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bug: pcrlock predict uses sort order to predict, so addons need to load between uki (650-*) and uki .linux (660-*) #568

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Merged
bfjelds merged 1 commit into from
Mar 20, 2026
Merged

bug: pcrlock predict uses sort order to predict, so addons need to load between uki (650-*) and uki .linux (660-*) #568

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11 changes: 6 additions & 5 deletions crates/osutils/src/pcrlock.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -50,15 +50,16 @@ const BOOT_LOADER_CODE_SDBOOT_PCRLOCK_DIR: &str = "640-boot-loader-code-sdboot.p
/// into PCR 4,
const UKI_PCRLOCK_DIR: &str = "650-uki.pcrlock.d";

/// `/var/lib/pcrlock.d/655-uki-addons-<name>.pcrlock.d`, where `lock-pe` measures the UKI addons binaries, as recorded
/// into PCR 4. This needs to occur between 650-* and 660-* as the addons are loaded between the uki and the uki .linux
/// section.
const UKI_ADDONS_PCRLOCK_DIR_PREFIX: &str = "655-uki-addons-";
const UKI_ADDONS_PCRLOCK_DIR_SUFFIX: &str = ".pcrlock.d";

/// `/var/lib/pcrlock.d/660-boot-loader-code-uki.pcrlock.d`, where `lock-pe` measures the .linux
/// section of the UKI binary, as recorded into PCR 4 following Microsoft's Authenticode hash spec,
const BOOT_LOADER_CODE_UKI_PCRLOCK_DIR: &str = "660-boot-loader-code-uki.pcrlock.d";

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/// `/var/lib/pcrlock.d/670-uki-addons-<name>.pcrlock.d`, where `lock-pe` measures the UKI addons binaries, as recorded
/// into PCR 4.
const UKI_ADDONS_PCRLOCK_DIR_PREFIX: &str = "670-uki-addons-";
const UKI_ADDONS_PCRLOCK_DIR_SUFFIX: &str = ".pcrlock.d";

#[derive(Debug, Deserialize)]
struct PcrValue {
pcr: Pcr,
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