diff options
| author | Catalin Marinas <[email protected]> | 2022-04-25 16:18:33 +0100 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2022-04-28 11:37:06 +0100 |
| commit | c35fe2a68f29a0bda15ae994154cacaae5f69791 (patch) | |
| tree | 123bc1df66adb383b774cde5cf4be32ff3839d24 /arch/arm64/kernel/elfcore.c | |
| parent | 23bc8f69f0eceecbb87c3801d2e48827d2dca92b (diff) | |
elf: Fix the arm64 MTE ELF segment name and value
Unfortunately, the name/value choice for the MTE ELF segment type
(PT_ARM_MEMTAG_MTE) was pretty poor: LOPROC+1 is already in use by
PT_AARCH64_UNWIND, as defined in the AArch64 ELF ABI
(https://github.com/ARM-software/abi-aa/blob/main/aaelf64/aaelf64.rst).
Update the ELF segment type value to LOPROC+2 and also change the define
to PT_AARCH64_MEMTAG_MTE to match the AArch64 ELF ABI namespace. The
AArch64 ELF ABI document is updating accordingly (segment type not
previously mentioned in the document).
Signed-off-by: Catalin Marinas <[email protected]>
Fixes: 761b9b366cec ("elf: Introduce the ARM MTE ELF segment type")
Cc: Will Deacon <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Eric Biederman <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Luis Machado <[email protected]>
Cc: Richard Earnshaw <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'arch/arm64/kernel/elfcore.c')
| -rw-r--r-- | arch/arm64/kernel/elfcore.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/elfcore.c b/arch/arm64/kernel/elfcore.c index 2b3f3d0544b9..98d67444a5b6 100644 --- a/arch/arm64/kernel/elfcore.c +++ b/arch/arm64/kernel/elfcore.c @@ -95,7 +95,7 @@ int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset) for_each_mte_vma(current, vma) { struct elf_phdr phdr; - phdr.p_type = PT_ARM_MEMTAG_MTE; + phdr.p_type = PT_AARCH64_MEMTAG_MTE; phdr.p_offset = offset; phdr.p_vaddr = vma->vm_start; phdr.p_paddr = 0; |