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Jarkko Sakkinen 8ceee72881 tpm: Cap the number of PCR banks

[ Upstream commit faf07e611d ]

tpm2_get_pcr_allocation() does not cap any upper limit for the number of
banks. Cap the limit to eight banks so that out of bounds values coming
from external I/O cause on only limited harm.

Cc: stable@vger.kernel.org # v5.10+
Fixes: bcfff8384f ("tpm: dynamically allocate the allocated_banks array")
Tested-by: Lai Yi <yi1.lai@linux.intel.com>
Reviewed-by: Jonathan McDowell <noodles@meta.com>
Reviewed-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@opinsys.com>
[ added backward-compatible define for TPM_MAX_DIGEST_SIZE to support older ima_init.c code still using that macro name ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2026-01-19 13:12:03 +01:00

agp

parisc: sba: Fix compile warning wrt list of SBA devices

2023-10-10 21:53:32 +02:00

hw_random

hwrng: ks-sa - fix division by zero in ks_sa_rng_init

2025-10-29 14:01:07 +01:00

ipmi

ipmi: Fix __scan_channels() failing to rescan channels

2026-01-19 13:11:45 +01:00

mwave

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