xen/pvcalls-back: fix double frees with pvcalls_new_active_socket()

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In the pvcalls_new_active_socket() function, most error paths call
pvcalls_back_release_active(fedata->dev, fedata, map) which calls
sock_release() on "sock".  The bug is that the caller also frees sock.

Fix this by making every error path in pvcalls_new_active_socket()
release the sock, and don't free it in the caller.

Fixes: 5db4d286a8 ("xen/pvcalls: implement connect command")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/e5f98dc2-0305-491f-a860-71bbd1398a2f@kili.mountain
Signed-off-by: Juergen Gross <jgross@suse.com>

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Dan Carpenter 2023-05-03 18:11:35 +03:00 • committed by Juergen Gross

parent b6ebaa8100

commit 8fafac202d

1 changed files with 4 additions and 5 deletions

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drivers/xen/pvcalls-back.c

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