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BUG: KMSAN: uninit-value in nsim_get_ringparam+0xa8/0xe0 drivers/net/netdevsim/ethtool.c:77
 nsim_get_ringparam+0xa8/0xe0 drivers/net/netdevsim/ethtool.c:77
 ethtool_set_ringparam+0x268/0x570 net/ethtool/ioctl.c:2072
 __dev_ethtool net/ethtool/ioctl.c:3209 [inline]
 dev_ethtool+0x126d/0x2a40 net/ethtool/ioctl.c:3398
 dev_ioctl+0xb0e/0x1280 net/core/dev_ioctl.c:759
 compat_ifr_data_ioctl net/socket.c:3389 [inline]
 compat_sock_ioctl_trans net/socket.c:3419 [inline]
 compat_sock_ioctl+0xeea/0x1360 net/socket.c:3509
 __do_compat_sys_ioctl fs/ioctl.c:1004 [inline]
 __se_compat_sys_ioctl+0x80f/0x1020 fs/ioctl.c:947
 __ia32_compat_sys_ioctl+0x93/0xe0 fs/ioctl.c:947
 ia32_sys_call+0x2226/0x4180 arch/x86/include/generated/asm/syscalls_32.h:55
 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

Local variable kernel_ringparam created at:
 ethtool_set_ringparam+0x96/0x570 net/ethtool/ioctl.c:2063
 __dev_ethtool net/ethtool/ioctl.c:3209 [inline]
 dev_ethtool+0x126d/0x2a40 net/ethtool/ioctl.c:3398

CPU: 0 UID: 0 PID: 20141 Comm: syz.9.4769 Not tainted 6.13.0-syzkaller-04788-g7004a2e46d16 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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