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-rw-r--r--test/syscalls/linux/proc.cc23
1 files changed, 6 insertions, 17 deletions
diff --git a/test/syscalls/linux/proc.cc b/test/syscalls/linux/proc.cc
index f3f80a12a..1ba7bf4f5 100644
--- a/test/syscalls/linux/proc.cc
+++ b/test/syscalls/linux/proc.cc
@@ -797,17 +797,12 @@ TEST(ProcCpuinfo, DeniesWriteNonRoot) {
constexpr int kNobody = 65534;
EXPECT_THAT(syscall(SYS_setuid, kNobody), SyscallSucceeds());
EXPECT_THAT(open("/proc/cpuinfo", O_WRONLY), SyscallFailsWithErrno(EACCES));
- // TODO(gvisor.dev/issue/1193): Properly support setting size attributes in
- // kernfs.
- if (!IsRunningOnGvisor() || IsRunningWithVFS1()) {
- EXPECT_THAT(truncate("/proc/cpuinfo", 123),
- SyscallFailsWithErrno(EACCES));
- }
+ EXPECT_THAT(truncate("/proc/cpuinfo", 123), SyscallFailsWithErrno(EACCES));
});
}
// With root privileges, it is possible to open /proc/cpuinfo with write mode,
-// but all write operations will return EIO.
+// but all write operations should fail.
TEST(ProcCpuinfo, DeniesWriteRoot) {
// VFS1 does not behave differently for root/non-root.
SKIP_IF(IsRunningWithVFS1());
@@ -816,16 +811,10 @@ TEST(ProcCpuinfo, DeniesWriteRoot) {
int fd;
EXPECT_THAT(fd = open("/proc/cpuinfo", O_WRONLY), SyscallSucceeds());
if (fd > 0) {
- EXPECT_THAT(write(fd, "x", 1), SyscallFailsWithErrno(EIO));
- EXPECT_THAT(pwrite(fd, "x", 1, 123), SyscallFailsWithErrno(EIO));
- }
- // TODO(gvisor.dev/issue/1193): Properly support setting size attributes in
- // kernfs.
- if (!IsRunningOnGvisor() || IsRunningWithVFS1()) {
- if (fd > 0) {
- EXPECT_THAT(ftruncate(fd, 123), SyscallFailsWithErrno(EIO));
- }
- EXPECT_THAT(truncate("/proc/cpuinfo", 123), SyscallFailsWithErrno(EIO));
+ // Truncate is not tested--it may succeed on some kernels without doing
+ // anything.
+ EXPECT_THAT(write(fd, "x", 1), SyscallFails());
+ EXPECT_THAT(pwrite(fd, "x", 1, 123), SyscallFails());
}
}