VulnerabilityPublished 27 May 2026Updated 6 Nov 2026

CVE-2026-45997: Linux kernel · scsi: sd: fix missing put_disk() when device_add(&disk_dev) fails

Affects Linux kernelSource CVE Database V5

Compare

Not known to be exploited · fixed in b64b4f499801b12d0e2785447e4df6c164c608a9 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:34 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in b64b4f499801b12d0e2785447e4df6c164c608a9, a95d38c5701431bfc826e7b18acc0785919d5c88, 262152ec37101f9dc524743ccdbd6c7641d14573 +10

Exploitation evidence

Disclosed: evidence found.
CVE published 27 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected >=4.4.288 <4.5 >=4.9.286 <4.10 >=4.14.250 <4.15 >=4.19.210 <4.20 >=5.4.152 <5.5 >=5.10.72 <5.11 >=5.14.11 <5.15	Fixed in b64b4f499801b12d0e2785447e4df6c164c608a9 a95d38c5701431bfc826e7b18acc0785919d5c88 262152ec37101f9dc524743ccdbd6c7641d14573 13e550fbfccdb311e76ec96892dfe35f0dba0657 5.15 5.11 5.5 4.20 4.15 4.10 4.5 2c2c14b7dfccad8c5a28802849e40c21252e4c28 1e111c4b3a726df1254670a5cc4868cedb946d37
LinuxLinux	Affected =5.15	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: sd: fix missing put_disk() when device_add(&disk_dev) fails If device_add(&sdkp->disk_dev) fails, put_device() runs scsi_disk_release(), which frees the scsi_disk but leaves the gendisk referenced. The device_add_disk() error path in sd_probe() calls put_disk(gd); call put_disk(gd) here to mirror that cleanup.

References

Community reviews

Loading reviews…