From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from embla.dev.snart.me (embla.dev.snart.me [54.252.183.203]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 032533E866D; Mon, 4 May 2026 20:26:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.252.183.203 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777926369; cv=none; b=EUvZm1S8oKKoHih2b91HwB9N6WY0YLsByAWy8iszk4QZWbMpd60uJND4wyfuYmlyDkRFwm3XO49GEI9SUe/bQ1gpZOacInYAly69G9F1KtHXIJ9hcvYTNYRwUIHnSyELANrQeLGmIxLBRmJurcY313DJ3a75Ppz3rMweRcd5ICQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777926369; c=relaxed/simple; bh=5wLVemXqI5XtogvSMfyxXKUc5BMAPV85CSbBsm7nmCU=; h=Content-Type:Message-ID:Date:MIME-Version:From:Subject:To:Cc: References:In-Reply-To; b=WkXRSXGuHpbivoTykSDG+IrBavTRe1PYSwpWpoD/mDOe8HIxcY70rRlnAZotc6oEsCBjMnSWqR++HrDUmmDdWr0V38OoR+ho3kGVKZd/xwgna2mMW3xpv3glFwOA5QN/d0MPqvg1LAl69lHoPs+Bx5kbF3CNEkgK/08se0uFHXs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=dev.snart.me; spf=pass smtp.mailfrom=dev.snart.me; arc=none smtp.client-ip=54.252.183.203 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=dev.snart.me Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dev.snart.me Received: from embla.dev.snart.me (localhost [IPv6:::1]) by embla.dev.snart.me (Postfix) with ESMTP id 683EC1D490; Mon, 4 May 2026 20:26:04 +0000 (UTC) Received: from [192.168.1.18] ([182.226.25.243]) by embla.dev.snart.me with ESMTPSA id lSeiCNwA+WnyJwEA8KYfjw (envelope-from ); Mon, 04 May 2026 20:26:04 +0000 Content-Type: multipart/mixed; boundary="------------SgzrhKw02r9lKy3Uyqq9E2Ky" Message-ID: <13bb1c13-98b6-4a4a-b03d-ba0f88680f1e@dev.snart.me> Date: Tue, 5 May 2026 05:26:03 +0900 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: David Timber Subject: Re: [syzbot] [mm?] [f2fs?] [exfat?] memory leak in __kfree_rcu_sheaf To: syzbot Cc: linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com References: <698a26d3.050a0220.3b3015.007e.GAE@google.com> Content-Language: en-US, ko Autocrypt: addr=dxdt@dev.snart.me; keydata= xjMEYmJg1hYJKwYBBAHaRw8BAQdAf5E+ri1XLtjqYbZdHOyc8oS+1/XJ5bSlbx5WHXmVBZzN IERhdmlkIFRpbWJlciA8ZHhkdEBkZXYuc25hcnQubWU+wpQEExYKADwWIQQn/Jn96EMUaIoF X+T/ldyyrZpWaAUCYmJg1gIbAwULCQgHAgMiAgEGFQoJCAsCBBYCAwECHgcCF4AACgkQ/5Xc sq2aVmjJZwD8COjPlUwccrlRvbNQ6f87DWchtYO0o8W2DNRM3RLps0EA/jEhIbRV6AsyC8jr 30Ut3aJ3/mO/6G4sLj7OvkEEBH0MzjgEYmJg1hIKKwYBBAGXVQEFAQEHQFpgtIgaByv9lIEY EmpavMO0pYjtu7TMJynwdnGYkN9LAwEIB8J4BBgWCgAgFiEEJ/yZ/ehDFGiKBV/k/5Xcsq2a VmgFAmJiYNYCGwwACgkQ/5Xcsq2aVmhFCwEA0kM9VyYB4bLCM7+SuXUUH+5Ec99Nj4RXxFad Key9GuwA/2BZK6bNyrLSfEk2JDRoskqf7OIL0wa6JOD5SrBnMe8E In-Reply-To: <698a26d3.050a0220.3b3015.007e.GAE@google.com> This is a multi-part message in MIME format. --------------SgzrhKw02r9lKy3Uyqq9E2Ky Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit #syz test --------------SgzrhKw02r9lKy3Uyqq9E2Ky Content-Type: text/x-patch; charset=UTF-8; name="syz-cae7809e9dc1459e4e63.f2fs-dont-use-after-free.patch" Content-Disposition: attachment; filename="syz-cae7809e9dc1459e4e63.f2fs-dont-use-after-free.patch" Content-Transfer-Encoding: base64 ZGlmZiAtLWdpdCBhL2ZzL2YyZnMvc3VwZXIuYyBiL2ZzL2YyZnMvc3VwZXIuYwppbmRleCBj NGMyMjVlMDlkYzQuLjdhYmE5OWUxZjkzZiAxMDA2NDQKLS0tIGEvZnMvZjJmcy9zdXBlci5j CisrKyBiL2ZzL2YyZnMvc3VwZXIuYwpAQCAtNDU5NSw2ICs0NTk1LDEyIEBAIHZvaWQgZjJm c19oYW5kbGVfZXJyb3Ioc3RydWN0IGYyZnNfc2JfaW5mbyAqc2JpLCB1bnNpZ25lZCBjaGFy IGVycm9yKQogCQlyZXR1cm47CiAJaWYgKCF0ZXN0X2JpdChlcnJvciwgKHVuc2lnbmVkIGxv bmcgKilzYmktPmVycm9ycykpCiAJCXJldHVybjsKKworCWlmICh1bmxpa2VseShpc19zYmlf ZmxhZ19zZXQoc2JpLCBTQklfSVNfQ0xPU0UpKSkgeworCQlmMmZzX3dhcm4oc2JpLCAiZjJm c19oYW5kbGVfZXJyb3IoKSBjYWxsZWQgdXBvbiBzYl9wdXQiKTsKKwkJcmV0dXJuOworCX0K KwogCXNjaGVkdWxlX3dvcmsoJnNiaS0+c19lcnJvcl93b3JrKTsKIH0KIApAQCAtNDYyMSw3 ICs0NjI3LDEwIEBAIHZvaWQgZjJmc19oYW5kbGVfY3JpdGljYWxfZXJyb3Ioc3RydWN0IGYy ZnNfc2JfaW5mbyAqc2JpLCB1bnNpZ25lZCBjaGFyIHJlYXNvbikKIAkJICogaW4gb3JkZXIg dG8gYXZvaWQgcG90ZW50aWFsIGRlYWRsb2NrIHdoZW4gcnVubmluZyBpbnRvCiAJCSAqIGYy ZnNfcmVjb3JkX3N0b3BfcmVhc29uKCkgc3luY2hyb25vdXNseS4KIAkJICovCi0JCXNjaGVk dWxlX3dvcmsoJnNiaS0+c19lcnJvcl93b3JrKTsKKwkJaWYgKHVubGlrZWx5KGlzX3NiaV9m bGFnX3NldChzYmksIFNCSV9JU19DTE9TRSkpKQorCQkJZjJmc193YXJuKHNiaSwgImYyZnNf aGFuZGxlX2NyaXRpY2FsX2Vycm9yKCkgY2FsbGVkIHVwb24gc2JfcHV0Iik7CisJCWVsc2UK KwkJCXNjaGVkdWxlX3dvcmsoJnNiaS0+c19lcnJvcl93b3JrKTsKIAl9CiAKIAkvKgo= --------------SgzrhKw02r9lKy3Uyqq9E2Ky--