High

CVE-2026-98501 — HID: alps: fix use-after-free on input2 registration failure

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.

Published Oct 18, 2026 · Updated Oct 24, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.3% (30-day exploitation probability)+3
Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.26%

ahead of 18% of scored CVEs · Oct 30, 2026

Affects

Linux

CVSS base

7.1

High · 2 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Exploitation requires user interaction: tighten email/web filtering and warn affected users.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ 2562756dde550901c224e3805102bdfc17e7d13a and < 64f824dccfd316fd3db8ea1cc4e8a76ad6a02740≥ 2562756dde550901c224e3805102bdfc17e7d13a and < 2e55d76e6e8a756f6d87c241de975599f82b02fa≥ 2562756dde550901c224e3805102bdfc17e7d13a and < ef8ca5bb4c8b9696f38b1bebce1c851baa02b77b≥ 2562756dde550901c224e3805102bdfc17e7d13a and < 5a8ad63158165bacd6a1d7420e0fe5364c913b06≥ 2562756dde550901c224e3805102bdfc17e7d13a and < 47e5e177e9e4e10da6f2759d5ce8d049e33efdc4≥ 2562756dde550901c224e3805102bdfc17e7d13a and < 925da1d2a24787f24872de13a4680437c54de179≥ 2562756dde550901c224e3805102bdfc17e7d13a and < 443f6b93442b10b972a16f57ceaaea75b77892b6≥ 2562756dde550901c224e3805102bdfc17e7d13a and < d3aba3442798ce4a4c8ce3104d7b286d61e605f9 and 1 more version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Adjacent

Attack complexity

High

Privileges required

None

User interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
7.1	CVSS 3.1	High	1.2	5.9	416baaa9-dc9f-4396-8d5f-8c081fb06d67 via NIST National Vulnerability Database
7.1	CVSS 3.1	High	—	—	Linux via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H (score shown at the top: 416baaa9-dc9f-4396-8d5f-8c081fb06d67)

EPSS over time FIRST

Oct 19, 2026 → Oct 30, 2026 · 12 reading(s) · max 0.26%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
CVSS changed · 7.1
Oct 24, 2026 · NIST National Vulnerability Database
Record published
Oct 18, 2026
Affected products added · linux/linux
Oct 18, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 18, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 18, 2026 · NIST National Vulnerability Database
CVE published
Oct 18, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× References added · Oct 19, 2026 – Oct 19, 2026
1× Official description updated · Oct 18, 2026 – Oct 18, 2026

References

10 on the record

git.kernel.org/stable/c/5a8ad63158165bacd6a1d7420e0fe5364c913b06
NIST National Vulnerability Database
git.kernel.org/stable/c/ef8ca5bb4c8b9696f38b1bebce1c851baa02b77b
NIST National Vulnerability Database
nvd.nist.gov/vuln/detail/CVE-2026-98501
GitHub Security Advisories
git.kernel.org/stable/c/d3aba3442798ce4a4c8ce3104d7b286d61e605f9
NIST National Vulnerability Database
github.com/advisories/GHSA-56g2-px47-cfcj
GitHub Security Advisories
git.kernel.org/stable/c/47e5e177e9e4e10da6f2759d5ce8d049e33efdc4
NIST National Vulnerability Database
git.kernel.org/stable/c/925da1d2a24787f24872de13a4680437c54de179
NIST National Vulnerability Database
git.kernel.org/stable/c/64f824dccfd316fd3db8ea1cc4e8a76ad6a02740
NIST National Vulnerability Database
git.kernel.org/stable/c/443f6b93442b10b972a16f57ceaaea75b77892b6
NIST National Vulnerability Database
git.kernel.org/stable/c/2e55d76e6e8a756f6d87c241de975599f82b02fa
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

High CVE-2026-99216 Drivers: hv: Don't reset VMBus connection state on error/exit paths 3d
Unknown CVE-2026-99215 power: supply: core: prevent unregistering a power supply while a callback runs 3d
Unknown CVE-2026-99207 scsi: target: Disable interrupts while holding delayed_cmd_lock 3d
Unknown CVE-2026-99208 drm/xe/oa: Zero OA buffer at allocation 3d
Unknown CVE-2026-99209 drm/xe: skip eviction of a BO with no resource 3d
Unknown CVE-2026-99210 accel/rocket: clear rdev on device init failure 3d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-98501 is "HID: alps: fix use-after-free on input2 registration failure", rated High. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.1 describes technical severity. EPSS 0.26% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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