Bug 2546377 (CVE-2026-98293)

Summary: CVE-2026-98293 kernel: Bluetooth: ISO: Fix parent socket leak in iso_conn_ready()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
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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A flaw was found in the Linux kernel's Bluetooth subsystem. This flaw allows a local user or adjacent attacker to cause a Denial of Service (DoS) by triggering a resource leak. When handling Bluetooth Isochronous (ISO) connections, the kernel fails to release a reference to the parent socket if child socket allocation fails. Over time, repeated failures cause kernel memory to remain allocated, potentially leading to system resource exhaustion.
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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 2026-10-06 09:09:02 UTC 
In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: ISO: Fix parent socket leak in iso_conn_ready()

iso_get_sock() returns the parent socket with a reference held, which is
dropped by sock_put() once the child socket has been set up. The error
path taken when iso_sock_alloc() fails only calls release_sock() and
returns, leaking the reference and thus the parent socket itself.

Drop the reference on that path as well.
Comment 1 gkamathe 2026-10-11 02:20:28 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98293.mbox