vulnerability

Ubuntu: (Multiple Advisories) (CVE-2024-50153): Linux kernel vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Nov 7, 2024
Added
Feb 20, 2025
Modified
Aug 18, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: target: core: Fix null-ptr-deref in target_alloc_device()

There is a null-ptr-deref issue reported by KASAN:

BUG: KASAN: null-ptr-deref in target_alloc_device+0xbc4/0xbe0 [target_core_mod]
...
kasan_report+0xb9/0xf0
target_alloc_device+0xbc4/0xbe0 [target_core_mod]
core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod]
target_core_init_configfs+0x205/0x420 [target_core_mod]
do_one_initcall+0xdd/0x4e0
...
entry_SYSCALL_64_after_hwframe+0x76/0x7e

In target_alloc_device(), if allocing memory for dev queues fails, then
dev will be freed by dev->transport->free_device(), but dev->transport
is not initialized at that time, which will lead to a null pointer
reference problem.

Fixing this bug by freeing dev with hba->backend->ops->free_device().

Solutions

ubuntu-upgrade-linux-image-5-15-0-1021-nvidia-tegra-igxubuntu-upgrade-linux-image-5-15-0-1021-nvidia-tegra-igx-rtubuntu-upgrade-linux-image-5-15-0-1033-nvidia-tegraubuntu-upgrade-linux-image-5-15-0-1033-nvidia-tegra-rtubuntu-upgrade-linux-image-5-15-0-1044-xilinx-zynqmpubuntu-upgrade-linux-image-5-15-0-1060-gkeopubuntu-upgrade-linux-image-5-15-0-1070-ibmubuntu-upgrade-linux-image-5-15-0-1072-nvidiaubuntu-upgrade-linux-image-5-15-0-1072-nvidia-lowlatencyubuntu-upgrade-linux-image-5-15-0-1072-raspiubuntu-upgrade-linux-image-5-15-0-1073-intel-iotgubuntu-upgrade-linux-image-5-15-0-1074-ibmubuntu-upgrade-linux-image-5-15-0-1075-gkeubuntu-upgrade-linux-image-5-15-0-1075-oracleubuntu-upgrade-linux-image-5-15-0-1076-kvmubuntu-upgrade-linux-image-5-15-0-1077-gcpubuntu-upgrade-linux-image-5-15-0-1078-awsubuntu-upgrade-linux-image-5-15-0-1080-awsubuntu-upgrade-linux-image-5-15-0-1081-azureubuntu-upgrade-linux-image-5-15-0-1081-azure-fdeubuntu-upgrade-linux-image-5-15-0-133-genericubuntu-upgrade-linux-image-5-15-0-133-generic-64kubuntu-upgrade-linux-image-5-15-0-133-generic-lpaeubuntu-upgrade-linux-image-5-15-0-133-lowlatencyubuntu-upgrade-linux-image-5-15-0-133-lowlatency-64kubuntu-upgrade-linux-image-5-15-0-134-genericubuntu-upgrade-linux-image-5-15-0-134-generic-64kubuntu-upgrade-linux-image-5-15-0-134-generic-lpaeubuntu-upgrade-linux-image-6-11-0-1005-realtimeubuntu-upgrade-linux-image-6-11-0-1008-raspiubuntu-upgrade-linux-image-6-11-0-1009-awsubuntu-upgrade-linux-image-6-11-0-1009-azureubuntu-upgrade-linux-image-6-11-0-1009-azure-fdeubuntu-upgrade-linux-image-6-11-0-1009-gcpubuntu-upgrade-linux-image-6-11-0-1010-lowlatencyubuntu-upgrade-linux-image-6-11-0-1010-lowlatency-64kubuntu-upgrade-linux-image-6-11-0-1011-oracleubuntu-upgrade-linux-image-6-11-0-1011-oracle-64kubuntu-upgrade-linux-image-6-11-0-1015-oemubuntu-upgrade-linux-image-6-11-0-18-genericubuntu-upgrade-linux-image-6-11-0-18-generic-64kubuntu-upgrade-linux-image-6-8-0-1010-gkeopubuntu-upgrade-linux-image-6-8-0-1014-azure-nvidiaubuntu-upgrade-linux-image-6-8-0-1023-gkeubuntu-upgrade-linux-image-6-8-0-1024-ibmubuntu-upgrade-linux-image-6-8-0-1024-oracleubuntu-upgrade-linux-image-6-8-0-1024-oracle-64kubuntu-upgrade-linux-image-6-8-0-1026-nvidiaubuntu-upgrade-linux-image-6-8-0-1026-nvidia-64kubuntu-upgrade-linux-image-6-8-0-1026-nvidia-lowlatencyubuntu-upgrade-linux-image-6-8-0-1026-nvidia-lowlatency-64kubuntu-upgrade-linux-image-6-8-0-1026-oemubuntu-upgrade-linux-image-6-8-0-1027-awsubuntu-upgrade-linux-image-6-8-0-1027-azureubuntu-upgrade-linux-image-6-8-0-1027-azure-fdeubuntu-upgrade-linux-image-6-8-0-1028-gcpubuntu-upgrade-linux-image-6-8-0-1028-gcp-64kubuntu-upgrade-linux-image-6-8-0-1028-raspiubuntu-upgrade-linux-image-6-8-0-2023-raspi-realtimeubuntu-upgrade-linux-image-6-8-0-58-genericubuntu-upgrade-linux-image-6-8-0-58-generic-64kubuntu-upgrade-linux-image-6-8-0-58-lowlatencyubuntu-upgrade-linux-image-6-8-0-58-lowlatency-64kubuntu-upgrade-linux-image-6-8-1-1020-realtimeubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-lts-22-04ubuntu-upgrade-linux-image-aws-lts-24-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-cvmubuntu-upgrade-linux-image-azure-fdeubuntu-upgrade-linux-image-azure-fde-lts-22-04ubuntu-upgrade-linux-image-azure-fde-lts-24-04ubuntu-upgrade-linux-image-azure-lts-22-04ubuntu-upgrade-linux-image-azure-lts-24-04ubuntu-upgrade-linux-image-azure-nvidiaubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-64kubuntu-upgrade-linux-image-gcp-64k-lts-24-04ubuntu-upgrade-linux-image-gcp-lts-22-04ubuntu-upgrade-linux-image-gcp-lts-24-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-64k-hwe-22-04ubuntu-upgrade-linux-image-generic-64k-hwe-24-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-22-04ubuntu-upgrade-linux-image-generic-hwe-24-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-15ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-15ubuntu-upgrade-linux-image-gkeop-6-8ubuntu-upgrade-linux-image-ibmubuntu-upgrade-linux-image-ibm-classicubuntu-upgrade-linux-image-ibm-lts-24-04ubuntu-upgrade-linux-image-intelubuntu-upgrade-linux-image-intel-iotgubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-64kubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04ubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-hwe-22-04ubuntu-upgrade-linux-image-nvidiaubuntu-upgrade-linux-image-nvidia-6-8ubuntu-upgrade-linux-image-nvidia-64kubuntu-upgrade-linux-image-nvidia-64k-6-8ubuntu-upgrade-linux-image-nvidia-64k-hwe-22-04ubuntu-upgrade-linux-image-nvidia-hwe-22-04ubuntu-upgrade-linux-image-nvidia-lowlatencyubuntu-upgrade-linux-image-nvidi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References

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