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BUG: KMSAN: uninit-value in i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:482 [inline]
BUG: KMSAN: uninit-value in __i2c_smbus_xfer+0x23e7/0x2f60 drivers/i2c/i2c-core-smbus.c:608
 i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:482 [inline]
 __i2c_smbus_xfer+0x23e7/0x2f60 drivers/i2c/i2c-core-smbus.c:608
 i2c_smbus_xfer+0x31d/0x4d0 drivers/i2c/i2c-core-smbus.c:546
 i2cdev_ioctl_smbus+0x4a1/0x660 drivers/i2c/i2c-dev.c:389
 i2cdev_ioctl+0xa14/0xf40 drivers/i2c/i2c-dev.c:478
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0x239/0x400 fs/ioctl.c:893
 __x64_sys_ioctl+0x97/0xe0 fs/ioctl.c:893
 x64_sys_call+0x1ebe/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable msgbuf1.i created at:
 i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:335 [inline]
 __i2c_smbus_xfer+0x86a/0x2f60 drivers/i2c/i2c-core-smbus.c:608
 i2c_smbus_xfer+0x31d/0x4d0 drivers/i2c/i2c-core-smbus.c:546

CPU: 1 UID: 0 PID: 31765 Comm: syz.3.9015 Tainted: G        W           6.16.0-rc3-syzkaller-00042-g78f4e737a53e #0 PREEMPT(undef) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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