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CVE PROGRAM SOURCE RECORD4.7 Medium

CVE-2024-50260

sock_map: fix a NULL pointer dereference in sock_map_link_update_prog()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: sock_map: fix a NULL pointer dereference in sock_map_link_update_prog() The following race condition could trigger a NULL pointer dereference: sock_map_link_detach(): sock_map_link_update_prog(): mutex_lock(&sockmap_mutex); ... sockmap_link->map = NULL; mutex_unlock(&sockmap_mutex); mutex_lock(&sockmap_mutex); ... sock_map_prog_link_lookup(sockmap_link->map); mutex_unlock(&sockmap_mutex); <continue> Fix it by adding a NULL pointer check. In this specific case, it makes no sense to update a link which is being released.

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

  • 699c23f02c65cbfc3e638f14ce0d70c23a2e1f02 to < 9afe35fdda16e09d5bd3c49a68ba8c680dd678bdaffected
  • 699c23f02c65cbfc3e638f14ce0d70c23a2e1f02 to < 740be3b9a6d73336f8c7d540842d0831dc7a808baffected

Linux Linux

Default version status: affected

  • 6.10affected
  • 0 to < 6.10unaffected
  • 6.11.7 to ≤ 6.11.*unaffected
  • 6.12 to ≤ *unaffected

References