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CVE-2021-47123

io_uring: fix ltout double free on completion race PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix ltout double free on completion race Always remove linked timeout on io_link_timeout_fn() from the master request link list, otherwise we may get use-after-free when first io_link_timeout_fn() puts linked timeout in the fail path, and then will be found and put on master's free.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 90cd7e424969d29aff653333b4dcb4e2e199d791 before 1f64f5e903b9d1d157875721e02adadc9d6f0a5d; affected 90cd7e424969d29aff653333b4dcb4e2e199d791 before 447c19f3b5074409c794b350b10306e1da1ef4ba
Linux / Linuxaffected 5.11; unaffected 0 before 5.11; unaffected 5.12.10 through 5.12.*; unaffected 5.13 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.