50b731f1b7
Derivative of Redox OS (https://www.redox-os.org) adding: - AMD GPU driver (amdgpu) via LinuxKPI compat layer - ext4 filesystem support (ext4d scheme daemon) - ACPI fixes for AMD bare metal (x2APIC, DMAR, IVRS, MCFG) - Custom branding (hostname, os-release, boot identity) Build system is full upstream Redox with RBOS overlay in local/. Patches for kernel, base, and relibc are symlinked from local/patches/ and protected from make clean/distclean. Custom recipes live in local/recipes/ with symlinks into the recipes/ search path. Build: make all CONFIG_NAME=redbear-full Sync: ./local/scripts/sync-upstream.sh
20 lines
708 B
Diff
20 lines
708 B
Diff
diff --git a/drivers/acpid/src/acpi/dmar/mod.rs b/drivers/acpid/src/acpi/dmar/mod.rs
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--- a/drivers/acpid/src/acpi/dmar/mod.rs
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+++ b/drivers/acpid/src/acpi/dmar/mod.rs
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@@ -475,8 +475,12 @@ impl<'sdt> Iterator for DmarRawIter<'sdt> {
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.expect("expected a 2-byte slice to be convertible to [u8; 2]");
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- let ty = u16::from_ne_bytes(type_bytes);
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- let len = u16::from_ne_bytes(len_bytes);
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+ let len = u16::from_ne_bytes(len_bytes) as usize;
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+
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+ if len < 4 {
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+ return None;
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+ }
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+
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+ let ty = u16::from_ne_bytes(type_bytes);
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- let len = usize::try_from(len).expect("expected u16 to fit within usize");
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if len > remainder.len() {
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