5.5

CVE-2025-21668: linux Infinite Loop

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2025-21668DEBIAN-CVE-2025-21668
Published 31-01-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-21668 is a medium (CVSS 5.5) Infinite Loop vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.2% 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
0.22%
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 21 · Related 18
DLA-4076-1DSA-5860-1RHSA-2025:6966SUSE-SU-2025:0564-1SUSE-SU-2025:0847-1SUSE-SU-2025:0856-1

Timeline

  1. 31-01-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: pmdomain: imx8mp-blk-ctrl: add missing loop break condition Currently imx8mp_blk_ctrl_remove() will continue the for loop until an out-of-bounds exception occurs. pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : dev_pm_domain_detach+0x8/0x48 lr : imx8mp_blk_ctrl_shutdown+0x58/0x90 sp : ffffffc084f8bbf0 x29: ffffffc084f8bbf0 x28: ffffff80daf32ac0 x27: 0000000000000000 x26: ffffffc081658d78 x25: 0000000000000001 x24: ffffffc08201b028 x23: ffffff80d0db9490 x22: ffffffc082340a78 x21: 00000000000005b0 x20: ffffff80d19bc180 x19: 000000000000000a x18: ffffffffffffffff x17: ffffffc080a39e08 x16: ffffffc080a39c98 x15: 4f435f464f006c72 x14: 0000000000000004 x13: ffffff80d0172110 x12: 0000000000000000 x11: ffffff80d0537740 x10: ffffff80d05376c0 x9 : ffffffc0808ed2d8 x8 : ffffffc084f8bab0 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffffff80d19b9420 x4 : fffffffe03466e60 x3 : 0000000080800077 x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: dev_pm_domain_detach+0x8/0x48 platform_shutdown+0x2c/0x48 device_shutdown+0x158/0x268 kernel_restart_prepare+0x40/0x58 kernel_kexec+0x58/0xe8 __do_sys_reboot+0x198/0x258 __arm64_sys_reboot+0x2c/0x40 invoke_syscall+0x5c/0x138 el0_svc_common.constprop.0+0x48/0xf0 do_el0_svc+0x24/0x38 el0_svc+0x38/0xc8 el0t_64_sync_handler+0x120/0x130 el0t_64_sync+0x190/0x198 Code: 8128c2d0 ffffffc0 aa1e03e9 d503201f

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.22%

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

Ubuntu106 products
  • linux< 6.8.0-62.65
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1030.32
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 556f5cf9568af772d494cff24ffaa7ea41e1ab40, < 699cc10cc3068f9097a506eae7fe178c860dca4e | ≥ 556f5cf9568af772d494cff24ffaa7ea41e1ab40, < 926ad31b76b8e229b412536e77cdf828a5cae9c6 | ≥ 556f5cf9568af772d494cff24ffaa7ea41e1ab40, < 488a68c948bc52dc2a4554a56fdd99aa67c49b06 | ≥ 556f5cf9568af772d494cff24ffaa7ea41e1ab40, < 726efa92e02b460811e8bc6990dd742f03b645ea | 5.19
  • linux_kernel≥ 5.19, < 6.1.127 | ≥ 6.2, < 6.6.74 | ≥ 6.7, < 6.12.11 | 6.13:rc1 | 6.13:rc2 | 6.13:rc3 | 6.13:rc4 | 6.13:rc5 | 6.13:rc6 | 6.13:rc7
Debian1 product
  • linux< 6.1.128-1 | < 6.12.11-1

3 vendors · 109 products

References

19 links
Show all 19 references