=====================================================
BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x597/0x2350 drivers/usb/core/urb.c:430
 usb_submit_urb+0x597/0x2350 drivers/usb/core/urb.c:430
 usbtmc_write+0xc32/0x1220 drivers/usb/class/usbtmc.c:1606
 do_loop_readv_writev fs/read_write.c:764 [inline]
 vfs_writev+0x96b/0x1500 fs/read_write.c:973
 do_pwritev fs/read_write.c:1072 [inline]
 __do_compat_sys_pwritev fs/read_write.c:1196 [inline]
 __se_compat_sys_pwritev fs/read_write.c:1190 [inline]
 __ia32_compat_sys_pwritev+0x315/0x530 fs/read_write.c:1190
 ia32_sys_call+0x1bc9/0x40d0 arch/x86/include/generated/asm/syscalls_32.h:335
 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:3998 [inline]
 slab_alloc_node mm/slub.c:4041 [inline]
 __kmalloc_cache_noprof+0x4f0/0xb00 mm/slub.c:4188
 kmalloc_noprof include/linux/slab.h:681 [inline]
 usbtmc_create_urb drivers/usb/class/usbtmc.c:757 [inline]
 usbtmc_write+0x3d3/0x1220 drivers/usb/class/usbtmc.c:1547
 do_loop_readv_writev fs/read_write.c:764 [inline]
 vfs_writev+0x96b/0x1500 fs/read_write.c:973
 do_pwritev fs/read_write.c:1072 [inline]
 __do_compat_sys_pwritev fs/read_write.c:1196 [inline]
 __se_compat_sys_pwritev fs/read_write.c:1190 [inline]
 __ia32_compat_sys_pwritev+0x315/0x530 fs/read_write.c:1190
 ia32_sys_call+0x1bc9/0x40d0 arch/x86/include/generated/asm/syscalls_32.h:335
 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

Bytes 13-15 of 16 are uninitialized
Memory access of size 16 starts at ffff88801ed69000

CPU: 0 UID: 0 PID: 7280 Comm: syz.4.529 Not tainted 6.11.0-rc6-syzkaller-00308-gb31c44928842 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
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