 21:50:35 +0000 (21:50 +0000)
committerDavid Howells <dhowells@redhat.com>
Thu, 30 Jan 2020 21:50:41 +0000 (21:50 +0000)
commitfac20b9e738523fc884ee3ea5be360a321cd8bad
treeae116a5a1ab3b27ee80d49fe7fea7134ebeaff94
parent9fbf082f569980ddd7cab348e0a118678db0e47e
rxrpc: Fix use-after-free in rxrpc_put_local()

Fix rxrpc_put_local() to not access local->debug_id after calling
atomic_dec_return() as, unless that returned n==0, we no longer have the
right to access the object.

Fixes: 06d9532fa6b3 ("rxrpc: Fix read-after-free in rxrpc_queue_local()")
Signed-off-by: David Howells <dhowells@redhat.com>
net/rxrpc/local_object.c