bugGNU GRUB - Bugs: bug #62072, If a multicast RA message is...


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bug #62072: If a multicast RA message is received during UEFI PXE boot, grub2 program will crash

Submitter:  Qiumiao Zhang <century6>
Submitted:  Thu 17 Feb 2022 11:54:56 AM UTC
Category:  Network Severity:  Major
Priority:  5 - Normal Item Group:  Software Error
Status:  None Privacy:  Public
Assigned to:  None Originator Name:  Qiumiao Zhang
Open/Closed:  Open Release:  2.02
Release:  Reproducibility:  Every Time
Planned Release:  None

Thu 17 Feb 2022 12:02:51 PM UTC, comment #1: 

I didn't verify the problem on version 2.06, but I think the same problem may exist in this version.

Qiumiao Zhang <century6>
Thu 17 Feb 2022 11:54:56 AM UTC, original submission:  

Versions affected: 2.02, 2.04
Reproduced on: UEFI PXE over IPv6
Tested on: QEMU virtual machine (aarch64) with Linux

During UEFI PXE boot in IPv6 network, if the DHCP server adopts stateful automatic configuration, when the client receives the ICMP6_ROUTER_ADVERTISE message multicast from the server, it will cause the problem of dereference null pointer and cause the grub2 program to crash.

Qiumiao Zhang <century6>


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Attached Files
file #52875:  grub2_1.png added by century6 (632KiB - image/png)
file #52876:  grub2_2.png added by century6 (5KiB - image/png)


Depends on the following items: None found

Items that depend on this one: None found


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  • -email is unavailable- added by century6 (Submitted the item)

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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2022-02-17 century6 Attached File- Added grub2_1.png, #52875
        Attached File- Added grub2_2.png, #52876

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