Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
70 lines
1.2 KiB
C
70 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#define _GNU_SOURCE
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#define __SANE_USERSPACE_TYPES__
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include "kselftest_harness.h"
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#include "wrappers.h"
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TEST(anon_inode_no_chown)
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{
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int fd_context;
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fd_context = sys_fsopen("tmpfs", 0);
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ASSERT_GE(fd_context, 0);
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ASSERT_LT(fchown(fd_context, 1234, 5678), 0);
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ASSERT_EQ(errno, EOPNOTSUPP);
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EXPECT_EQ(close(fd_context), 0);
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}
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TEST(anon_inode_no_chmod)
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{
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int fd_context;
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fd_context = sys_fsopen("tmpfs", 0);
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ASSERT_GE(fd_context, 0);
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ASSERT_LT(fchmod(fd_context, 0777), 0);
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ASSERT_EQ(errno, EOPNOTSUPP);
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EXPECT_EQ(close(fd_context), 0);
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}
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TEST(anon_inode_no_exec)
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{
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int fd_context;
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fd_context = sys_fsopen("tmpfs", 0);
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ASSERT_GE(fd_context, 0);
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ASSERT_LT(execveat(fd_context, "", NULL, NULL, AT_EMPTY_PATH), 0);
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ASSERT_EQ(errno, EACCES);
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EXPECT_EQ(close(fd_context), 0);
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}
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TEST(anon_inode_no_open)
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{
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int fd_context;
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fd_context = sys_fsopen("tmpfs", 0);
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ASSERT_GE(fd_context, 0);
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ASSERT_GE(dup2(fd_context, 500), 0);
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ASSERT_EQ(close(fd_context), 0);
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fd_context = 500;
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ASSERT_LT(open("/proc/self/fd/500", 0), 0);
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ASSERT_EQ(errno, ENXIO);
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EXPECT_EQ(close(fd_context), 0);
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}
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TEST_HARNESS_MAIN
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