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daa66ed62

Denys Vlasenko
Denys Vlasenko
2022-08-02
SUCCESS Duration: 156s

Subject

ash: fix use-after-free in pattern substituon code

Binary

No binary (build failed)

Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

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Build Log

(log yok)

Commit Diff GitHub →

shell/ash.c +4 -2
shell/ash.c+4 -2
@@ -7324,13 +7324,15 @@ subevalvar(char *start, char *str, int strloc,
if (idx >= end)
break;
STPUTC(*idx, expdest);
+ if (stackblock() != restart_detect)
+ goto restart;
if (quotes && (unsigned char)*idx == CTLESC) {
idx++;
len++;
STPUTC(*idx, expdest);
+ if (stackblock() != restart_detect)
+ goto restart;
}
- if (stackblock() != restart_detect)
- goto restart;
idx++;
len++;
rmesc++;