Messages in this thread | | | Date | Mon, 17 Oct 2022 17:52:44 -0700 | From | Eric Biggers <> | Subject | Re: [PATCH] fscrypt: fix keyring memory leak on mount failure |
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On Tue, Oct 11, 2022 at 02:38:38PM -0700, Eric Biggers wrote: > From: Eric Biggers <ebiggers@google.com> > > Commit d7e7b9af104c ("fscrypt: stop using keyrings subsystem for > fscrypt_master_key") moved the keyring destruction from __put_super() to > generic_shutdown_super() so that the filesystem's block device(s) are > still available. Unfortunately, this causes a memory leak in the case > where a mount is attempted with the test_dummy_encryption mount option, > but the mount fails after the option has already been processed. > > To fix this, attempt the keyring destruction in both places. > > Reported-by: syzbot+104c2a89561289cec13e@syzkaller.appspotmail.com > Fixes: d7e7b9af104c ("fscrypt: stop using keyrings subsystem for fscrypt_master_key") > Signed-off-by: Eric Biggers <ebiggers@google.com>
Applied to fscrypt.git#for-stable for 6.1.
As usual, I'd greatly appreciate reviews though...
- Eric
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