CVE-2025-68324: scsi: imm: Fix use-after-free bug caused by unfinished delayed work

Deferred
AliasesUBUNTU-CVE-2025-68324DEBIAN-CVE-2025-68324
Published 18-12-2025Last modified 30-10-2026

Vulnerability summary

CVE-2025-68324 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.6% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.23%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 21 · Related 21
OPENSUSE-SU-2025:15836-1OPENSUSE-SU-2026:10301-1SUSE-SU-2026:22108-1SUSE-SU-2026:22137-1SUSE-SU-2026:22433-1SUSE-SU-2026:22458-1

Timeline

  1. 18-12-2025
    PublishedVulnerability first disclosed.
  2. 30-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: imm: Fix use-after-free bug caused by unfinished delayed work The delayed work item 'imm_tq' is initialized in imm_attach() and scheduled via imm_queuecommand() for processing SCSI commands. When the IMM parallel port SCSI host adapter is detached through imm_detach(), the imm_struct device instance is deallocated. However, the delayed work might still be pending or executing when imm_detach() is called, leading to use-after-free bugs when the work function imm_interrupt() accesses the already freed imm_struct memory. The race condition can occur as follows: CPU 0(detach thread) | CPU 1 | imm_queuecommand() | imm_queuecommand_lck() imm_detach() | schedule_delayed_work() kfree(dev) //FREE | imm_interrupt() | dev = container_of(...) //USE dev-> //USE Add disable_delayed_work_sync() in imm_detach() to guarantee proper cancellation of the delayed work item before imm_struct is deallocated.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

Increase +0.04 pp

From 0.19% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu159 products
  • linuxAll versions (No fix recorded) | < 6.17.0-19.19
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.17.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.12.63-1 | < 6.17.13-1
Linux1 product
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < cfd561e8df5f46fc1c9d54885165a60e63831c14 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9a8e53154353580d53f7f86a253927e41294017e | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 31ab2aad7a7b7501e904a09bf361e44671f66092 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 48dd41fa2d6c6a0c50e714deeba06ffe7f91961b | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9e434426cc23ad5e2aad649327b59aea00294b13 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < ab58153ec64fa3fc9aea09ca09dc9322e0b54a7c | 2.6.12

3 vendors · 161 products

References

16 links
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