5.5

CVE-2023-53298: nfc: fix memory leak of se_io context in nfc_genl_se_io

Modified
AliasesUBUNTU-CVE-2023-53298DEBIAN-CVE-2023-53298
Published 16-09-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53298 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · +0.01 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 5 · Related 5
SUSE-SU-2025:03614-1SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1SUSE-SU-2025:3716-1SUSE-SU-2025:3761-1

Timeline

  1. 16-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: fix memory leak of se_io context in nfc_genl_se_io The callback context for sending/receiving APDUs to/from the selected secure element is allocated inside nfc_genl_se_io and supposed to be eventually freed in se_io_cb callback function. However, there are several error paths where the bwi_timer is not charged to call se_io_cb later, and the cb_context is leaked. The patch proposes to free the cb_context explicitly on those error paths. At the moment we can't simply check 'dev->ops->se_io()' return value as it may be negative in both cases: when the timer was charged and was not.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.14% 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.

Ubuntu123 products
  • linuxAll versions (No fix recorded) | < 5.4.0-152.169 | < 5.15.0-79.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1104.112 | < 5.15.0-1042.47
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 5ce3f32b5264b337bfd13a780452a17705307725, < 5321da6d84b87a34eea441677d649c34bd854169 | ≥ 5ce3f32b5264b337bfd13a780452a17705307725, < af452e35b9e6a87cd49e54a7a3d60d934b194651 | ≥ 5ce3f32b5264b337bfd13a780452a17705307725, < 271eed1736426103335c5aac50f15b0f4d236bc0 | ≥ 5ce3f32b5264b337bfd13a780452a17705307725, < 8978315cb4bf8878c9c8ec05dafd8f7ff539860d | ≥ 5ce3f32b5264b337bfd13a780452a17705307725, < c494365432dcdc549986f4d9af9eb6190cbdb153 | ≥ 5ce3f32b5264b337bfd13a780452a17705307725, < b2036a252381949d3b743a3de069324ae3028a57 | ≥ 5ce3f32b5264b337bfd13a780452a17705307725, < ba98db08895748c12e5ded52cd1598dce2c79e55 | ≥ 5ce3f32b5264b337bfd13a780452a17705307725, < 25ff6f8a5a3b8dc48e8abda6f013e8cc4b14ffea | 3.13
  • linux_kernel≥ 3.13, < 4.14.308 | ≥ 4.15, < 4.19.276 | ≥ 4.20, < 5.4.235 | ≥ 5.5, < 5.10.173 | ≥ 5.11, < 5.15.100 | ≥ 5.16, < 6.1.18 | ≥ 6.2, < 6.2.5
Debian1 product
  • linux< 6.1.20-1

3 vendors · 126 products

References

12 links
Show all 12 references