Alexandre Julliard pushed to branch master at wine / wine

Commits:

• 18f55c30
  by Yuxuan Shui at 2025-06-25T12:17:27+02:00

  crypt32: Don't release context in CSignedEncodeMsg_Open.
  
  The docs say it should be released in the last CryptMsgUpdate, but tests show
  it's actually released in CryptMsgClose. So let's do the same.
  
  This solve a use-after-free issue for signed messages, because they contains
  HCRYPTHASH objects which references the context internally, and will use it
  in CryptDestroyHash. If the context is released in CSignedEncodeMsg_Open, this
  will be a use-after-free.
  

2 changed files:

• dlls/crypt32/msg.c
• dlls/crypt32/tests/msg.c