On Thu, Jan 08, 2026 at 02:31:59PM +0200, Jarkko Sakkinen wrote: > [ Upstream commit 6e9722e9a7bfe1bbad649937c811076acf86e1fd ] > > 'name_size' does not have any range checks, and it just directly indexes > with TPM_ALG_ID, which could lead into memory corruption at worst. > > Address the issue by only processing known values and returning -EINVAL for > unrecognized values. > > Make also 'tpm_buf_append_name' and 'tpm_buf_fill_hmac_session' fallible so > that errors are detected before causing any spurious TPM traffic. > > End also the authorization session on failure in both of the functions, as > the session state would be then by definition corrupted. > > Cc: [email protected] # v6.10+ > Fixes: 1085b8276bb4 ("tpm: Add the rest of the session HMAC API") > Reviewed-by: Jonathan McDowell <[email protected]> > Signed-off-by: Jarkko Sakkinen <[email protected]> > ---
This is for v6.12. BR, Jarkko
