external/cde
1
0
Fork 0
mirror of git://git.code.sf.net/p/cdesktopenv/code synced 2025-03-09 15:50:02 +00:00
Code Issues Releases Wiki Activity

Fix memory leak in typeset (rhbz#1036470)

Browse source 
A memory leak occurred when typeset was used in a function called
from within a command substitution. This fix was backported from
the 93v- beta by Red Hat on 22 Jan 2014. Source:
642af4d6/f/ksh-20120801-memlik3.patch

src/cmd/ksh93/include/name.h,
src/cmd/ksh93/sh/subshell.c:
- Replace the nv_subsaved() function by the version from ksh 93v-.
  This version frees a table from memory if the NV_TABLE flag is
  passed in the new second parameter, a bitmask for flags (which
  was oddly named 'table'; I've renamed it to 'flags').

src/cmd/ksh93/sh/name.c:
- nv_delete(): When calling nv_subsaved(), pass on the NV_TABLE
  flag if given.
- table_unset(): Call nv_delete() with the NV_TABLE flag.

src/cmd/ksh93/tests/leaks.sh:
- Add test based on the reproducer provided in Red Hat bug 1036470.
This commit is contained in:
Martijn Dekker 2020-09-15 23:39:54 +02:00
parent 05683ec75b
commit 461a1aebc1
4 changed files with 37 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/cmd/ksh93/include/name.h
View file

@ -217,7 +217,7 @@ extern Namval_t *nv_mount(Namval_t*, const char *name, Dt_t*);
extern Namval_t *nv_arraychild(Namval_t*, Namval_t*, int);
extern int nv_compare(Dt_t*, Void_t*, Void_t*, Dtdisc_t*);
extern void nv_outnode(Namval_t*,Sfio_t*, int, int);
extern int nv_subsaved(Namval_t*);
extern int nv_subsaved(Namval_t*, int);
extern void nv_typename(Namval_t*, Sfio_t*);
extern void nv_newtype(Namval_t*);
extern int nv_istable(Namval_t*);