In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: ISO: fix malformed ISO_END/CONT handling

Core specification (Part C vol 4 sec 5.4.5) does not exclude empty
ISO_CONT, ISO_END packets. We currently reject them if they are last.

If controller sends malformed sequence

ISO_START -> rx_len = 4, ISO_CONT skb->len 4, ISO_START

that ends payload in ISO_CONT, we leak conn->rx_skb. If controller sends
too long ISO_END, we panic on skb_put. If controller sends too short
ISO_END we accept it.

Fix by marking unfinished ISO_START via conn->rx_skb != NULL. Check
skb->len properly before skb_put. Combine the ISO_CONT/END code paths
as they require the same initial checks. Reject too short ISO_END
packets.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
ccf74f2390d60a2f9a75ef496d2564abb478f46a affected < 990e65eb9387c4ddfa7f68782b6644c2c35d489f
ccf74f2390d60a2f9a75ef496d2564abb478f46a affected < e054c1a6ae7310d2815778fddb87da616e11c255
Linux Linux affected
Version Status Constraints
6.0 affected —
0 unaffected < 6.0
7.1.5 unaffected ≤ 7.1.*
7.2-rc3 unaffected ≤ *

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References
Link Providers
https://git.kernel.org/stable/c/990e65eb9387c4ddfa7f68782b6644c2c35d489f cve-icon cve-icon
https://git.kernel.org/stable/c/e054c1a6ae7310d2815778fddb87da616e11c255 cve-icon cve-icon
History

Sat, 15 Aug 2026 11:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120
CWE-170

Sat, 15 Aug 2026 06:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix malformed ISO_END/CONT handling Core specification (Part C vol 4 sec 5.4.5) does not exclude empty ISO_CONT, ISO_END packets. We currently reject them if they are last. If controller sends malformed sequence ISO_START -> rx_len = 4, ISO_CONT skb->len 4, ISO_START that ends payload in ISO_CONT, we leak conn->rx_skb. If controller sends too long ISO_END, we panic on skb_put. If controller sends too short ISO_END we accept it. Fix by marking unfinished ISO_START via conn->rx_skb != NULL. Check skb->len properly before skb_put. Combine the ISO_CONT/END code paths as they require the same initial checks. Reject too short ISO_END packets.
Title Bluetooth: ISO: fix malformed ISO_END/CONT handling
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-15T05:55:43.160Z

Reserved: 2026-08-09T03:40:39.920Z

Link: CVE-2026-72334

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:22:06.580

Modified: 2026-08-15T06:22:06.580

Link: CVE-2026-72334

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-15T11:00:05Z

Weaknesses