aboutsummaryrefslogtreecommitdiff
path: root/dev
diff options
context:
space:
mode:
authorPierre-Marie Pédrot2019-09-02 08:56:59 +0200
committerPierre-Marie Pédrot2019-09-02 08:56:59 +0200
commit083e83a2e82c17c13b5af7d59029d4ef0aa1b613 (patch)
tree7609e9b92c93fe21603aaa2f7d90805e30812f53 /dev
parent1f74267d7e4affe14dbafc1a6f1e6f3f465f75a8 (diff)
parent24a9a9c4bef18133c0b5070992d3396ff7596a7c (diff)
Merge PR #9918: Fix #9294: critical bug with template polymorphism
Ack-by: JasonGross Ack-by: SkySkimmer Ack-by: Zimmi48 Ack-by: herbelin Ack-by: mattam82 Reviewed-by: ppedrot
Diffstat (limited to 'dev')
-rw-r--r--dev/doc/critical-bugs10
1 files changed, 10 insertions, 0 deletions
diff --git a/dev/doc/critical-bugs b/dev/doc/critical-bugs
index 01c2b574a2..d00c8cb11a 100644
--- a/dev/doc/critical-bugs
+++ b/dev/doc/critical-bugs
@@ -119,6 +119,16 @@ Universes
GH issue number: #8341
risk: unlikely to be activated by chance (requires a plugin)
+ component: template polymorphism
+ summary: template polymorphism not collecting side constrains on the universe level of a parameter; this is a general form of the previous issue about template polymorphism exploiting other ways to generate untracked constraints introduced: morally at the introduction of template polymorphism, 23 May 2006, 9c2d70b, r8845, Herbelin impacted released versions: at least V8.4-V8.4pl6, V8.5-V8.5pl3, V8.6-V8.6pl2, V8.7.0-V8.7.1, V8.8.0-V8.8.1, V8.9.0-V8.9.1, in theory also V8.1-V8.1pl4, V8.2-V8.2pl2, V8.3-V8.3pl2 but not exploit found there yet (an exploit using a plugin to force sharing of universe level is in principle possible though)
+ impacted development branches: all from 8.4 to 8.9 at the time of writing and suspectingly also all from 8.1 to 8.4 if a way to create untracked constraints can be found
+ impacted coqchk versions: a priori all (tested with V8.4 and V8.9 which accept the exploit)
+ fixed in: soon in master and V8.10.0 (PR #9918, Aug 2019, Dénès and Sozeau)
+ found by: Gilbert using explicit sharing of universes, exploit found for 8.5-8.9 by Pédrot, other variants generating sharing using sections, or using ltac tricks by Sozeau, exploit in 8.4 by Herbelin and Jason Gross by adding new tricks to Sozeau's variants
+ exploit: test-suite/failure/Template.v
+ GH issue number: #9294
+ risk: moderate risk to be activated by chance
+
Primitive projections
component: primitive projections, guard condition