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CVE PROGRAM SOURCE RECORDUnscored

CVE-2023-32246

ksmbd: call rcu_barrier() in ksmbd_server_exit()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: call rcu_barrier() in ksmbd_server_exit() racy issue is triggered the bug by racing between closing a connection and rmmod. In ksmbd, rcu_barrier() is not called at module unload time, so nothing prevents ksmbd from getting unloaded while it still has RCU callbacks pending. It leads to trigger unintended execution of kernel code locally and use to defeat protections such as Kernel Lockdown

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

  • e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to < c053e389db0d892e2ff5a60ec5e533b976503795affected
  • e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to < b80422474ffe44cb5e813cd6da1f1c6bc50fd9d2affected
  • e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to < d4174505016a3b2996eb7ff1530dcabbf15d47b6affected
  • e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to < 5a7090ccc242ab009ee7769e9d7fad6644dbe9bdaffected
  • e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to < eb307d09fe15844fdaebeb8cc8c9b9e925430aa5affected

Linux Linux

Default version status: affected

  • 5.15affected
  • 0 to < 5.15unaffected
  • 5.15.111 to ≤ 5.15.*unaffected
  • 6.1.28 to ≤ 6.1.*unaffected
  • 6.2.15 to ≤ 6.2.*unaffected
  • 6.3.2 to ≤ 6.3.*unaffected
  • 6.4 to ≤ *unaffected

References