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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98018

net: mctp: i3c: serialize probe with bus removal

Description

In the Linux kernel, the following vulnerability has been resolved: net: mctp: i3c: serialize probe with bus removal mctp_i3c_probe() drops busdevs_lock after finding the matching bus. A concurrent I3C_NOTIFY_BUS_REMOVE can then unregister and free the bus netdev before probe passes its private data to mctp_i3c_add_device(). The latter consequently adds a list node through a freed mbus pointer. Keep busdevs_lock held until the device has been added. This also satisfies the __must_hold annotation on mctp_i3c_add_device().

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

  • c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 to < e6541b2747682fdb2c6ded4a7cf7c39c4067a35caffected
  • c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 to < 765c5e357e67916a7aac8ead4ac2fa7d2bffe000affected
  • c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 to < 906d8dbafabfa81a30e3ade420cb9912f223a5e1affected
  • c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 to < 2b4707a149a55e8fa75c9ef32b359d60f470a566affected

Linux Linux

Default version status: affected

  • 6.7affected
  • 0 to < 6.7unaffected
  • 6.12.111 to ≤ 6.12.*unaffected
  • 6.18.53 to ≤ 6.18.*unaffected
  • 7.2.7 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References