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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-41080

io_uring: fix possible deadlock in io_register_iowq_max_workers()

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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 possible deadlock in io_register_iowq_max_workers() The io_register_iowq_max_workers() function calls io_put_sq_data(), which acquires the sqd->lock without releasing the uring_lock. Similar to the commit 009ad9f0c6ee ("io_uring: drop ctx->uring_lock before acquiring sqd->lock"), this can lead to a potential deadlock situation. To resolve this issue, the uring_lock is released before calling io_put_sq_data(), and then it is re-acquired after the function call. This change ensures that the locks are acquired in the correct order, preventing the possibility of a deadlock.

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

  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to < b17397a0a5c56e111f61cb5b77d162664dc00de9affected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to < 97ed7ff58de66c544692b3c2b988f3f594348de0affected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to < fdacd09f2ddf7a00787291f08ee48c0421e5b709affected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to < 950ac86cff338ab56e2eaf611f4936ee34893b63affected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to < b571a367502c7ef94c688ef9c7f7d69a2ce3bccaaffected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to < 73254a297c2dd094abec7c9efee32455ae875bdfaffected

Linux Linux

Default version status: affected

  • 5.1affected
  • 0 to < 5.1unaffected
  • 5.10.230 to ≤ 5.10.*unaffected
  • 5.15.173 to ≤ 5.15.*unaffected
  • 6.1.118 to ≤ 6.1.*unaffected
  • 6.6.62 to ≤ 6.6.*unaffected
  • 6.9.11 to ≤ 6.9.*unaffected
  • 6.10 to ≤ *unaffected

References