CVE-2026-80796

CVE-2026-80796 affects the Linux kernel NFC NCI driver . The functions nci_extract_activation_params_iso_dep() and nci_extract_activation_params_nfc_dep() read an inner length byte from the NCI RF_INTF_ACTIVATED_NTF payload and use it to memcpy() into fixed kernel buffers, but neither function re...

CVE-2026-80796

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: add datalen bound checks to activation parameter extractors nciextractactivationparamsisodep and nciextractactivationparamsnfcdep read an inner length byte from the NCI RFINTFACTIVATEDNTF payload and use it to memcpy in...

EUVD-2026-71439

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: add datalen bound checks to activation parameter extractors nciextractactivationparamsisodep and nciextractactivationparamsnfcdep read an inner length byte from the NCI RFINTFACTIVATEDNTF payload and use it to memcpy in...

CVE-2026-80795

CVE-2026-80795 is an out-of-bounds write in the Linux kernel's NFC NCI driver . The function nci_target_auto_activated() appends entries to the fixed-size array ndev->targets[NCI_MAX_DISCOVERED_TARGETS] without first checking whether the array is full. Because n_targets is only reset by nci_cl...

CVE-2026-80795

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix out-of-bounds write in ncitargetautoactivated ncitargetautoactivated appends a target to the fixed-size array ndev-targetsNCIMAXDISCOVEREDTARGETS and increments ndev-ntargets without first checking the array is full...

EUVD-2026-71437

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix uninit-value in the RF discover/activated NTF handlers ncirfdiscoverntfpacket and ncirfintfactivatedntfpacket each parse a notification into an on-stack struct ncirfdiscoverntf / ncirfintfactivatedntf that is not...

CVE-2026-80794

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix uninit-value in the RF discover/activated NTF handlers ncirfdiscoverntfpacket and ncirfintfactivatedntfpacket each parse a notification into an on-stack struct ncirfdiscoverntf / ncirfintfactivatedntf that is not...

CVE-2026-80794

This Linux kernel vulnerability affects the NFC NCI subsystem, specifically the nci_rf_discover_ntf_packet() and nci_rf_intf_activated_ntf_packet() handlers. The root cause is that on-stack notification structs are not zero-initialised before parsing. When a notification reports a zero rf_tech_sp...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: added flushworkqueue to prevent UAF. Our detector identified a bug caused by concurrent use-after-free when detaching a NCI device. The main reason for this bug is the unexpected scheduling between the delayed mechanism...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: assert requested protocol is valid The protocol is used in a bit mask to determine whether the protocol is supported. It is asserted that the provided protocol is less than the maximum value defined, thereby avoiding...

CVE-2026-31509

CVE-2026-31509 affects the Linux kernel NFC NCI subsystem. The vulnerability stems from nci_close_device() flushing rx_wq and tx_wq while holding req_lock, creating a circular locking dependency with nci_rx_work() and related paths. The fix moves the rx_wq flush to after req_lock is released, rel...

CVE-2026-23339

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on ncitransceive early error paths ncitransceive takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCIDATAEXCHAN...

CVE-2026-23330

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: complete pending data exchange on device close In nciclosedevice, complete any pending data exchange before closing. The data exchange callback e.g. rawsockdataexchangecomplete holds a socket reference. NIPA occasionall...

CVE-2026-23339

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on ncitransceive early error paths ncitransceive takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCIDATAEXCHAN...

CVE-2026-23339 nfc: nci: free skb on nci_transceive early error paths

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on ncitransceive early error paths ncitransceive takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCIDATAEXCHAN...

Linux Distros Unpatched Vulnerability : CVE-2026-23330

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nfc: nci: complete pending data exchange on device close In nciclosedevice, complete any pending data exchange before closing. The data exchange callback e.g...

Linux Distros Unpatched Vulnerability : CVE-2022-50854

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nfc: virtualncidev: Fix memory leak in virtualncisend skb should be free in virtualncisend, otherwise kmemleak will report memleak. Steps for reproduction...

Linux Distros Unpatched Vulnerability : CVE-2025-40043

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: nfc: nci: Add parameter validation for packet data Syzbot reported an uninitialized value bug in nciinitreq, which was introduced by commit 5aca7966d2a7...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-379453)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-379453 advisory. In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix possible NULL pointer dereference in sendacknowledge Handle memory allocation failu...

CVE-2022-49059 nfc: nci: add flush_workqueue to prevent uaf

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: add flushworkqueue to prevent uaf Our detector found a concurrent use-after-free bug when detaching an NCI device. The main reason for this bug is the unexpected scheduling between the used delayed mechanism timer and...