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Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists hci_cmd_sync_queue_once() needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources. Change the function to return -EEXIST if queue item already exists. Modify all callsites to handle that.

PUBLISHED Reserved 2026-05-01 | Published 2026-05-01 | Updated 2026-05-02 | Assigner Linux

Product status

Default status
unaffected

505ea2b295929e7be2b4e1bc86ee31cb7862fb01 (git) before 0ad2ce230b38cd4b3f6732cc609e270461e626e5
affected

505ea2b295929e7be2b4e1bc86ee31cb7862fb01 (git) before 2969554bcfccb5c609f6b6cd4a014933f3a66dd0
affected

f00f36db76eb8fd10d13e80e2590f23b5beaa54d (git)
affected

1499f79995c7ee58e3bfeeff75f6d1b37dcda881 (git)
affected

357603f4d396d85fbf0045512efaf1d7f7394ed7 (git)
affected

Default status
affected

6.9
affected

Any version before 6.9
unaffected

6.19.12 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/0ad2ce230b38cd4b3f6732cc609e270461e626e5

git.kernel.org/...c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0

cve.org (CVE-2026-43022)

nvd.nist.gov (CVE-2026-43022)

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