CVE-2023-53106

nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition

HIGH

7.8

CVSS Score

Published: May 2, 2025 at 03:55 PM UTC

Updated: June 17, 2026 at 06:44 AM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition This bug influences both st_nci_i2c_remove and st_nci_spi_remove. Take st_nci_i2c_remove as an example. In st_nci_i2c_probe, it called ndlc_probe and bound &ndlc->sm_work with llt_ndlc_sm_work. When it calls ndlc_recv or timeout handler, it will finally call schedule_work to start the work. When we call st_nci_i2c_remove to remove the driver, there may be a sequence as follows: Fix it by finishing the work before cleanup in ndlc_remove CPU0 CPU1 |llt_ndlc_sm_work st_nci_i2c_remove | ndlc_remove | st_nci_remove | nci_free_device| kfree(ndev) | //free ndlc->ndev | |llt_ndlc_rcv_queue |nci_recv_frame |//use ndlc->ndev

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

3.17 ≤ v < 4.14.3113.17 ≤ v < 4.19.2793.17 ≤ v < 5.10.1763.17 ≤ v < 5.15.1043.17 ≤ v < 5.4.2383.17 ≤ v < 6.1.213.17 ≤ v < 6.2.83.17 ≤ v < 6.34.15 ≤ v < 4.19.2794.20 ≤ v < 5.4.2385.11 ≤ v < 5.15.1045.16 ≤ v < 6.1.215.5 ≤ v < 5.10.1766.2 ≤ v < 6.2.83.1735630df68d6030daf12dde12ed07bbe26324e6ac6.3 rc1 6.3 rc2

Vendor states this is fixed in 2156490c4b7cacda9a18ec99929940b8376dc0e3 (fixed)

Vendor states this is fixed in 3405eb641dafcc8b28d174784b203c1622c121bf (fixed)

Vendor states this is fixed in 43aa468df246175207a7d5d7d6d31b231f15b49c (fixed)

Vendor states this is fixed in 5000fe6c27827a61d8250a7e4a1d26c3298ef4f6 (fixed)

Vendor states this is fixed in 5e331022b448fbc5e76f24349cd0246844dcad25 (fixed)

Vendor states this is fixed in 84dd9cc34014e3a3dcce0eb6d54b8a067e97676b (fixed)

Vendor states this is fixed in b0c202a8dc63008205a5d546559736507a9aae66 (fixed)

Vendor states this is fixed in f589e5b56c562d99ea74e05b1c3f0eab78aa17a3 (fixed)

Vendor states this is fixed in 3.17 (unaffected)

Vendor states this is fixed in 4.14.311 (unaffected)

Vendor states this is fixed in 4.19.279 (unaffected)

Vendor states this is fixed in 5.10.176 (unaffected)