fix(context): don't leak memory on multiple invalid objects (#25979)

3 files changed, 3 insertions, 3 deletions

diff --git a/src/nvim/context.c b/src/nvim/context.c
index f7ed800aa7..acf793c39a 100644
--- a/src/nvim/context.c
+++ b/src/nvim/context.c
@@ -380,7 +380,7 @@ int ctx_from_dict(Dictionary dict, Context *ctx, Error *err)
   assert(ctx != NULL);
 
   int types = 0;
-  for (size_t i = 0; i < dict.size; i++) {
+  for (size_t i = 0; i < dict.size && !ERROR_SET(err); i++) {
     KeyValuePair item = dict.items[i];
     if (item.value.type != kObjectTypeArray) {
       continue;
diff --git a/test/functional/api/vim_spec.lua b/test/functional/api/vim_spec.lua
index bc7e747916..8bbadda9b0 100644
--- a/test/functional/api/vim_spec.lua
+++ b/test/functional/api/vim_spec.lua
@@ -1982,7 +1982,7 @@ describe('API', function()
 
     it('errors when context dictionary is invalid', function()
       eq('E474: Failed to convert list to msgpack string buffer',
-         pcall_err(nvim, 'load_context', { regs = { {} } }))
+         pcall_err(nvim, 'load_context', { regs = { {} }, jumps = { {} } }))
       eq("Empty dictionary keys aren't allowed",
          pcall_err(nvim, 'load_context', { regs = { { [''] = '' } } }))
     end)
diff --git a/test/functional/vimscript/ctx_functions_spec.lua b/test/functional/vimscript/ctx_functions_spec.lua
index 66a8ec3550..17607f0794 100644
--- a/test/functional/vimscript/ctx_functions_spec.lua
+++ b/test/functional/vimscript/ctx_functions_spec.lua
@@ -378,7 +378,7 @@ describe('context functions', function()
     it('errors when context dictionary is invalid', function()
       call('ctxpush')
       eq('Vim:E474: Failed to convert list to msgpack string buffer',
-         pcall_err(call, 'ctxset', { regs = { {} } }))
+         pcall_err(call, 'ctxset', { regs = { {} }, jumps = { {} } }))
     end)
 
     it('sets context dictionary at index in context stack', function()