8.8

CVE-2023-54120: linux

CVSS: 8.8v3.1HighDeferred
AliasesUBUNTU-CVE-2023-54120DEBIAN-CVE-2023-54120
Published 24-12-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2023-54120 is a high (CVSS 8.8) vulnerability in linux. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.7% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.31%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 5
RHSA-2024:2394RHSA-2026:70402RHSA-2026:70403SUSE-SU-2026:0263-1SUSE-SU-2026:0316-1SUSE-SU-2026:0317-1

Timeline

  1. 24-12-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix race condition in hidp_session_thread There is a potential race condition in hidp_session_thread that may lead to use-after-free. For instance, the timer is active while hidp_del_timer is called in hidp_session_thread(). After hidp_session_put, then 'session' will be freed, causing kernel panic when hidp_idle_timeout is running. The solution is to use del_timer_sync instead of del_timer. Here is the call trace: ? hidp_session_probe+0x780/0x780 call_timer_fn+0x2d/0x1e0 __run_timers.part.0+0x569/0x940 hidp_session_probe+0x780/0x780 call_timer_fn+0x1e0/0x1e0 ktime_get+0x5c/0xf0 lapic_next_deadline+0x2c/0x40 clockevents_program_event+0x205/0x320 run_timer_softirq+0xa9/0x1b0 __do_softirq+0x1b9/0x641 __irq_exit_rcu+0xdc/0x190 irq_exit_rcu+0xe/0x20 sysvec_apic_timer_interrupt+0xa1/0xc0

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

0.00 pp

From 0.31% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.31%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu124 products
  • linuxAll versions (No fix recorded) | < 5.4.0-156.173 | < 5.15.0-79.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 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)
Debian1 product
  • linux< 6.1.25-1
Linux1 product
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 152f47bd6b995e0e98c85672f6d19894bc287ef2 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5f3d214d19899183d4e0cce7552998262112e4ab | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8a99e6200c38b78a45dcd12a6bdc43fdf4dc36be | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f7ec5ca433ceead8d9d78fd2febff094f289441d | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 0efb276d5848a3accc37c6f41b85e442c4768169 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f6719fd8f409fa1da8dc956e93822d25e1e8b360 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 248af9feca062a4ca9c3f2ccf67056c8a5eb817f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c95930abd687fcd1aa040dc4fe90dff947916460 | 2.6.12

3 vendors · 126 products

References

11 links
Show all 11 references