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authorSean Dewar <seandewar@users.noreply.github.com>2021-11-01 16:21:16 +0000
committerSean Dewar <seandewar@users.noreply.github.com>2021-11-26 18:53:10 +0000
commit38a831e54a7261fda06555bc7464546ecfcbf897 (patch)
treec44a94badd3d4b7c5c71f94f167e49b9f23e6eeb /src
parent39776d1a6513e33a33addb69deae72ab2ecafef4 (diff)
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vim-patch:7.4.1777
Problem: Newly added features can escape the sandbox. Solution: Add checks for restricted and secure. (Yasuhiro Matsumoto) https://github.com/vim/vim/commit/3849992b16011e36a5cb5be4b127f843389b96fd timer_start is missing check_secure. The timer callback can, for example, call a function defined from outside the sandbox that does stuff that would be disallowed from inside the sandbox. This is usually not allowed. Cherry-pick eval.txt change from: https://github.com/vim/vim/commit/68e6560b84f196c82e27a72669684d5506a3a837 Required for v8.1.2013.
Diffstat (limited to 'src')
-rw-r--r--src/nvim/eval/funcs.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/nvim/eval/funcs.c b/src/nvim/eval/funcs.c
index dfadd28ebe..33ca4016cf 100644
--- a/src/nvim/eval/funcs.c
+++ b/src/nvim/eval/funcs.c
@@ -11551,6 +11551,9 @@ static void f_timer_start(typval_T *argvars, typval_T *rettv, FunPtr fptr)
dict_T *dict;
rettv->vval.v_number = -1;
+ if (check_secure()) {
+ return;
+ }
if (argvars[2].v_type != VAR_UNKNOWN) {
if (argvars[2].v_type != VAR_DICT