Mercurial > hg > nginx
annotate src/core/ngx_rwlock.h @ 9062:987bee4363d1 quic
HTTP/3: handled insertion reference to a going to be evicted entry.
As per RFC 9204, section 3.2.2, a new entry can reference an entry in the
dynamic table that will be evicted when adding this new entry into the dynamic
table.
Previously, such inserts resulted in use-after-free since the old entry was
evicted before the insertion (ticket #2431). Now it's evicted after the
insertion.
This change fixes Insert with Name Reference and Duplicate encoder instructions.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Tue, 03 Jan 2023 16:24:45 +0400 |
| parents | d1816a2696de |
| children |
| rev | line source |
|---|---|
| 6101 | 1 |
| 2 /* | |
| 3 * Copyright (C) Ruslan Ermilov | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #ifndef _NGX_RWLOCK_H_INCLUDED_ | |
| 9 #define _NGX_RWLOCK_H_INCLUDED_ | |
| 10 | |
| 11 | |
| 12 #include <ngx_config.h> | |
| 13 #include <ngx_core.h> | |
| 14 | |
| 15 | |
| 16 void ngx_rwlock_wlock(ngx_atomic_t *lock); | |
| 17 void ngx_rwlock_rlock(ngx_atomic_t *lock); | |
| 18 void ngx_rwlock_unlock(ngx_atomic_t *lock); | |
|
7038
d1816a2696de
Introduced ngx_rwlock_downgrade().
Ruslan Ermilov <ru@nginx.com>
parents:
6101
diff
changeset
|
19 void ngx_rwlock_downgrade(ngx_atomic_t *lock); |
| 6101 | 20 |
| 21 | |
| 22 #endif /* _NGX_RWLOCK_H_INCLUDED_ */ |