===================================================== BUG: KMSAN: uninit-value in nci_extract_activation_params_iso_dep net/nfc/nci/ntf.c:407 [inline] BUG: KMSAN: uninit-value in nci_rf_intf_activated_ntf_packet net/nfc/nci/ntf.c:623 [inline] BUG: KMSAN: uninit-value in nci_ntf_packet+0x383b/0x39c0 net/nfc/nci/ntf.c:802 nci_extract_activation_params_iso_dep net/nfc/nci/ntf.c:407 [inline] nci_rf_intf_activated_ntf_packet net/nfc/nci/ntf.c:623 [inline] nci_ntf_packet+0x383b/0x39c0 net/nfc/nci/ntf.c:802 nci_rx_work+0x288/0x5d0 net/nfc/nci/core.c:1532 process_one_work kernel/workqueue.c:3267 [inline] process_scheduled_works+0xa81/0x1bd0 kernel/workqueue.c:3348 worker_thread+0xea5/0x1560 kernel/workqueue.c:3429 kthread+0x3e2/0x540 kernel/kthread.c:389 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Uninit was created at: slab_post_alloc_hook mm/slub.c:3877 [inline] slab_alloc_node mm/slub.c:3918 [inline] kmem_cache_alloc_node+0x622/0xc90 mm/slub.c:3961 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577 __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1319 [inline] virtual_ncidev_write+0x6d/0x290 drivers/nfc/virtual_ncidev.c:120 vfs_write+0x497/0x14d0 fs/read_write.c:588 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xe0 fs/read_write.c:652 x64_sys_call+0x3062/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 0 PID: 3331 Comm: kworker/u8:20 Not tainted 6.9.0-syzkaller-02707-g614da38e2f7a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: nfc2_nci_rx_wq nci_rx_work =====================================================