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-$25k0.00

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. Upgrading the affected component is advised.

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. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

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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

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

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