diff options
Diffstat (limited to 'src/syscall/exec_linux.go')
| -rw-r--r-- | src/syscall/exec_linux.go | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/syscall/exec_linux.go b/src/syscall/exec_linux.go index 4b8199a2e5..39764f7076 100644 --- a/src/syscall/exec_linux.go +++ b/src/syscall/exec_linux.go @@ -206,9 +206,15 @@ func forkAndExecInChild(argv0 *byte, argv, envv []*byte, chroot, dir *byte, attr // User and groups if cred := sys.Credential; cred != nil { ngroups := uintptr(len(cred.Groups)) + groups := uintptr(0) if ngroups > 0 { - groups := unsafe.Pointer(&cred.Groups[0]) - _, _, err1 = RawSyscall(SYS_SETGROUPS, ngroups, uintptr(groups), 0) + groups = uintptr(unsafe.Pointer(&cred.Groups[0])) + } + // Don't call setgroups in case of user namespace, gid mappings + // and disabled setgroups, because otherwise unprivileged user namespace + // will fail with any non-empty SysProcAttr.Credential. + if !(sys.GidMappings != nil && !sys.GidMappingsEnableSetgroups && ngroups == 0) { + _, _, err1 = RawSyscall(SYS_SETGROUPS, ngroups, groups, 0) if err1 != 0 { goto childerror } |