CVE-2025-68324: Linux kernel · scsi: imm: Fix use-after-free bug caused by unfinished delayed work
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 6.17.0-1009.9~24.04.2 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 10:12 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.17.0-1009.9~24.04.2, 6.17.0-1010.10~24.04.1, 6.17.0-1009.9~24.04.3 +11
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 25.10linuxpkg:deb/ubuntu/linux@6.17.0-19.19?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws@6.17.0-1009.9?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure@6.17.0-1010.10?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde@6.17.0-1017.17?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp@6.17.0-1009.9?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 25.10linux-oraclepkg:deb/ubuntu/linux-oracle@6.17.0-1009.9?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available and should be applied to affected Linux kernel versions. The fix ensures proper cancellation of delayed work items before device memory is freed, preventing the use-after-free condition. Users should update to the fixed kernel versions as provided by their Linux distribution vendors, such as the Ubuntu security notice USN-8094-1. No additional mitigation steps are indicated.
Description
A use-after-free vulnerability in the Linux kernel's SCSI IMM driver was fixed. The issue arises when a delayed work item accesses memory after the associated device structure has been freed during device detachment. This race condition could lead to kernel memory corruption. The vulnerability affects multiple Linux kernel versions prior to 6.17.0-19.19~24.04.2 and similar builds. A patch is available that properly cancels the delayed work before freeing memory. No known exploits are reported in the wild.
References
- ubuntu.com/security/CVE-2025-68324 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-68324 (opens in a new tab)
- git.kernel.org/linus/ab58153ec64fa3fc9aea09ca09dc9322e0b54a7c (opens in a new tab)
- git.kernel.org/stable/c/31ab2aad7a7b7501e904a09bf361e44671f66092 (opens in a new tab)
- git.kernel.org/stable/c/48dd41fa2d6c6a0c50e714deeba06ffe7f91961b (opens in a new tab)
- git.kernel.org/stable/c/9e434426cc23ad5e2aad649327b59aea00294b13 (opens in a new tab)
- git.kernel.org/stable/c/ab58153ec64fa3fc9aea09ca09dc9322e0b54a7c (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8094-5 (opens in a new tab)
- ubuntu.com/security/notices/USN-8152-1 (opens in a new tab)