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CVE-2026-74528

Bluetooth: hci_sync: hold conn in hci_past_sync() callback

HIGH
8
CVSS Score
Published: August 15, 2026 at 12:27 PM UTC
Updated: August 17, 2026 at 06:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8
Exploit prediction
EPSS 0.4%

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_past_sync() callback Avoids giving freed pointers to hci_conn_valid(), which kmalloc may have reused. Hold refcount to avoid that.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.19 ≤ v < 7.1.86.19 ≤ v < 7.26.19d3413703d5f8b7d1e6f514f9440ed5da1bc30796
Vendor states this is fixed in abf9753edf3f88282c44a605f3945d8d4f8dd86c (fixed)
Vendor states this is fixed in e6792adef614b389141b142e30ee549e4a47dd7d (fixed)
Vendor states this is fixed in 6.19 (unaffected)
Vendor states this is fixed in 7.1.8 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://git.kernel.org/stable/c/e6792adef614b389141b142e30ee549e4a47dd7d
Source: cverecord
https://git.kernel.org/stable/c/abf9753edf3f88282c44a605f3945d8d4f8dd86c

CVSS

8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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