Description: io_uring: fix shared sqpoll cancellation hangs
References:
Notes:
 carnil> Introduced in 37d1e2e3642e2 ("io_uring: move SQPOLL thread io-wq forked
 carnil> worker"). Vulnerable versions: 5.12-rc1.
Bugs:
upstream: released (5.13-rc1) [734551df6f9bedfbefcd113ede665945e9de0b99]
6.7-upstream-stable: N/A "Fixed before branching point"
6.6-upstream-stable: N/A "Fixed before branching point"
6.1-upstream-stable: N/A "Fixed before branching point"
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: N/A "Vulnerable code not present"
6.1-bookworm-security: N/A "Fixed before branching point"
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"