diff options
| -rw-r--r-- | changes/bug25440 | 5 | ||||
| -rw-r--r-- | src/common/sandbox.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/changes/bug25440 b/changes/bug25440 new file mode 100644 index 0000000000..f8d9dd4fab --- /dev/null +++ b/changes/bug25440 @@ -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. diff --git a/src/common/sandbox.c b/src/common/sandbox.c index 97acf894f3..e311ffaa86 100644 --- a/src/common/sandbox.c +++ b/src/common/sandbox.c @@ -449,7 +449,7 @@ allow_file_open(scmp_filter_ctx ctx, int use_openat, const char *file) { if (use_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)); } else { return seccomp_rule_add_1(ctx, SCMP_ACT_ALLOW, SCMP_SYS(open), |