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Merge branch 'maint-0.2.9' into maint-0.3.2

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This commit is contained in:
Nick Mathewson 2018-08-08 09:26:22 -04:00
commit 8e68fe7e1c
2 changed files with 6 additions and 1 deletions
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5
changes/bug25440 Normal file
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@ -0,0 +1,5 @@
o Minor bugfixes (linux seccomp2 sandbox):
- Fix a bug in out sandboxing rules for the openat() syscall.
Previously, no openat() call would be permitted, which would break
filesystem operations on recent glibc versions. Fixes bug 25440;
bugfix on 0.2.9.15. Diagnosis and patch from Daniel Pinto.

2
src/common/sandbox.c
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@ -449,7 +449,7 @@ allow_file_open(scmp_filter_ctx ctx, int use_openat, const char *file)
{ {
if (use_openat) { if (use_openat) {
return seccomp_rule_add_2(ctx, SCMP_ACT_ALLOW, SCMP_SYS(openat), return seccomp_rule_add_2(ctx, SCMP_ACT_ALLOW, SCMP_SYS(openat),
SCMP_CMP_STR(0, SCMP_CMP_EQ, AT_FDCWD), SCMP_CMP(0, SCMP_CMP_EQ, (unsigned int)AT_FDCWD),
SCMP_CMP_STR(1, SCMP_CMP_EQ, file)); SCMP_CMP_STR(1, SCMP_CMP_EQ, file));
} else { } else {
return seccomp_rule_add_1(ctx, SCMP_ACT_ALLOW, SCMP_SYS(open), return seccomp_rule_add_1(ctx, SCMP_ACT_ALLOW, SCMP_SYS(open),