Thadeu Lima de Souza Cascardo 59c55e73ea ask-password: prevent buffer overrow when reading from keyring
When we read from keyring, a temporary buffer is allocated in order to
determine the size needed for the entire data. However, when zeroing that area,
we use the data size returned by the read instead of the lesser size allocate
for the buffer.

That will cause memory corruption that causes systemd-cryptsetup to crash
either when a single large password is used or when multiple passwords have
already been pushed to the keyring.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
2019-05-15 10:49:46 +02:00
2018-06-14 13:03:20 +02:00
2019-04-12 08:30:31 +02:00
2019-04-12 08:30:31 +02:00
2018-12-10 03:07:17 +09:00
2019-04-02 17:31:00 +02:00
2019-04-12 08:30:31 +02:00
2016-10-06 11:53:58 -04:00
2019-04-29 16:47:18 +02:00
2019-05-09 14:26:42 -04:00

systemd - System and Service Manager

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