=====================================================
BUG: KMSAN: uninit-value in full_proxy_write+0x101/0x3f0 fs/debugfs/file.c:394
 full_proxy_write+0x101/0x3f0 fs/debugfs/file.c:394
 vfs_write+0x48a/0x1540 fs/read_write.c:677
 ksys_write+0x240/0x4b0 fs/read_write.c:731
 __do_sys_write fs/read_write.c:742 [inline]
 __se_sys_write fs/read_write.c:739 [inline]
 __ia32_sys_write+0x91/0xe0 fs/read_write.c:739
 ia32_sys_call+0x2f4b/0x4180 arch/x86/include/generated/asm/syscalls_32.h:5
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was stored to memory at:
 __debugfs_file_get+0xe59/0xef0 fs/debugfs/file.c:120
 full_proxy_open_regular+0x67/0xa00 fs/debugfs/file.c:447
 do_dentry_open+0x1bdd/0x26b0 fs/open.c:955
 vfs_open+0x53/0x5b0 fs/open.c:1085
 do_open fs/namei.c:3830 [inline]
 path_openat+0x56a1/0x6250 fs/namei.c:3989
 do_filp_open+0x268/0x600 fs/namei.c:4016
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1427
 do_sys_open fs/open.c:1442 [inline]
 __do_compat_sys_openat fs/open.c:1504 [inline]
 __se_compat_sys_openat fs/open.c:1502 [inline]
 __ia32_compat_sys_openat+0x298/0x300 fs/open.c:1502
 ia32_sys_call+0x2fb4/0x4180 arch/x86/include/generated/asm/syscalls_32.h:296
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was stored to memory at:
 __debugfs_file_get+0xdff/0xef0 fs/debugfs/file.c:118
 full_proxy_open_regular+0x67/0xa00 fs/debugfs/file.c:447
 do_dentry_open+0x1bdd/0x26b0 fs/open.c:955
 vfs_open+0x53/0x5b0 fs/open.c:1085
 do_open fs/namei.c:3830 [inline]
 path_openat+0x56a1/0x6250 fs/namei.c:3989
 do_filp_open+0x268/0x600 fs/namei.c:4016
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1427
 do_sys_open fs/open.c:1442 [inline]
 __do_compat_sys_openat fs/open.c:1504 [inline]
 __se_compat_sys_openat fs/open.c:1502 [inline]
 __ia32_compat_sys_openat+0x298/0x300 fs/open.c:1502
 ia32_sys_call+0x2fb4/0x4180 arch/x86/include/generated/asm/syscalls_32.h:296
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4121 [inline]
 slab_alloc_node mm/slub.c:4164 [inline]
 __kmalloc_cache_noprof+0x8e3/0xdf0 mm/slub.c:4320
 kmalloc_noprof include/linux/slab.h:901 [inline]
 __debugfs_file_get+0x31d/0xef0 fs/debugfs/file.c:101
 full_proxy_open_regular+0x67/0xa00 fs/debugfs/file.c:447
 do_dentry_open+0x1bdd/0x26b0 fs/open.c:955
 vfs_open+0x53/0x5b0 fs/open.c:1085
 do_open fs/namei.c:3830 [inline]
 path_openat+0x56a1/0x6250 fs/namei.c:3989
 do_filp_open+0x268/0x600 fs/namei.c:4016
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1427
 do_sys_open fs/open.c:1442 [inline]
 __do_compat_sys_openat fs/open.c:1504 [inline]
 __se_compat_sys_openat fs/open.c:1502 [inline]
 __ia32_compat_sys_openat+0x298/0x300 fs/open.c:1502
 ia32_sys_call+0x2fb4/0x4180 arch/x86/include/generated/asm/syscalls_32.h:296
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 0 UID: 0 PID: 9871 Comm: syz.0.1499 Not tainted 6.13.0-syzkaller-09950-g60c828cf80c0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
=====================================================