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CVE-2026-98293— Bluetooth: ISO: Fix parent socket leak in iso_conn_ready()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已解决以下漏洞： 蓝牙（Bluetooth）：ISO：修复 iso_conn_ready() 中的父套接字泄漏问题 iso_get_sock() 返回被持有引用的父套接字，该引用会在子套接字设置完成后由 sock_put() 释放。当 iso_sock_alloc() 失败时所走的路径（错误路径）仅调用 release_sock() 并返回，导致引用泄漏，进而造成父套接字本身泄漏。 在该路径上也应释放该引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.18% · P6

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 13

VendorProduct Version RangeStatus
Linux Linux 11dc486ed5d4626e6b92a23b67ed76cb6c48bfc9< ea8a262662be62c095789924c11722ecbf40a4de affected
fa224d0c094a458e9ebf5ea9b1c696136b7af427< 9228f87365e68a6cae191f57f456e89a6d2167cf affected
fa224d0c094a458e9ebf5ea9b1c696136b7af427< e2b156a8d25966be49c1f809b654a2c4bb16564d affected
fa224d0c094a458e9ebf5ea9b1c696136b7af427< f016daabd4fec4e9b8563f8b6f42eabce0ca66b0 affected
fa224d0c094a458e9ebf5ea9b1c696136b7af427< ca18ee413a7cb6f09885778039225e58bae0d607 affected
6.6.67< 6.6.158 affected
6.8 affected
< 6.8 unaffected
… +5 more rows
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I. Basic Information for CVE-2026-98293

Vulnerability Information
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Vulnerability Title
Bluetooth: ISO: Fix parent socket leak in iso_conn_ready()
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 11dc486ed5d4626e6b92a23b67ed76cb6c48bfc9 ~ ea8a262662be62c095789924c11722ecbf40a4de -
Linux Linux 6.8 -

II. Public POCs for CVE-2026-98293

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III. Intelligence Information for CVE-2026-98293

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Patches & Fixes for CVE-2026-98293 (5)

Same Patch Batch · Linux · 2026-10-06 · 208 CVEs total

CVE-2026-98323 9.8 CRITICAL RDMA/siw: Bound fragmented header copies by the remaining length
CVE-2026-98365 9.8 CRITICAL RDMA/rxe: Fix integer overflow in mr_check_range() leading to OOB access
CVE-2026-98282 8.8 HIGH powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba
CVE-2026-98283 8.8 HIGH KVM: PPC: Book3S HV: fix use-after-free in kvmhv_emulate_tlbie_all_lpid()
CVE-2026-98339 8.8 HIGH wifi: cfg80211: don't filter by BSS type when removing stale entries
CVE-2026-98171 8.8 HIGH smb: client: fix next_buffer UAF and NextCommand bounds in compound PDUs
CVE-2026-98261 8.1 HIGH cifs: Fix server use-after-free in cifs_chan_skip_or_disable()
CVE-2026-98357 8.1 HIGH IB/isert: wait for deferred control PDU completions before releasing the connection
CVE-2026-98239 8.1 HIGH net: lan743x: fix RX checksum use-after-free
CVE-2026-98305 7.8 HIGH net: dsa: mxl862xx: disable the stats poll on teardown
CVE-2026-98341 7.8 HIGH wifi: cfg80211: don't free driver-owned scan requests
CVE-2026-98320 7.8 HIGH netfilter: flowtable: hold reference on ct until flow is released
CVE-2026-98228 7.8 HIGH mips: select CONFIG_WEAK_REORDERING_BEYOND_LLSC from CONFIG_EYEQ
CVE-2026-98229 7.8 HIGH xfrm: save input state data before secpath resets
CVE-2026-98318 7.8 HIGH smb: client: validate absolute native symlink targets before NT fixups
CVE-2026-98315 7.8 HIGH ntfs: protect runlist updates with the runlist lock
CVE-2026-98260 7.8 HIGH exec: Cleanup POSIX timers right after de_thread()
CVE-2026-98256 7.8 HIGH signal: Prevent exec() race
CVE-2026-98258 7.8 HIGH posix-cpu-timers: Prevent freeing a timer which is queued on the expiry list
CVE-2026-98254 7.8 HIGH swiotlb: use the adjusted address for the highmem page lookup

Showing top 20 of 208 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98293

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