Messages in this thread | | | Date | Wed, 28 Dec 2022 12:58:22 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH v5 03/17] EDAC/qcom: Do not pass llcc_driv_data as edac_device_ctl_info's pvt_info |
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On Wed, Dec 28, 2022 at 02:10:14PM +0530, Manivannan Sadhasivam wrote: > The memory for "llcc_driv_data" is allocated by the LLCC driver. But when > it is passed as "pvt_info" to the EDAC core, it will get freed during the > qcom_edac driver release. So when the qcom_edac driver gets probed again, > it will try to use the freed data leading to the use-after-free bug. > > Fix this by not passing "llcc_driv_data" as pvt_info but rather reference
"Do not pass ..."
> it using the "platform_data" in the qcom_edac driver. > > Cc: <stable@vger.kernel.org> # 4.20 > Fixes: 27450653f1db ("drivers: edac: Add EDAC driver support for QCOM SoCs") > Tested-by: Steev Klimaszewski <steev@kali.org> # Thinkpad X13s > Tested-by: Andrew Halaney <ahalaney@redhat.com> # sa8540p-ride > Reported-by: Steev Klimaszewski <steev@kali.org> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > --- > drivers/edac/qcom_edac.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-)
with that:
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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