linux-kernel - Missing qcom/mdt_loader.c fix for CVE-2022-40540?

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Message-ID: <87ileq5ktl.wl-tiwai@suse.de>
Date:   Fri, 24 Mar 2023 14:40:38 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Missing qcom/mdt_loader.c fix for CVE-2022-40540?

Hi,

I was asked about the handling for CVE-2022-40540 [*] on SUSE kernels,
and through a quick glance, the upstream code still misses the fix.
Namely, the downstream fix for the integer overflow check of the
firmware size below:
  https://git.codelinaro.org/clo/la/kernel/msm-5.10/-/commit/dae3214cd3495e5c4b37537cacf665d2cdeaea24
... can be applied to the current upstream code (as of 6.3-rc3) as far
as I understand.

Could you guys check it and apply the fix if really needed?

Thanks!

Takashi

[*]
  http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-40540
  https://bugzilla.redhat.com/show_bug.cgi?id=2180513
  https://www.cve.org/CVERecord?id=CVE-2022-40540
  https://www.qualcomm.com/company/product-security/bulletins/march-2023-bulletin