PublicDateAtUSN: 2020-01-14 18:00:00 UTC
Candidate: CVE-2020-7053
CRD: 2020-01-14 18:00:00 UTC
PublicDate: 2020-01-14 21:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7053
 https://ubuntu.com/security/notices/USN-4255-1
 https://ubuntu.com/security/notices/USN-4255-2
 https://ubuntu.com/security/notices/USN-4285-1
 https://ubuntu.com/security/notices/USN-4287-1
 https://ubuntu.com/security/notices/USN-4287-2
Description:
 In the Linux kernel 4.14 longterm through 4.14.165 and 4.19 longterm
 through 4.19.96 (and 5.x before 5.2), there is a use-after-free (write) in
 the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka
 CID-7dc40713618c. This is related to i915_gem_context_destroy_ioctl in
 drivers/gpu/drm/i915/i915_gem_context.c.
Ubuntu-Description:
 It was discovered that a race condition can lead to a use-after-free while
 destroying GEM contexts in the i915 driver for the Linux kernel. A local
 attacker could use this to cause a denial of service (system crash) or
 possibly execute arbitrary code.
Notes:
 tyhicks> This issue only affects systems with Intel Graphics Processing Units
  (GPUs)
Mitigation: 
Bugs: 
 https://bugs.launchpad.net/bugs/1859522
Priority: medium
Discovered-by: Quan Luo and ycq
Assigned-to: 
CVSS:
 nvd: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H [7.8 HIGH]

Patches_linux:
 break-fix: 1acfc104cdf8a3408f0e83b4115d4419c6315005 7dc40713618c884bf07c030d1ab1f47a9dc1f310|local-2020-7053-fix
upstream_linux: released (5.2~rc1)
precise/esm_linux: not-affected (3.0.0-12.20)
trusty_linux: ignored (out of standard support)
trusty/esm_linux: not-affected (3.11.0-12.19)
xenial_linux: not-affected (4.2.0-16.19)
esm-infra/xenial_linux: not-affected (4.2.0-16.19)
bionic_linux: released (4.15.0-76.86)
disco_linux: pending (5.0.0-40.44)
eoan_linux: not-affected (5.2.0-8.9)
focal_linux: not-affected (5.4.0-9.12)
devel_linux: not-affected (5.4.0-9.12)

Patches_linux-hwe:
upstream_linux-hwe: released (5.2~rc1)
precise/esm_linux-hwe: DNE
trusty_linux-hwe: DNE
trusty/esm_linux-hwe: DNE
xenial_linux-hwe: released (4.15.0-76.86~16.04.1)
esm-infra/xenial_linux-hwe: released (4.15.0-76.86~16.04.1)
bionic_linux-hwe: released (5.3.0-26.28~18.04.1)
disco_linux-hwe: DNE
eoan_linux-hwe: DNE
focal_linux-hwe: DNE
devel_linux-hwe: DNE

Patches_linux-hwe-edge:
upstream_linux-hwe-edge: released (5.2~rc1)
precise/esm_linux-hwe-edge: DNE
trusty_linux-hwe-edge: DNE
trusty/esm_linux-hwe-edge: DNE
xenial_linux-hwe-edge: ignored (was needs-triage now end-of-life)
esm-infra/xenial_linux-hwe-edge: ignored (was needs-triage now end-of-life)
bionic_linux-hwe-edge: ignored (was needs-triage now end-of-life)
disco_linux-hwe-edge: DNE
eoan_linux-hwe-edge: DNE
focal_linux-hwe-edge: DNE
devel_linux-hwe-edge: DNE

Patches_linux-lts-xenial:
upstream_linux-lts-xenial: released (5.2~rc1)
precise/esm_linux-lts-xenial: DNE
trusty_linux-lts-xenial: ignored (out of standard support)
trusty/esm_linux-lts-xenial: not-affected (4.4.0-13.29~14.04.1)
xenial_linux-lts-xenial: DNE
bionic_linux-lts-xenial: DNE
disco_linux-lts-xenial: DNE
eoan_linux-lts-xenial: DNE
focal_linux-lts-xenial: DNE
devel_linux-lts-xenial: DNE

Patches_linux-lts-trusty:
upstream_linux-lts-trusty: released (5.2~rc1)
precise/esm_linux-lts-trusty: not-affected (3.13.0-24.46~precise1)
trusty_linux-lts-trusty: DNE
trusty/esm_linux-lts-trusty: DNE
xenial_linux-lts-trusty: DNE
bionic_linux-lts-trusty: DNE
disco_linux-lts-trusty: DNE
eoan_linux-lts-trusty: DNE
focal_linux-lts-trusty: DNE
devel_linux-lts-trusty: DNE

Patches_linux-oem:
upstream_linux-oem: released (5.2~rc1)
precise/esm_linux-oem: DNE
trusty_linux-oem: DNE
trusty/esm_linux-oem: DNE
xenial_linux-oem: ignored (was needs-triage now end-of-life)
bionic_linux-oem: released (4.15.0-1067.77)
disco_linux-oem: ignored (reached end-of-life)
eoan_linux-oem: released (4.15.0-1067.77)
focal_linux-oem: DNE
devel_linux-oem: DNE

Patches_linux-oem-osp1:
upstream_linux-oem-osp1: released (5.2~rc1)
precise/esm_linux-oem-osp1: DNE
trusty_linux-oem-osp1: DNE
trusty/esm_linux-oem-osp1: DNE
xenial_linux-oem-osp1: DNE
bionic_linux-oem-osp1: released (5.0.0-1037.42)
disco_linux-oem-osp1: ignored (reached end-of-life)
eoan_linux-oem-osp1: released (5.0.0-1037.42)
focal_linux-oem-osp1: DNE
devel_linux-oem-osp1: DNE

Patches_linux-kvm:
upstream_linux-kvm: released (5.2~rc1)
precise/esm_linux-kvm: DNE
trusty_linux-kvm: DNE
trusty/esm_linux-kvm: DNE
xenial_linux-kvm: not-affected (4.4.0-1004.9)
esm-infra/xenial_linux-kvm: not-affected (4.4.0-1004.9)
bionic_linux-kvm: released (4.15.0-1053.53)
disco_linux-kvm: ignored (reached end-of-life)
eoan_linux-kvm: not-affected (5.3.0-1003.3)
focal_linux-kvm: not-affected (5.4.0-1004.4)
devel_linux-kvm: not-affected (5.4.0-1004.4)

Patches_linux-aws:
upstream_linux-aws: released (5.2~rc1)
precise/esm_linux-aws: DNE
trusty_linux-aws: ignored (out of standard support)
trusty/esm_linux-aws: not-affected (4.4.0-1002.2)
xenial_linux-aws: not-affected (4.4.0-1001.10)
esm-infra/xenial_linux-aws: not-affected (4.4.0-1001.10)
bionic_linux-aws: released (4.15.0-1058.60)
disco_linux-aws: ignored (reached end-of-life)
eoan_linux-aws: not-affected (5.3.0-1003.3)
focal_linux-aws: not-affected (5.4.0-1005.5)
devel_linux-aws: not-affected (5.4.0-1005.5)

Patches_linux-aws-5.0:
upstream_linux-aws-5.0: released (5.2~rc1)
precise/esm_linux-aws-5.0: DNE
trusty_linux-aws-5.0: DNE
trusty/esm_linux-aws-5.0: DNE
xenial_linux-aws-5.0: DNE
bionic_linux-aws-5.0: released (5.0.0-1025.28)
disco_linux-aws-5.0: DNE
eoan_linux-aws-5.0: DNE
focal_linux-aws-5.0: DNE
devel_linux-aws-5.0: DNE

Patches_linux-aws-hwe:
upstream_linux-aws-hwe: released (5.2~rc1)
precise/esm_linux-aws-hwe: DNE
trusty_linux-aws-hwe: DNE
trusty/esm_linux-aws-hwe: DNE
xenial_linux-aws-hwe: released (4.15.0-1058.60~16.04.1)
esm-infra/xenial_linux-aws-hwe: released (4.15.0-1058.60~16.04.1)
bionic_linux-aws-hwe: DNE
disco_linux-aws-hwe: DNE
eoan_linux-aws-hwe: DNE
focal_linux-aws-hwe: DNE
devel_linux-aws-hwe: DNE

Patches_linux-azure:
upstream_linux-azure: released (5.2~rc1)
precise/esm_linux-azure: DNE
trusty_linux-azure: ignored (out of standard support)
trusty/esm_linux-azure: released (4.15.0-1067.72~14.04.1)
xenial_linux-azure: released (4.15.0-1067.72)
esm-infra/xenial_linux-azure: released (4.15.0-1067.72)
bionic_linux-azure: released (5.0.0-1032.34)
disco_linux-azure: ignored (reached end-of-life)
eoan_linux-azure: not-affected (5.3.0-1002.2)
focal_linux-azure: not-affected (5.4.0-1006.6)
devel_linux-azure: not-affected (5.4.0-1006.6)

Patches_linux-azure-5.3:
upstream_linux-azure-5.3: released (5.2~rc1)
precise/esm_linux-azure-5.3: DNE
trusty_linux-azure-5.3: DNE
trusty/esm_linux-azure-5.3: DNE
xenial_linux-azure-5.3: DNE
bionic_linux-azure-5.3: not-affected (5.3.0-1007.8~18.04.1)
disco_linux-azure-5.3: DNE
eoan_linux-azure-5.3: DNE
focal_linux-azure-5.3: DNE
devel_linux-azure-5.3: DNE

Patches_linux-azure-edge:
upstream_linux-azure-edge: released (5.2~rc1)
precise/esm_linux-azure-edge: DNE
trusty_linux-azure-edge: DNE
trusty/esm_linux-azure-edge: DNE
xenial_linux-azure-edge: ignored (was needs-triage now end-of-life)
bionic_linux-azure-edge: ignored (was needs-triage now end-of-life)
disco_linux-azure-edge: DNE
eoan_linux-azure-edge: DNE
focal_linux-azure-edge: DNE
devel_linux-azure-edge: DNE

Patches_linux-gcp:
upstream_linux-gcp: released (5.2~rc1)
precise/esm_linux-gcp: DNE
trusty_linux-gcp: DNE
trusty/esm_linux-gcp: DNE
xenial_linux-gcp: released (4.15.0-1055.59)
esm-infra/xenial_linux-gcp: released (4.15.0-1055.59)
bionic_linux-gcp: released (5.0.0-1031.32)
disco_linux-gcp: ignored (reached end-of-life)
eoan_linux-gcp: not-affected (5.3.0-1003.3)
focal_linux-gcp: not-affected (5.4.0-1005.5)
devel_linux-gcp: not-affected (5.4.0-1005.5)

Patches_linux-gcp-5.3:
upstream_linux-gcp-5.3: released (5.2~rc1)
precise/esm_linux-gcp-5.3: DNE
trusty_linux-gcp-5.3: DNE
trusty/esm_linux-gcp-5.3: DNE
xenial_linux-gcp-5.3: DNE
bionic_linux-gcp-5.3: not-affected (5.3.0-1008.9~18.04.1)
disco_linux-gcp-5.3: DNE
eoan_linux-gcp-5.3: DNE
focal_linux-gcp-5.3: DNE
devel_linux-gcp-5.3: DNE

Patches_linux-gcp-edge:
upstream_linux-gcp-edge: released (5.2~rc1)
precise/esm_linux-gcp-edge: DNE
trusty_linux-gcp-edge: DNE
trusty/esm_linux-gcp-edge: DNE
xenial_linux-gcp-edge: DNE
bionic_linux-gcp-edge: ignored (was needs-triage now end-of-life)
disco_linux-gcp-edge: DNE
eoan_linux-gcp-edge: DNE
focal_linux-gcp-edge: DNE
devel_linux-gcp-edge: DNE

Patches_linux-gke-4.15:
upstream_linux-gke-4.15: released (5.2~rc1)
precise/esm_linux-gke-4.15: DNE
trusty_linux-gke-4.15: DNE
trusty/esm_linux-gke-4.15: DNE
xenial_linux-gke-4.15: DNE
bionic_linux-gke-4.15: released (4.15.0-1052.55)
disco_linux-gke-4.15: DNE
eoan_linux-gke-4.15: DNE
focal_linux-gke-4.15: DNE
devel_linux-gke-4.15: DNE

Patches_linux-gke-5.0:
upstream_linux-gke-5.0: released (5.2~rc1)
precise/esm_linux-gke-5.0: DNE
trusty_linux-gke-5.0: DNE
trusty/esm_linux-gke-5.0: DNE
xenial_linux-gke-5.0: DNE
bionic_linux-gke-5.0: released (5.0.0-1030.31)
disco_linux-gke-5.0: DNE
eoan_linux-gke-5.0: DNE
focal_linux-gke-5.0: DNE
devel_linux-gke-5.0: DNE

Patches_linux-oracle:
upstream_linux-oracle: released (5.2~rc1)
precise/esm_linux-oracle: DNE
trusty_linux-oracle: DNE
trusty/esm_linux-oracle: DNE
xenial_linux-oracle: released (4.15.0-1033.36~16.04.1)
esm-infra/xenial_linux-oracle: released (4.15.0-1033.36~16.04.1)
bionic_linux-oracle: released (4.15.0-1033.36)
disco_linux-oracle: ignored (reached end-of-life)
eoan_linux-oracle: not-affected (5.3.0-1002.2)
focal_linux-oracle: not-affected (5.4.0-1005.5)
devel_linux-oracle: not-affected (5.4.0-1005.5)

Patches_linux-oracle-5.0:
upstream_linux-oracle-5.0: released (5.2~rc1)
precise/esm_linux-oracle-5.0: DNE
trusty_linux-oracle-5.0: DNE
trusty/esm_linux-oracle-5.0: DNE
xenial_linux-oracle-5.0: DNE
bionic_linux-oracle-5.0: released (5.0.0-1011.16)
disco_linux-oracle-5.0: DNE
eoan_linux-oracle-5.0: DNE
focal_linux-oracle-5.0: DNE
devel_linux-oracle-5.0: DNE

Patches_linux-raspi2:
upstream_linux-raspi2: released (5.2~rc1)
precise/esm_linux-raspi2: DNE
trusty_linux-raspi2: DNE
trusty/esm_linux-raspi2: DNE
xenial_linux-raspi2: not-affected (4.2.0-1013.19)
bionic_linux-raspi2: not-affected (intel graphics only)
disco_linux-raspi2: ignored (reached end-of-life)
eoan_linux-raspi2: not-affected (5.3.0-1005.6)
focal_linux-raspi2: not-affected (5.4.0-1004.4)
devel_linux-raspi2: not-affected (5.4.0-1004.4)

Patches_linux-snapdragon:
upstream_linux-snapdragon: released (5.2~rc1)
precise/esm_linux-snapdragon: DNE
trusty_linux-snapdragon: DNE
trusty/esm_linux-snapdragon: DNE
xenial_linux-snapdragon: not-affected (4.4.0-1012.12)
bionic_linux-snapdragon: released (4.15.0-1071.78)
disco_linux-snapdragon: ignored (reached end-of-life)
eoan_linux-snapdragon: DNE
focal_linux-snapdragon: DNE
devel_linux-snapdragon: DNE

Patches_linux-raspi2-5.3:
upstream_linux-raspi2-5.3: released (5.2~rc1)
precise/esm_linux-raspi2-5.3: DNE
trusty_linux-raspi2-5.3: DNE
trusty/esm_linux-raspi2-5.3: DNE
xenial_linux-raspi2-5.3: DNE
bionic_linux-raspi2-5.3: not-affected (5.3.0-1017.19~18.04.1)
eoan_linux-raspi2-5.3: DNE
focal_linux-raspi2-5.3: DNE
devel_linux-raspi2-5.3: DNE

Patches_linux-oem-5.6:
upstream_linux-oem-5.6: released (5.2~rc1)
precise/esm_linux-oem-5.6: DNE
trusty_linux-oem-5.6: DNE
trusty/esm_linux-oem-5.6: DNE
xenial_linux-oem-5.6: DNE
bionic_linux-oem-5.6: DNE
eoan_linux-oem-5.6: DNE
focal_linux-oem-5.6: not-affected (5.4.0-1002.4)
devel_linux-oem-5.6: not-affected (5.4.0-1002.4)

Patches_linux-gke-5.3:
upstream_linux-gke-5.3: released (5.2~rc1)
precise/esm_linux-gke-5.3: DNE
trusty_linux-gke-5.3: DNE
trusty/esm_linux-gke-5.3: DNE
xenial_linux-gke-5.3: DNE
bionic_linux-gke-5.3: not-affected (5.3.0-1011.12~18.04.1)
eoan_linux-gke-5.3: DNE
focal_linux-gke-5.3: DNE
devel_linux-gke-5.3: DNE

Patches_linux-oracle-5.3:
upstream_linux-oracle-5.3: released (5.2~rc1)
precise/esm_linux-oracle-5.3: DNE
trusty_linux-oracle-5.3: DNE
trusty/esm_linux-oracle-5.3: DNE
xenial_linux-oracle-5.3: DNE
bionic_linux-oracle-5.3: not-affected (5.3.0-1011.12~18.04.1)
eoan_linux-oracle-5.3: DNE
focal_linux-oracle-5.3: DNE
devel_linux-oracle-5.3: DNE