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stub: drop PE sections parsing cap

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This was added originally as it was thought that Windows applied
the same cap. Nowadays the specs do not mention it, and it is
believed Windows no longer applies it either, so drop it in order
to allow an arbitrary number of DTBs to be included

Fixes https://github.com/systemd/systemd/issues/35943
This commit is contained in:
Luca Boccassi
2025-01-10 21:02:55 +00:00
parent 97ac59f18d
commit 8c5b359579
1 changed files with 0 additions and 2 deletions
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2
src/boot/pe.c
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@@ -7,7 +7,6 @@
#define DOS_FILE_MAGIC "MZ"
#define PE_FILE_MAGIC "PE\0\0"
#define MAX_SECTIONS 96
#if defined(__i386__)
# define TARGET_MACHINE_TYPE 0x014CU
@@ -132,7 +131,6 @@ static bool verify_pe(
(pe->FileHeader.Machine == TARGET_MACHINE_TYPE ||
(allow_compatibility && pe->FileHeader.Machine == TARGET_MACHINE_TYPE_COMPATIBILITY)) &&
pe->FileHeader.NumberOfSections > 0 &&
pe->FileHeader.NumberOfSections <= MAX_SECTIONS &&
IN_SET(pe->OptionalHeader.Magic, OPTHDR32_MAGIC, OPTHDR64_MAGIC) &&
pe->FileHeader.SizeOfOptionalHeader < SIZE_MAX - (dos->ExeHeader + offsetof(PeFileHeader, OptionalHeader));
}