Bug 2562742 (CVE-2026-99190)

Summary: CVE-2026-99190 kernel: gpiolib: fix memory leak in gpiod_set_array_value_complex() on error paths
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's GPIO (General Purpose Input/Output) subsystem. When an operation setting multiple GPIO values encounters an error, the function exits early without releasing previously allocated memory buffers. A local user could trigger this error condition to cause a memory leak, potentially leading to system resource exhaustion and a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-10-28 11:01:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

gpiolib: fix memory leak in gpiod_set_array_value_complex() on error paths

A drive-by review by Sashiko reports that, after a failed call to
gpiochip_set_multiple(), gpiod_set_array_value() returns abruptly,
bypassing the freeing of possibly alloced bitmaps, potentially leaking
memory. It is an unlikely error path, but is possible.

Defer the return code check until after the bitmap_free() block.
Comment 1 gkamathe 2026-10-29 07:54:51 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99190.mbox