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BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]
BUG: KMSAN: kernel-infoleak in __copy_to_user_inatomic include/linux/uaccess.h:125 [inline]
BUG: KMSAN: kernel-infoleak in copy_to_user_nofault+0x129/0x1f0 mm/maccess.c:149
 instrument_copy_to_user include/linux/instrumented.h:114 [inline]
 __copy_to_user_inatomic include/linux/uaccess.h:125 [inline]
 copy_to_user_nofault+0x129/0x1f0 mm/maccess.c:149
 ____bpf_probe_write_user kernel/trace/bpf_trace.c:349 [inline]
 bpf_probe_write_user+0x104/0x180 kernel/trace/bpf_trace.c:327
 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997
 __bpf_prog_run64+0xb5/0xe0 kernel/bpf/core.c:2236
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run2+0x116/0x300 kernel/trace/bpf_trace.c:2420
 __bpf_trace_kfree+0x29/0x40 include/trace/events/kmem.h:94
 trace_kfree include/trace/events/kmem.h:94 [inline]
 kfree+0x6a5/0xa30 mm/slub.c:4377
 tomoyo_realpath_from_path+0xe2/0xaa0 security/tomoyo/realpath.c:250
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_check_open_permission+0x1ef/0xc50 security/tomoyo/file.c:771
 tomoyo_file_open+0x271/0x360 security/tomoyo/tomoyo.c:334
 security_file_open+0x9a/0x970 security/security.c:2961
 do_dentry_open+0x4fd/0x2120 fs/open.c:942
 vfs_open+0x7e/0xa0 fs/open.c:1089
 do_open fs/namei.c:3642 [inline]
 path_openat+0x4a3c/0x5b00 fs/namei.c:3799
 do_filp_open+0x20e/0x590 fs/namei.c:3826
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1406
 do_sys_open fs/open.c:1421 [inline]
 __do_sys_openat fs/open.c:1437 [inline]
 __se_sys_openat fs/open.c:1432 [inline]
 __x64_sys_openat+0x2a1/0x310 fs/open.c:1432
 x64_sys_call+0x3a64/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable stack created at:
 __bpf_prog_run64+0x45/0xe0 kernel/bpf/core.c:2236
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
 bpf_trace_run2+0x116/0x300 kernel/trace/bpf_trace.c:2420

Bytes 0-7 of 8 are uninitialized
Memory access of size 8 starts at ffff88802b74b458
Data copied to user address 00000000ffffffff

CPU: 1 PID: 7095 Comm: dhcpcd-run-hook Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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