🛡️ UBUNTU-CVE-2021-47631
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: ARM: davinci: da850-evm: Avoid NULL pointer dereference With newer versions of GCC, there is a panic in da850_evm_config_emac() when booting multi_v5_defconfig in QEMU under the palmetto-bmc machine: Unable to handle kernel NULL pointer dereference at virtual address 00000020 pgd = (ptrval) [00000020] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 5.15.0 #1 Hardware name: Generic DT based system PC is at da850_evm_config_emac+0x1c/0x120 LR is at do_one_initcall+0x50/0x1e0 The emac_pdata pointer in soc_info is NULL because davinci_soc_info only gets populated on davinci machines but da850_evm_config_emac() is called on all machines via device_initcall(). Move the rmii_en assignment below the machine check so that it is only dereferenced when running on a supported SoC.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-02-26
Updated 2026-06-15
Modified 2026-06-04
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 5.15.0-37.39
linux-allwinner-5.19
linux-aws 5.15.0-1011.14
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4 5.4.0-1081.88~18.04.1
linux-aws-5.8
linux-aws-6.2
linux-aws-6.5
linux-aws-fips
linux-aws-hwe 4.15.0-1137.148~16.04.1
linux-azure 5.15.0-1010.12
linux-azure-4.15 4.15.0-1146.161
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15 5.15.0-1008.9~20.04.1
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4 5.4.0-1086.91~18.04.1
linux-azure-5.8
linux-azure-6.2
linux-azure-6.5
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-fips
linux-bluefield
linux-fips
linux-gcp 5.15.0-1008.12
linux-gcp-4.15 4.15.0-1131.147
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4 5.4.0-1084.92~18.04.1
linux-gcp-5.8
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-fips
linux-gke 5.15.0-1008.10
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15 5.15.0-41.44~20.04.1
linux-hwe-5.19
linux-hwe-5.4 5.4.0-122.138~18.04.1
linux-hwe-5.8
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-edge
linux-ibm 5.15.0-1007.8
linux-ibm-5.4 5.4.0-1029.33~18.04.1
linux-intel-5.13
linux-intel-iot-realtime
linux-intel-iotg 5.15.0-1008.11
linux-intel-iotg-5.15 5.15.0-1008.11~20.04.1
linux-iot 5.4.0-1004.6
linux-kvm 5.15.0-1010.11
linux-lowlatency 5.15.0-37.39
linux-lowlatency-hwe-5.15 5.15.0-42.45~20.04.1
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lts-xenial
linux-nvidia
linux-nvidia-6.2
linux-nvidia-6.5
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oem-6.5
linux-oracle 5.15.0-1009.12
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.3
linux-oracle-5.4 5.4.0-1079.87~18.04.1
linux-oracle-5.8
linux-oracle-6.5
linux-raspi 5.15.0-1011.13
linux-raspi-5.4 5.4.0-1066.76~18.04.1
linux-raspi-realtime
linux-raspi2
linux-realtime 5.15.0-1014.14
linux-riscv
linux-riscv-5.11
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.5
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5

References

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