Riskcovery

CVE-2024-41080

io_uring: fix possible deadlock in io_register_iowq_max_workers()

State
Published
Severity
Not scored
Published
Jul 29, 2024
Updated
May 11, 2026
Reserved
Jul 12, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to before b17397a0a5c56e111f61cb5b77d162664dc00de9Affected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to before 97ed7ff58de66c544692b3c2b988f3f594348de0Affected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to before fdacd09f2ddf7a00787291f08ee48c0421e5b709Affected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to before 950ac86cff338ab56e2eaf611f4936ee34893b63Affected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to before b571a367502c7ef94c688ef9c7f7d69a2ce3bccaAffected
  • 2b188cc1bb857a9d4701ae59aa7768b5124e262e to before 73254a297c2dd094abec7c9efee32455ae875bdfAffected
LinuxLinux
  • 5.1Affected
  • before 5.1Not affected
  • 5.10.230 through 5.10.*Not affected
  • 5.15.173 through 5.15.*Not affected
  • 6.1.118 through 6.1.*Not affected
  • 6.6.62 through 6.6.*Not affected
  • 6.9.11 through 6.9.*Not affected
  • 6.10 and laterNot affected

References

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