Linux Kernel up to 7.2-rc1 irqchip irq-ts4800.c irq_set_chained_handler_and_data/ts4800_ic_remove parent_irq use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$5k-$25k1.50-

Summaryinfo

A vulnerability classified as very critical was found in Linux Kernel up to 7.2-rc1. Affected by this issue is the function irq_set_chained_handler_and_data/ts4800_ic_remove of the file drivers/irqchip/irq-ts4800.c of the component irqchip. Executing a manipulation of the argument parent_irq can lead to use after free. The identification of this vulnerability is CVE-2026-72384. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as very critical was found in Linux Kernel up to 7.2-rc1. This vulnerability affects the function irq_set_chained_handler_and_data/ts4800_ic_remove of the file drivers/irqchip/irq-ts4800.c of the component irqchip. The manipulation of the argument parent_irq with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: irqchip/ts4800: Fix missing chained handler cleanup on remove The driver installs a chained handler for the parent interrupt during probe using irq_set_chained_handler_and_data(), but the remove function does not clear this handler. This leaves a dangling handler that may be called when the parent interrupt fires after the driver has been removed, potentially accessing freed memory and causing a kernel crash. Additionally, the parent_irq obtained via irq_of_parse_and_map() is not stored, making it inaccessible in the remove function. Moreover, interrupt mappings created during probe are not properly disposed. Fix this by: - Saving parent_irq in probe - Clearing the chained handler with NULL in ts4800_ic_remove() - Disposing all IRQ mappings before domain removal to prevent resource leaks

The advisory is available at git.kernel.org. This vulnerability was named CVE-2026-72384 since 08/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 08/15/2026).

Upgrading to version 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5 or 7.2-rc2 eliminates this vulnerability. Applying the patch b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c/e6b674dc341c6add7d85bec2ec22caf1aad35795/3f31f49afffa169cd01e6c37568c4df3eb1051af/4e8d498d32b6c67d73bb8b317ff316ff37897a3e/9ed0dca2aa05908b33ecf0bb15c7953947529542/98bf7e54cec07d514b3575c11896a8b12d50ecc4 is able to eliminate this problem.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

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Name

Version

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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: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

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 6.1.178/6.6.145/6.12.97/6.18.40/7.1.5/7.2-rc2
Patch: b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c/e6b674dc341c6add7d85bec2ec22caf1aad35795/3f31f49afffa169cd01e6c37568c4df3eb1051af/4e8d498d32b6c67d73bb8b317ff316ff37897a3e/9ed0dca2aa05908b33ecf0bb15c7953947529542/98bf7e54cec07d514b3575c11896a8b12d50ecc4

Timelineinfo

08/09/2026 CVE reserved
08/15/2026 +6 days Advisory disclosed
08/15/2026 +0 days VulDB entry created
08/15/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-72384 (🔒)
GCVE (CVE): GCVE-0-2026-72384
GCVE (VulDB): GCVE-100-390754

Entryinfo

Created: 08/15/2026 14:45
Changes: 08/15/2026 14:45 (61)
Complete: 🔍
Cache ID: 216::103

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