CVE-2026-31527 (GCVE-0-2026-31527)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-04-22 13:54
VLAI?
Title
driver core: platform: use generic driver_override infrastructure
Summary
In the Linux kernel, the following vulnerability has been resolved: driver core: platform: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3d713e0e382e6fcfb4bba1501645b66c129ad60b , < 9a6086d2a828dd2ff74cf9abcae456670febd71f (git)
Affected: 3d713e0e382e6fcfb4bba1501645b66c129ad60b , < 7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1 (git)
Affected: 3d713e0e382e6fcfb4bba1501645b66c129ad60b , < edee7ee5a14c3b33f6d54641f5af5c5e9180992d (git)
Affected: 3d713e0e382e6fcfb4bba1501645b66c129ad60b , < 2b38efc05bf7a8568ec74bfffea0f5cfa62bc01d (git)
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    Linux Linux Affected: 3.17
Unaffected: 0 , < 3.17 (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.21 , ≤ 6.18.* (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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            "drivers/base/platform.c",
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            "include/linux/platform_device.h",
            "sound/soc/samsung/i2s.c"
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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