Linux Kernel up to 6.18.52 Sienna Cichlid Driver si.c race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.41-

Summaryinfo

A vulnerability classified as very critical has been found in Linux Kernel up to 6.18.52. This affects an unknown part of the file si.c of the component Sienna Cichlid Driver. The manipulation leads to race condition. This vulnerability is traded as CVE-2026-98898. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.18.52 and classified as very critical. This issue affects some unknown processing of the file si.c of the component Sienna Cichlid Driver. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm/si: Don't schedule thermal work when queue isn't initialized When DPM is turned off with the amdgpu.dpm=0 module parameter, the thermal work queue isn't initialized so we shouldn't schedule any work on it. (cherry picked from commit bd018d36171a695952c6d391471c279c9e05c8b2)

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2026-98898 since 09/25/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/23/2026).

Upgrading to version 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111 or 6.18.53 eliminates this vulnerability. Applying the patch 2c08ae91df3cf11d517dc1273195f7b1df2a0ddb/7987c5abdf537663b0957de521edefe77ae12842/8c9e7265b3379eb2ce1758b73c4ffa2606ae2256/2750f52b58d92ca52a5496c00db8abf925103a27/ac0250da54afb519fab98478e2e1d9e51d4737fd/52c4c623474df0e19efa158057966f2a149bda28/f8922d5a946699fc2bdc7660e6778bd6726bf8b8 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-108854). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.271/5.15.222/6.1.189/6.6.158/6.12.111/6.18.53
Patch: 2c08ae91df3cf11d517dc1273195f7b1df2a0ddb/7987c5abdf537663b0957de521edefe77ae12842/8c9e7265b3379eb2ce1758b73c4ffa2606ae2256/2750f52b58d92ca52a5496c00db8abf925103a27/ac0250da54afb519fab98478e2e1d9e51d4737fd/52c4c623474df0e19efa158057966f2a149bda28/f8922d5a946699fc2bdc7660e6778bd6726bf8b8

Timelineinfo

09/25/2026 CVE reserved
10/23/2026 +28 days Advisory disclosed
10/23/2026 +0 days VulDB entry created
10/23/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-98898 (🔒)
GCVE (CVE): GCVE-0-2026-98898
GCVE (VulDB): GCVE-100-425669
EUVD: 🔒

Entryinfo

Created: 10/23/2026 14:24
Updated: 10/23/2026 15:59
Changes: 10/23/2026 14:24 (59), 10/23/2026 15:59 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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