VulnerabilityPublished 18 Oct 2026Updated 21 Oct 2026

CVE-2026-98780: Linux kernel · drm/amdgpu: fix IP instance memory leak on kobject add failure

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f6364e7284a131556f5d763d867147bece2843a8 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:07 UTC

Severity

Unrated

Rated by Threat Radar · 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 f6364e7284a131556f5d763d867147bece2843a8, f5a5add3605935163dd0f75749b6a7869e9765af, c05bbcc263d67b8b158e2a52be7e3005895969d1 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 18 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.

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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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 ≥ a6c40b178092f41b9d6cc8615697c14b1e5a1c3a, < f6364e7284a131556f5d763d867147bece2843a8	Fixed in f6364e7284a131556f5d763d867147bece2843a8
LinuxLinux	Affected ≥ a6c40b178092f41b9d6cc8615697c14b1e5a1c3a, < f5a5add3605935163dd0f75749b6a7869e9765af	Fixed in f5a5add3605935163dd0f75749b6a7869e9765af
LinuxLinux	Affected ≥ a6c40b178092f41b9d6cc8615697c14b1e5a1c3a, < c05bbcc263d67b8b158e2a52be7e3005895969d1	Fixed in c05bbcc263d67b8b158e2a52be7e3005895969d1
LinuxLinux	Affected ≥ a6c40b178092f41b9d6cc8615697c14b1e5a1c3a, < 0563b26c1437fe7e25ea42c334eb85c0a703f8ff	Fixed in 0563b26c1437fe7e25ea42c334eb85c0a703f8ff
LinuxLinux	Affected ≥ a6c40b178092f41b9d6cc8615697c14b1e5a1c3a, < 7ca44cb14d0249992a8f1425ba004d6e2d16d255	Fixed in 7ca44cb14d0249992a8f1425ba004d6e2d16d255
LinuxLinux	Affected =5.18	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix IP instance memory leak on kobject add failure amdgpu_discovery_sysfs_ips() allocates ip_hw_instance with kzalloc_flex() and initializes its embedded kobject before calling kobject_add(). If kobject_add() fails, the return value is ignored and execution continues without dropping the initial kobject reference. The failed kobject is not retained in the kset list, so the normal sysfs teardown path cannot find it. As a result, ip_hw_instance_release() is never called and the ip_hw_instance allocation is leaked. Call kobject_put() when kobject_add() fails so the initial reference is dropped and ip_hw_instance_release() can free the allocation. Keep the existing best-effort sysfs behavior by continuing with the remaining IP entries after the failed registration. The issue was identified by a static analysis tool I developed and confirmed by manual review. (cherry picked from commit 5c75fbcca8af1096d8d9415b91d8ea6212c22ee1)

References

Community reviews

Loading reviews…