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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2025-39963

io_uring: fix incorrect io_kiocb reference in io_link_skb

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix incorrect io_kiocb reference in io_link_skb In io_link_skb function, there is a bug where prev_notif is incorrectly assigned using 'nd' instead of 'prev_nd'. This causes the context validation check to compare the current notification with itself instead of comparing it with the previous notification. Fix by using the correct prev_nd parameter when obtaining prev_notif.

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

  • 6fe4220912d19152a26ce19713ab232f4263018d to < a89c34babc2e5834aa0905278f26f4dbe4b26b76affected
  • 6fe4220912d19152a26ce19713ab232f4263018d to < 50a98ce1ea694f1ff8e87bc2f8f84096d1736f6aaffected
  • 6fe4220912d19152a26ce19713ab232f4263018d to < 2c139a47eff8de24e3350dadb4c9d5e3426db826affected

Linux Linux

Default version status: affected

  • 6.10affected
  • 0 to < 6.10unaffected
  • 6.12.49 to ≤ 6.12.*unaffected
  • 6.16.9 to ≤ 6.16.*unaffected
  • 6.17 to ≤ *unaffected

References