Linux Kernel up to 7.3-rc4 HID Alps alps_input_configured use after free

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00+

Summaryinfo

A vulnerability identified as very critical has been detected in Linux Kernel up to 7.3-rc4. This affects the function alps_input_configured of the component HID Alps. Performing a manipulation results in use after free. This vulnerability was named CVE-2026-98501. The attack needs to be approached locally. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Linux Kernel up to 7.3-rc4. This affects the function alps_input_configured of the component HID Alps. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: HID: alps: fix use-after-free on input2 registration failure alps_input_configured() stores data->input2 before calling input_register_device(). If registration fails, input_free_device() frees the input device but data->input2 still points to the freed memory. alps_input_configured() calls hid_hw_open() before allocating input2, so URBs are already active and raw_event can fire during the failure window. A U1_SP_ABSOLUTE_REPORT_ID report arriving then causes u1_raw_event() to dereference the freed data->input2 -> use-after-free. Fix by only storing input2 into drvdata after successful registration and adding a NULL guard in the raw_event path.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-98501 since 09/25/2026. The exploitability is told to be easy. An attack has to be approached locally. 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 10/18/2026).

Upgrading to version 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.55, 7.2.9 or 7.3-rc5 eliminates this vulnerability. Applying the patch 64f824dccfd316fd3db8ea1cc4e8a76ad6a02740/2e55d76e6e8a756f6d87c241de975599f82b02fa/ef8ca5bb4c8b9696f38b1bebce1c851baa02b77b/5a8ad63158165bacd6a1d7420e0fe5364c913b06/47e5e177e9e4e10da6f2759d5ce8d049e33efdc4/925da1d2a24787f24872de13a4680437c54de179/443f6b93442b10b972a16f57ceaaea75b77892b6/d3aba3442798ce4a4c8ce3104d7b286d61e605f9 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
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: Partially
Local: Yes
Remote: No

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 5.10.271/5.15.222/6.1.189/6.6.158/6.12.112/6.18.55/7.2.9/7.3-rc5
Patch: 64f824dccfd316fd3db8ea1cc4e8a76ad6a02740/2e55d76e6e8a756f6d87c241de975599f82b02fa/ef8ca5bb4c8b9696f38b1bebce1c851baa02b77b/5a8ad63158165bacd6a1d7420e0fe5364c913b06/47e5e177e9e4e10da6f2759d5ce8d049e33efdc4/925da1d2a24787f24872de13a4680437c54de179/443f6b93442b10b972a16f57ceaaea75b77892b6/d3aba3442798ce4a4c8ce3104d7b286d61e605f9

Timelineinfo

09/25/2026 CVE reserved
10/18/2026 +23 days Advisory disclosed
10/18/2026 +0 days VulDB entry created
10/18/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-98501 (🔒)
GCVE (CVE): GCVE-0-2026-98501
GCVE (VulDB): GCVE-100-422193

Entryinfo

Created: 10/18/2026 20:57
Changes: 10/18/2026 20:57 (59)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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