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Date: Mon, 11 Apr 2022 16:20:56 +0800
From: Felix Fu <foyjog@...il.com>
To: oss-security@...ts.openwall.com
Subject: CVE-2022-28893: Linux kernel: Use after free in SUNRPC subsystem
Hello, I Request a CVE from MITRE.
Description: The SUNRPC subsystem in the Linux kernel through 5.17.2 can
call xs_xprt_free before ensuring that sockets are in the intended state.
Details: Use after free happens in inet_put_port because some sockets are
not close before xs_xprt_free().
CVE-ID: CVE-2022-28893 (
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28893)
Fix:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1a3b1bba7c7a5eb8a11513cf88427cb9d77bc60a
------------------------------------------------------------
I followed the steps as below :
To report minor security bugs (such as local DOS or local info leak):
1、Report the bug publicly to kernel developers as described above and wait
until a fix is committed. Alternatively, you can develop and send a fix
yourself.
2、Request a CVE from MITRE through the web form. Describe the bug details
and add a link to the fix (from patchwork.kernel.org, git.kernel.org or
github.com) in the request.
3、Once a CVE is assigned, send the bug details, the CVE number and a link
to the fix to oss-security@...ts.openwall.com
(
https://github.com/google/syzkaller/blob/master/docs/linux/reporting_kernel_bugs.md
)
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