medium
6.7
CWE
401 416
Advisory Published
Updated

CVE-2020-12770: Use After Free

First published: Tue Apr 14 2020(Updated: )

An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1160.rt56.1131.el7
0:3.10.0-1160.rt56.1131.el7
redhat/kernel<0:3.10.0-1160.el7
0:3.10.0-1160.el7
redhat/kernel<0:3.10.0-693.81.1.el7
0:3.10.0-693.81.1.el7
redhat/kernel<0:3.10.0-957.65.1.el7
0:3.10.0-957.65.1.el7
redhat/kernel<0:3.10.0-1062.40.1.el7
0:3.10.0-1062.40.1.el7
redhat/kernel-rt<0:4.18.0-240.rt7.54.el8
0:4.18.0-240.rt7.54.el8
redhat/kernel<0:4.18.0-240.el8
0:4.18.0-240.el8
ubuntu/linux<4.15.0-109.110
4.15.0-109.110
ubuntu/linux<5.3.0-62.56
5.3.0-62.56
ubuntu/linux<5.4.0-40.44
5.4.0-40.44
ubuntu/linux<5.7~
5.7~
ubuntu/linux<4.4.0-185.215
4.4.0-185.215
ubuntu/linux-aws<4.15.0-1077.81
4.15.0-1077.81
ubuntu/linux-aws<5.3.0-1030.32
5.3.0-1030.32
ubuntu/linux-aws<5.4.0-1018.18
5.4.0-1018.18
ubuntu/linux-aws<4.4.0-1074.78
4.4.0-1074.78
ubuntu/linux-aws<5.7~
5.7~
ubuntu/linux-aws<4.4.0-1110.121
4.4.0-1110.121
ubuntu/linux-aws-5.0<5.7~
5.7~
ubuntu/linux-aws-5.3<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
ubuntu/linux-aws-5.3<5.7~
5.7~
ubuntu/linux-aws-5.4<5.7~
5.7~
ubuntu/linux-aws-hwe<5.7~
5.7~
ubuntu/linux-aws-hwe<4.15.0-1074.78~16.04.1
4.15.0-1074.78~16.04.1
ubuntu/linux-azure<5.3.0-1032.33
5.3.0-1032.33
ubuntu/linux-azure<5.4.0-1020.20
5.4.0-1020.20
ubuntu/linux-azure<4.15.0-1091.101~14.04.1
4.15.0-1091.101~14.04.1
ubuntu/linux-azure<5.7~
5.7~
ubuntu/linux-azure<4.15.0-1091.101~16.04.1
4.15.0-1091.101~16.04.1
ubuntu/linux-azure-4.15<4.15.0-1091.101
4.15.0-1091.101
ubuntu/linux-azure-4.15<5.7~
5.7~
ubuntu/linux-azure-5.3<5.3.0-1032.33~18.04.1
5.3.0-1032.33~18.04.1
ubuntu/linux-azure-5.3<5.7~
5.7~
ubuntu/linux-azure-5.4<5.7~
5.7~
ubuntu/linux-azure-edge<5.7~
5.7~
ubuntu/linux-gcp<5.3.0-1030.32
5.3.0-1030.32
ubuntu/linux-gcp<5.4.0-1019.19
5.4.0-1019.19
ubuntu/linux-gcp<5.7~
5.7~
ubuntu/linux-gcp<4.15.0-1078.88~16.04.1
4.15.0-1078.88~16.04.1
ubuntu/linux-gcp-4.15<4.15.0-1078.88
4.15.0-1078.88
ubuntu/linux-gcp-4.15<5.7~
5.7~
ubuntu/linux-gcp-5.3<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
ubuntu/linux-gcp-5.3<5.7~
5.7~
ubuntu/linux-gcp-edge<5.7~
5.7~
ubuntu/linux-gke-4.15<4.15.0-1064.67
4.15.0-1064.67
ubuntu/linux-gke-4.15<5.7~
5.7~
ubuntu/linux-gke-5.0<5.0.0-1043.44
5.0.0-1043.44
ubuntu/linux-gke-5.0<5.7~
5.7~
ubuntu/linux-gke-5.3<5.3.0-1030.32~18.04.1
5.3.0-1030.32~18.04.1
ubuntu/linux-gke-5.3<5.7~
5.7~
ubuntu/linux-hwe<5.3.0-62.56~18.04.1
5.3.0-62.56~18.04.1
ubuntu/linux-hwe<5.7~
5.7~
ubuntu/linux-hwe<4.15.0-107.108~16.04.1
4.15.0-107.108~16.04.1
ubuntu/linux-hwe-5.4<5.4.0-40.44~18.04.1
5.4.0-40.44~18.04.1
ubuntu/linux-hwe-5.4<5.7~
5.7~
ubuntu/linux-hwe-edge<5.7~
5.7~
ubuntu/linux-kvm<4.15.0-1069.70
4.15.0-1069.70
ubuntu/linux-kvm<5.3.0-1024.26
5.3.0-1024.26
ubuntu/linux-kvm<5.4.0-1018.18
5.4.0-1018.18
ubuntu/linux-kvm<5.7~
5.7~
ubuntu/linux-kvm<4.4.0-1076.83
4.4.0-1076.83
ubuntu/linux-lts-trusty<5.7~
5.7~
ubuntu/linux-lts-xenial<4.4.0-185.215~14.04.1
4.4.0-185.215~14.04.1
ubuntu/linux-lts-xenial<5.7~
5.7~
ubuntu/linux-oem<4.15.0-1091.101
4.15.0-1091.101
ubuntu/linux-oem<5.7~
5.7~
ubuntu/linux-oem-5.6<5.6.0-1011.11
5.6.0-1011.11
ubuntu/linux-oem-5.6<5.7~
5.7~
ubuntu/linux-oem-osp1<5.0.0-1063.68
5.0.0-1063.68
ubuntu/linux-oem-osp1<5.7~
5.7~
ubuntu/linux-oracle<4.15.0-1048.52
4.15.0-1048.52
ubuntu/linux-oracle<5.3.0-1028.30
5.3.0-1028.30
ubuntu/linux-oracle<5.4.0-1019.19
5.4.0-1019.19
ubuntu/linux-oracle<5.7~
5.7~
ubuntu/linux-oracle<4.15.0-1046.50~16.04.1
4.15.0-1046.50~16.04.1
ubuntu/linux-oracle-5.0<5.7~
5.7~
ubuntu/linux-oracle-5.3<5.3.0-1028.30~18.04.1
5.3.0-1028.30~18.04.1
ubuntu/linux-oracle-5.3<5.7~
5.7~
ubuntu/linux-raspi<5.4.0-1013.13
5.4.0-1013.13
ubuntu/linux-raspi<5.7~
5.7~
ubuntu/linux-raspi-5.4<5.7~
5.7~
ubuntu/linux-raspi2<4.15.0-1065.69
4.15.0-1065.69
ubuntu/linux-raspi2<5.3.0-1028.30
5.3.0-1028.30
ubuntu/linux-raspi2<5.7~
5.7~
ubuntu/linux-raspi2<4.4.0-1135.144
4.4.0-1135.144
ubuntu/linux-raspi2-5.3<5.3.0-1028.30~18.04.2
5.3.0-1028.30~18.04.2
ubuntu/linux-raspi2-5.3<5.7~
5.7~
ubuntu/linux-riscv<5.4.0-28.32
5.4.0-28.32
ubuntu/linux-riscv<5.7~
5.7~
ubuntu/linux-snapdragon<4.15.0-1081.88
4.15.0-1081.88
ubuntu/linux-snapdragon<5.7~
5.7~
ubuntu/linux-snapdragon<4.4.0-1139.147
4.4.0-1139.147
Linux Linux kernel<=5.6.11
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
Canonical Ubuntu Linux=20.04
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Netapp Active Iq Unified Manager Vmware Vsphere
Netapp Cloud Backup
Netapp Element Software
Netapp Hci Management Node
Netapp Solidfire
Netapp Steelstore Cloud Integrated Storage
All of
Netapp Bootstrap Os
Netapp Hci Compute Node
All of
Netapp A700s Firmware
Netapp A700s
All of
Netapp H300s Firmware
Netapp H300s
All of
Netapp H500s Firmware
Netapp H500s
All of
Netapp H700s Firmware
Netapp H700s
All of
Netapp H300e Firmware
Netapp H300e
All of
Netapp H500e Firmware
Netapp H500e
All of
Netapp H700e Firmware
Netapp H700e
All of
Netapp H410s Firmware
Netapp H410s
All of
Netapp H410c Firmware
Netapp H410c
All of
Netapp H610c Firmware
Netapp H610c
All of
Netapp H610s Firmware
Netapp H610s
All of
Netapp H615c Firmware
Netapp H615c
Netapp Bootstrap Os
Netapp Hci Compute Node
Netapp A700s Firmware
Netapp A700s
Netapp H300s Firmware
Netapp H300s
Netapp H500s Firmware
Netapp H500s
Netapp H700s Firmware
Netapp H700s
Netapp H300e Firmware
Netapp H300e
Netapp H500e Firmware
Netapp H500e
Netapp H700e Firmware
Netapp H700e
Netapp H410s Firmware
Netapp H410s
Netapp H410c Firmware
Netapp H410c
Netapp H610c Firmware
Netapp H610c
Netapp H610s Firmware
Netapp H610s
Netapp H615c Firmware
Netapp H615c
debian/linux
4.19.249-2
4.19.304-1
5.10.209-2
5.10.216-1
6.1.76-1
6.1.90-1
6.7.12-1
6.8.9-1

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=83c6f2390040f188cc25b270b4befeb5628c1aee

Remedy

https://lkml.org/lkml/2020/4/13/870

Remedy

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Remedy

https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Remedy

https://git.kernel.org/linus/83c6f2390040f188cc25b270b4befeb5628c1aee

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