wifi: iwlwifi: validate PNVM SKU TLV length

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iwl_pnvm_parse() reads an iwl_sku_id from an
IWL_UCODE_TLV_PNVM_SKU payload after only checking that the generic TLV
payload is present.

A short type-specific payload can therefore make the three data[] reads
extend beyond the TLV. Reject SKU TLVs shorter than the structure before
accessing it.

Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260715135916.24417-1-pengpeng@iscas.ac.cn
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>

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Pengpeng Hou 2026-07-15 21:57:50 +08:00 • committed by Miri Korenblit

parent 94280e6e0c

commit 7410e4548a

1 changed files with 6 additions and 0 deletions

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drivers/net/wireless/intel/iwlwifi/fw/pnvm.c

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