CVE-2023-53398

Summary

In the Linux kernel, the following vulnerability has been resolved:

mlx5: fix possible ptp queue fifo use-after-free

Fifo indexes are not checked during pop operations and it leads to potential use-after-free when poping from empty queue. Such case was possible during re-sync action. WARN_ON_ONCE covers future cases.

There were out-of-order cqe spotted which lead to drain of the queue and use-after-free because of lack of fifo pointers check. Special check and counter are added to avoid resync operation if SKB could not exist in the fifo because of OOO cqe (skb_id must be between consumer and producer index).

Affected Software

VendorProductVersion RangeStatus
LinuxLinux58a518948f60153e8f6cb8361d2712aa3a1af94a < 52e6e7a0bc04c85012a9251c7cf2d444a77eb966affected
LinuxLinux58a518948f60153e8f6cb8361d2712aa3a1af94a < 6afdedc4e66e3846ce497744f01b95c34bf39d21affected
LinuxLinux58a518948f60153e8f6cb8361d2712aa3a1af94a < 3a50cf1e8e5157b82268eee7e330dbe5736a0948affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.18 <= 6.1.*unaffected
LinuxLinux6.2.5 <= 6.2.*unaffected
LinuxLinux6.3 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References