5.5

CVE-2022-49661: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2022-49661DEBIAN-CVE-2022-49661
Published 26-02-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2022-49661 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.27%
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 7 · Related 7
SUSE-SU-2025:0834-1SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1194-1SUSE-SU-2025:1241-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_open/close(): fix memory leak The gs_usb driver appears to suffer from a malady common to many USB CAN adapter drivers in that it performs usb_alloc_coherent() to allocate a number of USB request blocks (URBs) for RX, and then later relies on usb_kill_anchored_urbs() to free them, but this doesn't actually free them. As a result, this may be leaking DMA memory that's been used by the driver. This commit is an adaptation of the techniques found in the esd_usb2 driver where a similar design pattern led to a memory leak. It explicitly frees the RX URBs and their DMA memory via a call to usb_free_coherent(). Since the RX URBs were allocated in the gs_can_open(), we remove them in gs_can_close() rather than in the disconnect function as was done in esd_usb2. For more information, see the 928150fad41b ("can: esd_usb2: fix memory leak").

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

0.00 pp

From 0.27% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.27%

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

Ubuntu111 products
  • linuxAll versions (No fix recorded) | < 4.15.0-194.205 | < 5.4.0-128.144 | < 5.15.0-50.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1142.154 | < 5.4.0-1086.93 | < 5.15.0-1021.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ d08e973a77d128b25e01a08c34d89593fdf222da, < 339fa9f80d3b94177a7a459c6d115d3b56007d5a | ≥ d08e973a77d128b25e01a08c34d89593fdf222da, < c1d806bc29ff7ffe0e2a023583c8720ed96cb0b0 | ≥ d08e973a77d128b25e01a08c34d89593fdf222da, < d91492638b054f4a359621ef216242be5973ed6b | ≥ d08e973a77d128b25e01a08c34d89593fdf222da, < 6f655b5e13fa4b27e915b6c209ac0da74fd75963 | ≥ d08e973a77d128b25e01a08c34d89593fdf222da, < d0b8e223998866b3e7b2895927d4e9689b0a80d8 | ≥ d08e973a77d128b25e01a08c34d89593fdf222da, < 0e60230bc64355c80abe993d1719fdb318094e20 | ≥ d08e973a77d128b25e01a08c34d89593fdf222da, < ffb6cc6601ec7c8fa963dcf76025df4a02f2cf5c | ≥ d08e973a77d128b25e01a08c34d89593fdf222da, < 2bda24ef95c0311ab93bda00db40486acf30bd0a | 3.16
  • linux_kernel≥ 3.16, < 4.9.323 | ≥ 4.10, < 4.14.288 | ≥ 4.15, < 4.19.252 | ≥ 4.20, < 5.4.205 | ≥ 5.5, < 5.10.130 | ≥ 5.11, < 5.15.54 | ≥ 5.16, < 5.18.11 | 5.19:rc1 | 5.19:rc2 | 5.19:rc3 | 5.19:rc4 | 5.19:rc5
Debian1 product
  • linux< 5.18.14-1

3 vendors · 114 products

References

12 links
Show all 12 references