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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-23221

bus: fsl-mc: fix use-after-free in driver_override_show()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: fix use-after-free in driver_override_show() The driver_override_show() function reads the driver_override string without holding the device_lock. However, driver_override_store() uses driver_set_override(), which modifies and frees the string while holding the device_lock. This can result in a concurrent use-after-free if the string is freed by the store function while being read by the show function. Fix this by holding the device_lock around the read operation.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d to < c71dfb7833db7af652ee8f65011f14c97c47405daffected
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d to < c424e72cfa67e7e1477035058a8a659f2c0ea637affected
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d to < b1983840287303e0dfb401b1b6cecc5ea7471e90affected
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d to < dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227affected
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d to < 1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0affected
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d to < a2ae33e1c6361e960a4d00f7cf75d880b54f9528affected
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d to < 148891e95014b5dc5878acefa57f1940c281c431affected

Linux Linux

Default version status: affected

  • 5.10affected
  • 0 to < 5.10unaffected
  • 5.15.201 to ≤ 5.15.*unaffected
  • 6.1.164 to ≤ 6.1.*unaffected
  • 6.6.127 to ≤ 6.6.*unaffected
  • 6.12.74 to ≤ 6.12.*unaffected
  • 6.18.11 to ≤ 6.18.*unaffected
  • 6.19.1 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References