3.3

CVE-2024-50044: linux Improper Locking

CVSS: 3.3v3.1LowModified
AliasesUBUNTU-CVE-2024-50044DEBIAN-CVE-2024-50044
Published 21-10-2024Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2024-50044 is a low (CVSS 3.3) Improper Locking vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 7.7% of scored vulnerabilities.

Overall risk
13/100
0100
Low · default modelHow is this calculated?
CVSS score
3.3/10
010
Low · v3.1 (NVD)
EPSS score
0.19%
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 50 · Related 47
DLA-4008-1DLA-4075-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change rfcomm_sk_state_change attempts to use sock_lock so it must never be called with it locked but rfcomm_sock_ioctl always attempt to lock it causing the following trace: ====================================================== WARNING: possible circular locking dependency detected 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted ------------------------------------------------------ syz-executor386/5093 is trying to acquire lock: ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline] ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73 but task is already holding lock: ffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

0.00 pp

From 0.19% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.19%

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

Affected systems

Ubuntu135 products
  • linuxAll versions (No fix recorded) | < 5.4.0-208.228 | < 5.15.0-127.137 | < 6.8.0-56.58
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1140.150 | < 5.15.0-1073.79 | < 6.8.0-1025.27
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 3241ad820dbb172021e0268b5611031991431626, < b77b3fb12fd483cae7c28648903b1d8a6b275f01 | ≥ 3241ad820dbb172021e0268b5611031991431626, < 869c6ee62ab8f01bf2419e45326642be5c9b670a | ≥ 3241ad820dbb172021e0268b5611031991431626, < ef44274dae9b0a90d1a97ce8b242a3b8243a7745 | ≥ 3241ad820dbb172021e0268b5611031991431626, < 496b2ab0fd10f205e08909a125485fdc98843dbe | ≥ 3241ad820dbb172021e0268b5611031991431626, < ced98072d3511b232ae1d3347945f35f30c0e303 | ≥ 3241ad820dbb172021e0268b5611031991431626, < 38b2d5a57d125e1c17661b8308c0240c4a43b534 | ≥ 3241ad820dbb172021e0268b5611031991431626, < 4cb9807c9b53bf1e5560420d26f319f528b50268 | ≥ 3241ad820dbb172021e0268b5611031991431626, < 08d1914293dae38350b8088980e59fbc699a72fe | 2.6.27
  • linux_kernel≥ 2.6.27, < 5.10.227 | ≥ 5.11, < 5.15.168 | ≥ 5.16, < 6.1.113 | ≥ 6.2, < 6.6.57 | ≥ 6.7, < 6.11.4 | 6.12:rc1 | 6.12:rc2
Debian1 product
  • linux< 6.1.115-1 | < 6.11.4-1

3 vendors · 138 products

References

49 links
Show all 49 references