Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 1 PID: 5865 Comm: cxacru Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106 panic+0x2ca/0x720 kernel/panic.c:340 check_panic_on_warn kernel/panic.c:236 [inline] __warn+0x2e0/0x470 kernel/panic.c:681 __report_bug lib/bug.c:199 [inline] report_bug+0x2be/0x4f0 lib/bug.c:219 handle_bug+0xcf/0x120 arch/x86/kernel/traps.c:310 exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:345 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:606 RIP: 0010:fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:144 [inline] RIP: 0010:firmware_fallback_sysfs+0x722/0x950 drivers/base/firmware_loader/fallback.c:234 Code: df e8 c2 3c f9 ff 45 89 e7 eb bc e8 f8 61 33 fc c6 05 76 f1 22 09 01 48 c7 c7 a0 8b 42 8b e8 e5 53 2d 05 eb a7 e8 de 61 33 fc <0f> 0b 4c 89 f7 48 c7 c6 80 8c 42 8b 4c 89 e2 e8 ba 93 31 05 eb 8c RSP: 0018:ffffc90004a77ac0 EFLAGS: 00010293 RAX: ffffffff85540fa2 RBX: dffffc0000000000 RCX: ffff88802ad7bc00 RDX: 0000000000000000 RSI: 00000000fffffff5 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff8e8c7aef R09: 1ffffffff1d18f5d R10: dffffc0000000000 R11: fffffbfff1d18f5e R12: ffffc90004a77d20 R13: 0000000000001770 R14: ffff8881400e6078 R15: 00000000fffffff5 _request_firmware+0xf29/0x1520 drivers/base/firmware_loader/main.c:936 request_firmware+0x36/0x50 drivers/base/firmware_loader/main.c:987 cxacru_find_firmware+0x105/0x230 drivers/usb/atm/cxacru.c:994 cxacru_heavy_init+0x17e/0xc40 drivers/usb/atm/cxacru.c:1016 usbatm_do_heavy_init+0x8e/0x110 drivers/usb/atm/usbatm.c:963 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Kernel Offset: disabled Rebooting in 86400 seconds..