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CVE-2026-98973

drm/bridge: Fix unlocked list_del in drm_bridge_add()

Published
2026-10-23
Last modified
2026-10-23
CNA
Linux
NVD status
Received
CVSS v3.1 (listed by NVD)
—
Not scored
CVSS v4.0 (listed by NVD)
—
Not scored
CVSS (listed by CVE.org)
—
Not scored
EPSS exploit probability
0.2%
Percentile 9.0%
as of 2026-10-24
CISA KEV
—
Not listed

Description

NVD

In the Linux kernel, the following vulnerability has been resolved: drm/bridge: Fix unlocked list_del in drm_bridge_add() When re-adding a bridge that was previously removed, drm_bridge_add() drops it from bridge_lingering_list without holding bridge_lock. Both bridge_list and bridge_lingering_list are protected by bridge_lock, as they are concurrently modified by drm_bridge_remove() and __drm_bridge_free(), and walked by the debugfs 'bridges' file. Running the list_empty() test and the list_del_init() outside of the lock may therefore corrupt either list. Perform both under bridge_lock.

Affected products and packages

CNA (CVE.org)

VendorProductVersions
LinuxLinux
affected: 17805a15d1751f5d6bb06f924f9bed216feb8db7 … < f469d850854101eae60dd4080244f114a9bcf2b5
affected: 17805a15d1751f5d6bb06f924f9bed216feb8db7 … < b62e3db8cdc1680e1c3390591e872f485148541a
default: unaffected
LinuxLinux
affected: 6.19
unaffected: 0 … < 6.19
unaffected: 7.2.11 … <= 7.2.*
unaffected: 7.3 … <= *
default: affected

Open-source packages (GitHub Advisory / OSV)

drm/bridge: Fix unlocked list_del in drm_bridge_add()

EcosystemPackageAffected versionsFixed in
>= 17805a15d1751f5d6bb06f924f9bed216feb8db7, < f469d850854101eae60dd4080244f114a9bcf2b5; < b62e3db8cdc1680e1c3390591e872f485148541af469d850854101eae60dd4080244f114a9bcf2b5, b62e3db8cdc1680e1c3390591e872f485148541a
LinuxKernel>= 6.19.0, < 7.2.117.2.11

Linux distribution status

Red Hat ↗

No record

Debian ↗

ReleasePackageStatusFixed version / notes
bookwormlinuxnot-affected unimportant
forkylinuxresolved not yet assigned7.2.11-1
sidlinuxresolved not yet assigned7.2.11-1
trixielinuxnot-affected unimportant

Ubuntu ↗

No record

References (5)