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authorCatalin Marinas <catalin.marinas@arm.com>2022-12-22 18:12:50 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-18 11:58:12 +0100
commit80a82f6eb3b75c8bb02ada8f7f55efca08b74eec (patch)
tree14a16362fdf37fe99c3f05c8956b1a9068e373f0 /fs/binfmt_elf.c
parent5fc5cdee8ef2db8e89451a4310be10c17fae1d4d (diff)
downloadlinux-80a82f6eb3b75c8bb02ada8f7f55efca08b74eec.tar.gz
elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size}
commit 19e183b54528f11fafeca60fc6d0821e29ff281e upstream.

A subsequent fix for arm64 will use this parameter to parse the vma
information from the snapshot created by dump_vma_snapshot() rather than
traversing the vma list without the mmap_lock.

Fixes: 6dd8b1a0b6cb ("arm64: mte: Dump the MTE tags in the core file")
Cc: <stable@vger.kernel.org> # 5.18.x
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Seth Jenkins <sethjenkins@google.com>
Suggested-by: Seth Jenkins <sethjenkins@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221222181251.1345752-3-catalin.marinas@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/binfmt_elf.c')
-rw-r--r--fs/binfmt_elf.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 6a11025e5850..444302afc673 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2209,7 +2209,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 	 * The number of segs are recored into ELF header as 16bit value.
 	 * Please check DEFAULT_MAX_MAP_COUNT definition when you modify here.
 	 */
-	segs = cprm->vma_count + elf_core_extra_phdrs();
+	segs = cprm->vma_count + elf_core_extra_phdrs(cprm);
 
 	/* for notes section */
 	segs++;
@@ -2249,7 +2249,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 	dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE);
 
 	offset += cprm->vma_data_size;
-	offset += elf_core_extra_data_size();
+	offset += elf_core_extra_data_size(cprm);
 	e_shoff = offset;
 
 	if (e_phnum == PN_XNUM) {