Description
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfs_release_folio() Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfs_release_folio(). The latter cannot make progress due to state recovery being needed. It seems that the only safe thing to do here is to kick off a writeback of the folio, without waiting for completion, or else kicking off an asynchronous commit.
Product status
96780ca55e3cbf4f150fd5a833a61492c9947b5b (git) before 49d352bc263fe4a834233338bfaad31b3109addf
96780ca55e3cbf4f150fd5a833a61492c9947b5b (git) before 19b4d9ab5e77843eac0429c019470c02f8710b55
96780ca55e3cbf4f150fd5a833a61492c9947b5b (git) before cce0be6eb4971456b703aaeafd571650d314bcca
6.3
Any version before 6.3
6.12.67 (semver)
6.18.7 (semver)
6.19 (original_commit_for_fix)
References
git.kernel.org/...c/49d352bc263fe4a834233338bfaad31b3109addf
git.kernel.org/...c/19b4d9ab5e77843eac0429c019470c02f8710b55
git.kernel.org/...c/cce0be6eb4971456b703aaeafd571650d314bcca