5.5

CVE-2025-21662: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2025-21662DEBIAN-CVE-2025-21662
Published 21-01-2025Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2025-21662 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.8% 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
0.20%
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 26 · Related 24
DLA-4076-1DSA-5860-1MGASA-2025-0030MGASA-2025-0032SUSE-SU-2025:0289-1SUSE-SU-2025:0428-1

Timeline

  1. 21-01-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix variable not being completed when function returns When cmd_alloc_index(), fails cmd_work_handler() needs to complete ent->slotted before returning early. Otherwise the task which issued the command may hang: mlx5_core 0000:01:00.0: cmd_work_handler:877:(pid 3880418): failed to allocate command entry INFO: task kworker/13:2:4055883 blocked for more than 120 seconds. Not tainted 4.19.90-25.44.v2101.ky10.aarch64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/13:2 D 0 4055883 2 0x00000228 Workqueue: events mlx5e_tx_dim_work [mlx5_core] Call trace: __switch_to+0xe8/0x150 __schedule+0x2a8/0x9b8 schedule+0x2c/0x88 schedule_timeout+0x204/0x478 wait_for_common+0x154/0x250 wait_for_completion+0x28/0x38 cmd_exec+0x7a0/0xa00 [mlx5_core] mlx5_cmd_exec+0x54/0x80 [mlx5_core] mlx5_core_modify_cq+0x6c/0x80 [mlx5_core] mlx5_core_modify_cq_moderation+0xa0/0xb8 [mlx5_core] mlx5e_tx_dim_work+0x54/0x68 [mlx5_core] process_one_work+0x1b0/0x448 worker_thread+0x54/0x468 kthread+0x134/0x138 ret_from_fork+0x10/0x18

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.20% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.20%

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

Ubuntu104 products
  • linux< 6.8.0-60.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1029.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 4baae687a20ef2b82fde12de3c04461e6f2521d6, < f0a2808767ac39f64b1d9a0ff865c255073cf3d4 | ≥ f9caccdd42e999b74303c9b0643300073ed5d319, < 229cc10284373fbe754e623b7033dca7e7470ec8 | ≥ 485d65e1357123a697c591a5aeb773994b247ad7, < 36124081f6ffd9dfaad48830bdf106bb82a9457d | ≥ 485d65e1357123a697c591a5aeb773994b247ad7, < 0e2909c6bec9048f49d0c8e16887c63b50b14647 | 2d0962d05c93de391ce85f6e764df895f47c8918 | 94024332a129c6e4275569d85c0c1bfb2ae2d71b | ≥ 6.1.93, < 6.1.125 | ≥ 6.6.33, < 6.6.72 | ≥ 6.8.12, < 6.9 | ≥ 6.9.3, < 6.10 | 6.10
  • linux_kernel≥ 6.1.93, < 6.1.125 | ≥ 6.6.33, < 6.6.72 | ≥ 6.8.12, < 6.9 | ≥ 6.9.3, < 6.12.10 | 6.13:rc1 | 6.13:rc2 | 6.13:rc3 | 6.13:rc4 | 6.13:rc5 | 6.13:rc6
Debian1 product
  • linux< 6.1.128-1 | < 6.12.10-1

3 vendors · 107 products

References

25 links
Show all 25 references