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[klibc:update-dash] [EVAL] Fix use-after-free in dotrap/evalstring
2019 Jan 25
0
[klibc:update-dash] [EVAL] Fix use-after-free in dotrap/evalstring
...usr/dash/histedit.c b/usr/dash/histedit.c index b27d6294..94465d78 100644 --- a/usr/dash/histedit.c +++ b/usr/dash/histedit.c @@ -372,8 +372,7 @@ histcmd(int argc, char **argv) out2str(s); } - evalstring(strcpy(stalloc(strlen(s) + 1), s), - 0); + evalstring(s, 0); if (displayhist && hist) { /* * XXX what about recursive and
[klibc:update-dash] [TRAP] Make sure evalskip is zero before running traps
2019 Jan 25
0
[klibc:update-dash] [TRAP] Make sure evalskip is zero before running traps
...ns(+), 4 deletions(-) diff --git a/usr/dash/eval.c b/usr/dash/eval.c index 755136e2..741bf120 100644 --- a/usr/dash/eval.c +++ b/usr/dash/eval.c @@ -197,6 +197,9 @@ evaltree(union node *n, int flags) TRACE(("evaltree(NULL) called\n")); goto out; } + + dotrap(); + #ifndef SMALL displayhist = 1; /* show history substitutions done with fc */ #endif @@ -308,8 +311,7 @@ out: if (checkexit & exitstatus) goto exexit; - if (pendingsigs) - dotrap(); + dotrap(); if (flags & EV_EXIT) { exexit: diff --git a/usr/dash/trap.c b/usr/dash/trap.c index 182fa7ac..3ff45318 100644...
[klibc:update-dash] dash: [EVAL] Fix use-after-free in dotrap/evalstring
2020 Mar 28
0
[klibc:update-dash] dash: [EVAL] Fix use-after-free in dotrap/evalstring
...usr/dash/histedit.c b/usr/dash/histedit.c index b27d6294..94465d78 100644 --- a/usr/dash/histedit.c +++ b/usr/dash/histedit.c @@ -372,8 +372,7 @@ histcmd(int argc, char **argv) out2str(s); } - evalstring(strcpy(stalloc(strlen(s) + 1), s), - 0); + evalstring(s, 0); if (displayhist && hist) { /* * XXX what about recursive and
[klibc:update-dash] dash: [TRAP] Make sure evalskip is zero before running traps
2020 Mar 28
0
[klibc:update-dash] dash: [TRAP] Make sure evalskip is zero before running traps
...ns(+), 4 deletions(-) diff --git a/usr/dash/eval.c b/usr/dash/eval.c index adf05fde..578d8919 100644 --- a/usr/dash/eval.c +++ b/usr/dash/eval.c @@ -197,6 +197,9 @@ evaltree(union node *n, int flags) TRACE(("evaltree(NULL) called\n")); goto out; } + + dotrap(); + #ifndef SMALL displayhist = 1; /* show history substitutions done with fc */ #endif @@ -308,8 +311,7 @@ out: if (checkexit & exitstatus) goto exexit; - if (pendingsigs) - dotrap(); + dotrap(); if (flags & EV_EXIT) { exexit: diff --git a/usr/dash/trap.c b/usr/dash/trap.c index 182fa7ac..3ff45318 100644...