dump_vma_snapshot() allocs memory for *vma_meta, when dump_vma_snapshot()
returns -EFAULT, the memory will be leaked, so we free it correctly.
Fixes: a07279c9a8cd7 ("binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot")
Cc: stable@xxxxxxxxxxxxxxx # v5.10
Signed-off-by: QiuXi <qiuxi1@xxxxxxxxxx>
---
fs/coredump.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/coredump.c b/fs/coredump.c
index 07afb5ddb1c4..19fe5312c10f 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -1127,8 +1127,10 @@ int dump_vma_snapshot(struct coredump_params *cprm, int *vma_count,
mmap_write_unlock(mm);
- if (WARN_ON(i != *vma_count))
+ if (WARN_ON(i != *vma_count)) {
+ kvfree(*vma_meta);
return -EFAULT;
+ }
*vma_data_size_ptr = vma_data_size;
return 0;
--
2.12.3
