mm/slab: make __free(kfree) accept error pointers (CVE-2024-36890) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2024-36890

mm/slab: make __free(kfree) accept error pointers

Answer in brief

CVE-2024-36890 records a Unknown severity vulnerability in mm/slab: make __free(kfree) accept error pointers. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 30, 2024Updated Aug 5, 2026Source checked Sep 20, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=af53aaf20722d745a69a051114a1ae237f5b922e <edca32f87329d6e341d2143a3b58ec254e8f6b88 \|\| >=f550466949e822afcd0b546a4fc35795930660bc <946771c2a2b1150f9b7286feadc3aa1e15a1eb16 \|\| >=3c6cc62ce1265aa5623e2e1b29c0fe258bf6e232 <9f6eb0ab4f95240589ee85fd9886a944cd3645b2 \|\| >=54da6a0924311c7cf5015533991e44fb8eb12773 <ac6cf3ce9b7d12acb7b528248df5f87caa25fcdc \|\| >=54da6a0924311c7cf5015533991e44fb8eb12773 <79cbe0be6c0317b215ddd8bd3e32f0afdac48543 \|\| >=54da6a0924311c7cf5015533991e44fb8eb12773 <cd7eb8f83fcf258f71e293f7fc52a70be8ed0128 \|\| >=6.1.79 <6.1.91	edca32f87329d6e341d2143a3b58ec254e8f6b88, 946771c2a2b1150f9b7286feadc3aa1e15a1eb16, 9f6eb0ab4f95240589ee85fd9886a944cd3645b2, ac6cf3ce9b7d12acb7b528248df5f87caa25fcdc, 79cbe0be6c0317b215ddd8bd3e32f0afdac48543, cd7eb8f83fcf258f71e293f7fc52a70be8ed0128, 6.1.91
Linux/Linuxgeneric	6.5	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to edca32f87329d6e341d2143a3b58ec254e8f6b88 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
May 30, 2024
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 5, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: mm/slab: make __free(kfree) accept error pointers Currently, if an automatically freed allocation is an error pointer that will lead to a crash. An example of this is in wm831x_gpio_dbg_show(). 171 char *label __free(kfree) = gpiochip_dup_line_label(chip, i); 172 if (IS_ERR(label)) { 173 dev_err(wm831x->dev, "Failed to duplicate label\n"); 174 continue; 175 } The auto clean up function should check for error pointers as well, otherwise we're going to keep hitting issues like this.

Quoted source text, attributed separately from HOL analysis.