7.8

CVE-2023-53106: nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition

Analyzed
AliasesUBUNTU-CVE-2023-53106DEBIAN-CVE-2023-53106
Published 02-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53106 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 7
SUSE-SU-2025:01918-1SUSE-SU-2025:01966-1SUSE-SU-2025:01982-1SUSE-SU-2025:01983-1SUSE-SU-2025:01995-1SUSE-SU-2025:02173-1

Timeline

  1. 02-05-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.21% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu116 products
  • linux< 4.4.0-242.276 | < 4.15.0-214.225 | < 5.4.0-156.173 | < 5.15.0-79.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1120.126 | < 4.4.0-1158.173 | < 4.15.0-1159.172 | < 5.4.0-1107.115 | < 5.15.0-1042.47
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 35630df68d6030daf12dde12ed07bbe26324e6ac, < 2156490c4b7cacda9a18ec99929940b8376dc0e3 | ≥ 35630df68d6030daf12dde12ed07bbe26324e6ac, < 3405eb641dafcc8b28d174784b203c1622c121bf | ≥ 35630df68d6030daf12dde12ed07bbe26324e6ac, < b0c202a8dc63008205a5d546559736507a9aae66 | ≥ 35630df68d6030daf12dde12ed07bbe26324e6ac, < 43aa468df246175207a7d5d7d6d31b231f15b49c | ≥ 35630df68d6030daf12dde12ed07bbe26324e6ac, < 84dd9cc34014e3a3dcce0eb6d54b8a067e97676b | ≥ 35630df68d6030daf12dde12ed07bbe26324e6ac, < 5e331022b448fbc5e76f24349cd0246844dcad25 | ≥ 35630df68d6030daf12dde12ed07bbe26324e6ac, < f589e5b56c562d99ea74e05b1c3f0eab78aa17a3 | ≥ 35630df68d6030daf12dde12ed07bbe26324e6ac, < 5000fe6c27827a61d8250a7e4a1d26c3298ef4f6 | 3.17
  • linux_kernel≥ 3.17, < 4.14.311 | ≥ 4.15, < 4.19.279 | ≥ 4.20, < 5.4.238 | ≥ 5.5, < 5.10.176 | ≥ 5.11, < 5.15.104 | ≥ 5.16, < 6.1.21 | ≥ 6.2, < 6.2.8 | 6.3:rc1 | 6.3:rc2
Debian1 product
  • linux< 6.1.25-1

3 vendors · 119 products

References

12 links
Show all 12 references