CVE-2026-99019: Linux kernel · scsi: ch: Do not keep references to data transfer element devices
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in ec6ecab1b7577ae555ee6b81480814d123dd9ec0 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:18 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in ec6ecab1b7577ae555ee6b81480814d123dd9ec0, cef2cedb6f7a394b278775b3d6ffb9b20ecd61db, a34a230ccea1b8b667ae59dca11295a2c8f81738 +2
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Oct 2026
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 |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the Linux kernel. Systems should update to a kernel version that includes the fix identified by the commits listed in establishedFacts.fixedVersions. No additional mitigation is required once patched.
Description
A use-after-release reference leak in the Linux kernel's SCSI changer driver (ch) causes device references to persist after device removal. This prevents the release of scsi_device objects, blocking module unload and requiring a reboot to recover.
References
- git.kernel.org/stable/c/ec6ecab1b7577ae555ee6b81480814d123dd9ec0 (opens in a new tab)
- git.kernel.org/stable/c/cef2cedb6f7a394b278775b3d6ffb9b20ecd61db (opens in a new tab)
- git.kernel.org/stable/c/a34a230ccea1b8b667ae59dca11295a2c8f81738 (opens in a new tab)
- git.kernel.org/stable/c/1d35a17f1c2ed4154731895694a1a3557f0da766 (opens in a new tab)
- git.kernel.org/stable/c/27c0f718d3b3c99e6d315308e95d987d0382a8a8 (opens in a new tab)