[Ubuntu 22.04.4/linux-image-6.5.0-26-generic] Kernel output "UBSAN: array-index-out-of-bounds in /build/linux-hwe-6.5-34pCLi/linux-hwe-6.5-6.5.0/drivers/net/hyperv/netvsc.c:1445:41" multiple times, especially during boot.

I think it was fixed by upstream commit bb9b0e46b84c ("hv: hyperv.h: Replace one-element array with flexible-array member"), need to double check.

[Impact]
error message "UBSAN: array-index-out-of-bounds in drivers/net/hyperv/netvsc.c:1446:41" appears
multiple times during boot for a Hyper-V environment.

[Fix]
Clean cherry-pick commit bb9b0e46b84 for Focal, Jammy and Mantic.

[Test case]
check the dmesg to see if there is the error message "UBSAN: array-index-out-of-bounds"

[Regression Potential]
DPDK which processes netvsc packets, so it might incompatible with ancient DPDK, but modern DPDK
had already used flexible array member.

Patch submitted for review: https://lists.ubuntu.com/archives/kernel-team/2024-April/149922.html

Status changed to 'Confirmed' because the bug affects multiple users.

This bug is awaiting verification that the linux/5.15.0-111.121 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux' to 'verification-done-jammy-linux'. If the problem still exists, change the tag 'verification-needed-jammy-linux' to 'verification-failed-jammy-linux'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

This bug is awaiting verification that the linux/5.4.0-186.206 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal-linux' to 'verification-done-focal-linux'. If the problem still exists, change the tag 'verification-needed-focal-linux' to 'verification-failed-focal-linux'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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This bug is awaiting verification that the linux-azure-fips/5.15.0-1065.74+fips1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-azure-fips' to 'verification-done-jammy-linux-azure-fips'. If the problem still exists, change the tag 'verification-needed-jammy-linux-azure-fips' to 'verification-failed-jammy-linux-azure-fips'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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This bug is awaiting verification that the linux-azure-5.15/5.15.0-1065.74~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal-linux-azure-5.15' to 'verification-done-focal-linux-azure-5.15'. If the problem still exists, change the tag 'verification-needed-focal-linux-azure-5.15' to 'verification-failed-focal-linux-azure-5.15'.

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This bug was fixed in the package linux - 5.15.0-112.122

---------------
linux (5.15.0-112.122) jammy; urgency=medium

  * jammy/linux: 5.15.0-112.122 -proposed tracker (LP: #2065898)

  * CVE-2024-21823
    - dmanegine: idxd: reformat opcap output to match bitmap_parse() input
    - dmaengine: idxd: add WQ operation cap restriction support
    - dmaengine: idxd: add knob for enqcmds retries
    - VFIO: Add the SPR_DSA and SPR_IAX devices to the denylist
    - dmaengine: idxd: add a new security check to deal with a hardware erratum
    - dmaengine: idxd: add a write() method for applications to submit work

linux (5.15.0-111.121) jammy; urgency=medium

  * jammy/linux: 5.15.0-111.121 -proposed tracker (LP: #2063763)

  * RTL8852BE fw security fail then lost WIFI function during suspend/resume
    cycle (LP: #2063096)
    - wifi: rtw89: download firmware with five times retry

  * Mount CIFS fails with Permission denied (LP: #2061986)
    - cifs: fix ntlmssp auth when there is no key exchange

  * USB stick can't be detected (LP: #2040948)
    - usb: Disable USB3 LPM at shutdown

  * Jammy update: v5.15.153 upstream stable release (LP: #2063290)
    - io_uring/unix: drop usage of io_uring socket
    - io_uring: drop any code related to SCM_RIGHTS
    - selftests: tls: use exact comparison in recv_partial
    - ASoC: rt5645: Make LattePanda board DMI match more precise
    - x86/xen: Add some null pointer checking to smp.c
    - MIPS: Clear Cause.BD in instruction_pointer_set
    - HID: multitouch: Add required quirk for Synaptics 0xcddc device
    - gen_compile_commands: fix invalid escape sequence warning
    - RDMA/mlx5: Fix fortify source warning while accessing Eth segment
    - RDMA/mlx5: Relax DEVX access upon modify commands
    - riscv: dts: sifive: add missing #interrupt-cells to pmic
    - x86/mm: Move is_vsyscall_vaddr() into asm/vsyscall.h
    - x86/mm: Disallow vsyscall page read for copy_from_kernel_nofault()
    - net/iucv: fix the allocation size of iucv_path_table array
    - parisc/ftrace: add missing CONFIG_DYNAMIC_FTRACE check
    - block: sed-opal: handle empty atoms when parsing response
    - dm-verity, dm-crypt: align "struct bvec_iter" correctly
    - scsi: mpt3sas: Prevent sending diag_reset when the controller is ready
    - ALSA: hda/realtek - ALC285 reduce pop noise from Headphone port
    - drm/amdgpu: Enable gpu reset for S3 abort cases on Raven series
    - Bluetooth: rfcomm: Fix null-ptr-deref in rfcomm_check_security
    - firewire: core: use long bus reset on gap count error
    - ASoC: Intel: bytcr_rt5640: Add an extra entry for the Chuwi Vi8 tablet
    - Input: gpio_keys_polled - suppress deferred probe error for gpio
    - ASoC: wm8962: Enable oscillator if selecting WM8962_FLL_OSC
    - ASoC: wm8962: Enable both SPKOUTR_ENA and SPKOUTL_ENA in mono mode
    - ASoC: wm8962: Fix up incorrect error message in wm8962_set_fll
    - do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak
    - s390/dasd: put block allocation in separate function
    - s390/dasd: add query PPRC function
    - s390/dasd: add copy pair setup
    - s390/dasd: add autoquiesce feature
    - s390/dasd: Use dev_*() for device lo...

This bug is awaiting verification that the linux-bluefield/5.15.0-1044.46 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-bluefield' to 'verification-done-jammy-linux-bluefield'. If the problem still exists, change the tag 'verification-needed-jammy-linux-bluefield' to 'verification-failed-jammy-linux-bluefield'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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This bug is awaiting verification that the linux-gkeop/5.15.0-1046.53 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-gkeop' to 'verification-done-jammy-linux-gkeop'. If the problem still exists, change the tag 'verification-needed-jammy-linux-gkeop' to 'verification-failed-jammy-linux-gkeop'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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This bug is awaiting verification that the linux-raspi/5.15.0-1056.59 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-raspi' to 'verification-done-jammy-linux-raspi'. If the problem still exists, change the tag 'verification-needed-jammy-linux-raspi' to 'verification-failed-jammy-linux-raspi'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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This bug is awaiting verification that the linux-hwe-5.15/5.15.0-112.122~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal-linux-hwe-5.15' to 'verification-done-focal-linux-hwe-5.15'. If the problem still exists, change the tag 'verification-needed-focal-linux-hwe-5.15' to 'verification-failed-focal-linux-hwe-5.15'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

This bug is awaiting verification that the linux-nvidia/5.15.0-1058.59 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-nvidia' to 'verification-done-jammy-linux-nvidia'. If the problem still exists, change the tag 'verification-needed-jammy-linux-nvidia' to 'verification-failed-jammy-linux-nvidia'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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This bug is awaiting verification that the linux-azure/5.15.0-1066.75 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-azure' to 'verification-done-jammy-linux-azure'. If the problem still exists, change the tag 'verification-needed-jammy-linux-azure' to 'verification-failed-jammy-linux-azure'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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This bug is awaiting verification that the linux-ibm-5.15/5.15.0-1056.59~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal-linux-ibm-5.15' to 'verification-done-focal-linux-ibm-5.15'. If the problem still exists, change the tag 'verification-needed-focal-linux-ibm-5.15' to 'verification-failed-focal-linux-ibm-5.15'.

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This bug is awaiting verification that the linux-intel-iotg-5.15/5.15.0-1058.64~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal-linux-intel-iotg-5.15' to 'verification-done-focal-linux-intel-iotg-5.15'. If the problem still exists, change the tag 'verification-needed-focal-linux-intel-iotg-5.15' to 'verification-failed-focal-linux-intel-iotg-5.15'.

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This bug is awaiting verification that the linux-oracle-5.15/5.15.0-1061.67~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal-linux-oracle-5.15' to 'verification-done-focal-linux-oracle-5.15'. If the problem still exists, change the tag 'verification-needed-focal-linux-oracle-5.15' to 'verification-failed-focal-linux-oracle-5.15'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

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