tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()

tpm2_read_public() calls tpm_buf_init() but fails to call
tpm_buf_destroy() on two exit paths, leaking a page allocation:

1. When name_size() returns an error (unrecognized hash algorithm),
   the function returns directly without destroying the buffer.

2. On the success path, the buffer is never destroyed before
   returning.

All other error paths in the function correctly call
tpm_buf_destroy() before returning.

Fix both by adding the missing tpm_buf_destroy() calls.

Cc: stable@vger.kernel.org # v6.19+
Fixes: bda1cbf73c6e ("tpm2-sessions: Fix tpm2_read_public range checks")
Signed-off-by: Gunnar Kudrjavets <gunnarku@amazon.com>
Reviewed-by: Justinien Bouron <jbouron@amazon.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

0 files changed, 0 insertions, 0 deletions