PublicDateAtUSN: 2020-04-06 01:15:00 UTC
Candidate: CVE-2020-11565
PublicDate: 2020-04-06 01:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11565
 https://git.kernel.org/linus/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd
 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd
 https://github.com/torvalds/linux/commit/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd
 https://ubuntu.com/security/notices/USN-4363-1
 https://ubuntu.com/security/notices/USN-4364-1
 https://ubuntu.com/security/notices/USN-4369-1
 https://ubuntu.com/security/notices/USN-4368-1
 https://ubuntu.com/security/notices/USN-4367-1
Description:
 ** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2.
 mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write
 because an empty nodelist is mishandled during mount option parsing, aka
 CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that
 this is a vulnerability because the issue “is a bug in parsing mount
 options which can only be specified by a privileged user, so triggering the
 bug does not grant any powers not already held.”.
Ubuntu-Description:
 It was discovered that the linux kernel did not properly validate certain
 mount options to the tmpfs virtual memory file system. A local attacker
 with the ability to specify mount options could use this to cause a denial
 of service (system crash).
Notes:
Mitigation:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H [6.0 MEDIUM]

Patches_linux:
 break-fix: 095f1fc4ebf36c64fddf9b6db29b1ab5517378e6 aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd
upstream_linux: released (5.7~rc1)
precise/esm_linux: ignored (was needed ESM criteria)
trusty_linux: ignored (out of standard support)
trusty/esm_linux: ignored (was needed ESM criteria)
xenial_linux: released (4.4.0-179.209)
esm-infra/xenial_linux: released (4.4.0-179.209)
bionic_linux: released (4.15.0-101.102)
eoan_linux: released (5.3.0-53.47)
focal_linux: released (5.4.0-31.35)
devel_linux: not-affected (5.4.0-42.46)

Patches_linux-hwe:
upstream_linux-hwe: released (5.7~rc1)
precise/esm_linux-hwe: DNE
trusty_linux-hwe: DNE
trusty/esm_linux-hwe: DNE
xenial_linux-hwe: released (4.15.0-101.102~16.04.1)
esm-infra/xenial_linux-hwe: released (4.15.0-101.102~16.04.1)
bionic_linux-hwe: released (5.3.0-53.47~18.04.1)
eoan_linux-hwe: DNE
focal_linux-hwe: DNE
devel_linux-hwe: DNE

Patches_linux-hwe-edge:
upstream_linux-hwe-edge: released (5.7~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)
eoan_linux-hwe-edge: DNE
focal_linux-hwe-edge: DNE
devel_linux-hwe-edge: DNE

Patches_linux-lts-xenial:
upstream_linux-lts-xenial: released (5.7~rc1)
precise/esm_linux-lts-xenial: DNE
trusty_linux-lts-xenial: ignored (out of standard support)
trusty/esm_linux-lts-xenial: released (4.4.0-179.209~14.04.1)
xenial_linux-lts-xenial: DNE
bionic_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 (5.7~rc1)
precise/esm_linux-lts-trusty: ignored (was needed ESM criteria)
trusty_linux-lts-trusty: DNE
trusty/esm_linux-lts-trusty: DNE
xenial_linux-lts-trusty: DNE
bionic_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 (5.7~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 (4.15.0-1081.91)
eoan_linux-oem: ignored (reached end-of-life)
focal_linux-oem: DNE
devel_linux-oem: DNE

Patches_linux-oem-osp1:
upstream_linux-oem-osp1: released (5.7~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 (5.0.0-1052.57)
eoan_linux-oem-osp1: ignored (reached end-of-life)
focal_linux-oem-osp1: DNE
devel_linux-oem-osp1: DNE

Patches_linux-kvm:
upstream_linux-kvm: released (5.7~rc1)
precise/esm_linux-kvm: DNE
trusty_linux-kvm: DNE
trusty/esm_linux-kvm: DNE
xenial_linux-kvm: released (4.4.0-1071.78)
esm-infra/xenial_linux-kvm: released (4.4.0-1071.78)
bionic_linux-kvm: released (4.15.0-1060.61)
eoan_linux-kvm: released (5.3.0-1017.19)
focal_linux-kvm: released (5.4.0-1011.11)
devel_linux-kvm: not-affected (5.4.0-1015.15)

Patches_linux-aws:
upstream_linux-aws: released (5.7~rc1)
precise/esm_linux-aws: DNE
trusty_linux-aws: ignored (out of standard support)
trusty/esm_linux-aws: released (4.4.0-1067.71)
xenial_linux-aws: released (4.4.0-1107.118)
esm-infra/xenial_linux-aws: released (4.4.0-1107.118)
bionic_linux-aws: released (4.15.0-1067.71)
eoan_linux-aws: released (5.3.0-1019.21)
focal_linux-aws: released (5.4.0-1011.11)
devel_linux-aws: not-affected (5.4.0-1020.20)

Patches_linux-aws-5.0:
upstream_linux-aws-5.0: released (5.7~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: ignored (was needs-triage now end-of-life)
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 (5.7~rc1)
precise/esm_linux-aws-hwe: DNE
trusty_linux-aws-hwe: DNE
trusty/esm_linux-aws-hwe: DNE
xenial_linux-aws-hwe: released (4.15.0-1067.71~16.04.1)
esm-infra/xenial_linux-aws-hwe: released (4.15.0-1067.71~16.04.1)
bionic_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 (5.7~rc1)
precise/esm_linux-azure: DNE
trusty_linux-azure: ignored (out of standard support)
trusty/esm_linux-azure: ignored (was needed ESM criteria)
xenial_linux-azure: released (4.15.0-1083.93~16.04.1)
esm-infra/xenial_linux-azure: released (4.15.0-1083.93~16.04.1)
bionic_linux-azure: ignored (was needs-triage now end-of-life)
eoan_linux-azure: released (5.3.0-1022.23)
focal_linux-azure: released (5.4.0-1012.12)
devel_linux-azure: not-affected (5.4.0-1022.22)

Patches_linux-azure-5.3:
upstream_linux-azure-5.3: released (5.7~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: released (5.3.0-1022.23~18.04.1)
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 (5.7~rc1)
precise/esm_linux-azure-edge: DNE
trusty_linux-azure-edge: DNE
trusty/esm_linux-azure-edge: DNE
xenial_linux-azure-edge: DNE
bionic_linux-azure-edge: ignored (was needs-triage now end-of-life)
eoan_linux-azure-edge: DNE
focal_linux-azure-edge: DNE
devel_linux-azure-edge: DNE

Patches_linux-gcp:
upstream_linux-gcp: released (5.7~rc1)
precise/esm_linux-gcp: DNE
trusty_linux-gcp: DNE
trusty/esm_linux-gcp: DNE
xenial_linux-gcp: released (4.15.0-1071.81~16.04.1)
esm-infra/xenial_linux-gcp: released (4.15.0-1071.81~16.04.1)
bionic_linux-gcp: ignored (was needs-triage now end-of-life)
eoan_linux-gcp: released (5.3.0-1020.22)
focal_linux-gcp: released (5.4.0-1011.11)
devel_linux-gcp: not-affected (5.4.0-1021.21)

Patches_linux-gcp-5.3:
upstream_linux-gcp-5.3: released (5.7~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: released (5.3.0-1020.22~18.04.1)
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 (5.7~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)
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 (5.7~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 (4.15.0-1059.62)
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 (5.7~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 (5.0.0-1037.38)
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 (5.7~rc1)
precise/esm_linux-oracle: DNE
trusty_linux-oracle: DNE
trusty/esm_linux-oracle: DNE
xenial_linux-oracle: released (4.15.0-1039.43~16.04.1)
esm-infra/xenial_linux-oracle: released (4.15.0-1039.43~16.04.1)
bionic_linux-oracle: released (4.15.0-1039.43)
eoan_linux-oracle: released (5.3.0-1018.20)
focal_linux-oracle: released (5.4.0-1011.11)
devel_linux-oracle: not-affected (5.4.0-1021.21)

Patches_linux-oracle-5.0:
upstream_linux-oracle-5.0: released (5.7~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: ignored (was needs-triage now end-of-life)
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 (5.7~rc1)
precise/esm_linux-raspi2: DNE
trusty_linux-raspi2: DNE
trusty/esm_linux-raspi2: DNE
xenial_linux-raspi2: released (4.4.0-1133.142)
bionic_linux-raspi2: released (4.15.0-1062.66)
eoan_linux-raspi2: released (5.3.0-1025.27)
focal_linux-raspi2: ignored (was needs-triage now end-of-life)
devel_linux-raspi2: DNE

Patches_linux-snapdragon:
upstream_linux-snapdragon: released (5.7~rc1)
precise/esm_linux-snapdragon: DNE
trusty_linux-snapdragon: DNE
trusty/esm_linux-snapdragon: DNE
xenial_linux-snapdragon: released (4.4.0-1137.145)
bionic_linux-snapdragon: released (4.15.0-1079.86)
eoan_linux-snapdragon: DNE
focal_linux-snapdragon: DNE
devel_linux-snapdragon: DNE

Patches_linux-raspi2-5.3:
upstream_linux-raspi2-5.3: released (5.7~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: released (5.3.0-1026.28~18.04.1)
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 (5.7~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: released (5.6.0-1008.8)
devel_linux-oem-5.6: not-affected (5.6.0-1008.8)

Patches_linux-gke-5.3:
upstream_linux-gke-5.3: released (5.7~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: released (5.3.0-1020.22~18.04.1)
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 (5.7~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: released (5.3.0-1018.20~18.04.1)
eoan_linux-oracle-5.3: DNE
focal_linux-oracle-5.3: DNE
devel_linux-oracle-5.3: DNE

Patches_linux-riscv:
upstream_linux-riscv: released (5.7~rc1)
precise/esm_linux-riscv: DNE
trusty_linux-riscv: DNE
trusty/esm_linux-riscv: DNE
xenial_linux-riscv: DNE
bionic_linux-riscv: DNE
eoan_linux-riscv: DNE
focal_linux-riscv: released (5.4.0-26.30)
devel_linux-riscv: not-affected (5.4.0-27.31)

Patches_linux-raspi:
upstream_linux-raspi: released (5.7~rc1)
precise/esm_linux-raspi: DNE
trusty_linux-raspi: DNE
trusty/esm_linux-raspi: DNE
xenial_linux-raspi: DNE
bionic_linux-raspi: DNE
eoan_linux-raspi: DNE
focal_linux-raspi: released (5.4.0-1011.11)
devel_linux-raspi: not-affected (5.4.0-1012.12)

Patches_linux-azure-4.15:
upstream_linux-azure-4.15: released (5.7~rc1)
precise/esm_linux-azure-4.15: DNE
trusty_linux-azure-4.15: DNE
trusty/esm_linux-azure-4.15: DNE
xenial_linux-azure-4.15: DNE
bionic_linux-azure-4.15: released (4.15.0-1083.93)
eoan_linux-azure-4.15: DNE
focal_linux-azure-4.15: DNE
devel_linux-azure-4.15: DNE

Patches_linux-aws-5.3:
upstream_linux-aws-5.3: released (5.7~rc1)
precise/esm_linux-aws-5.3: DNE
trusty_linux-aws-5.3: DNE
trusty/esm_linux-aws-5.3: DNE
xenial_linux-aws-5.3: DNE
bionic_linux-aws-5.3: released (5.3.0-1019.21~18.04.1)
eoan_linux-aws-5.3: DNE
focal_linux-aws-5.3: DNE
devel_linux-aws-5.3: DNE

Patches_linux-gcp-4.15:
upstream_linux-gcp-4.15: released (5.7~rc1)
precise/esm_linux-gcp-4.15: DNE
trusty_linux-gcp-4.15: DNE
trusty/esm_linux-gcp-4.15: DNE
xenial_linux-gcp-4.15: DNE
bionic_linux-gcp-4.15: not-affected (4.15.0-1071.81)
eoan_linux-gcp-4.15: DNE
focal_linux-gcp-4.15: DNE
devel_linux-gcp-4.15: DNE

Patches_linux-hwe-5.4:
upstream_linux-hwe-5.4: released (5.7~rc1)
precise/esm_linux-hwe-5.4: DNE
trusty_linux-hwe-5.4: DNE
trusty/esm_linux-hwe-5.4: DNE
xenial_linux-hwe-5.4: DNE
bionic_linux-hwe-5.4: not-affected (5.4.0-37.41~18.04.1)
focal_linux-hwe-5.4: DNE
devel_linux-hwe-5.4: DNE

Patches_linux-raspi-5.4:
upstream_linux-raspi-5.4: released (5.7~rc1)
precise/esm_linux-raspi-5.4: DNE
trusty_linux-raspi-5.4: DNE
trusty/esm_linux-raspi-5.4: DNE
xenial_linux-raspi-5.4: DNE
bionic_linux-raspi-5.4: not-affected (5.4.0-1013.13~18.04.1)
focal_linux-raspi-5.4: DNE
devel_linux-raspi-5.4: DNE

Patches_linux-azure-5.4:
upstream_linux-azure-5.4: released (5.7~rc1)
precise/esm_linux-azure-5.4: DNE
trusty_linux-azure-5.4: DNE
trusty/esm_linux-azure-5.4: DNE
xenial_linux-azure-5.4: DNE
bionic_linux-azure-5.4: not-affected (5.4.0-1020.20~18.04.1)
focal_linux-azure-5.4: DNE
devel_linux-azure-5.4: DNE

Patches_linux-oracle-5.4:
upstream_linux-oracle-5.4: released (5.7~rc1)
precise/esm_linux-oracle-5.4: DNE
trusty_linux-oracle-5.4: DNE
trusty/esm_linux-oracle-5.4: DNE
xenial_linux-oracle-5.4: DNE
bionic_linux-oracle-5.4: not-affected (5.4.0-1019.19~18.04.1)
focal_linux-oracle-5.4: DNE
devel_linux-oracle-5.4: DNE

Patches_linux-gcp-5.4:
upstream_linux-gcp-5.4: released (5.7~rc1)
precise/esm_linux-gcp-5.4: DNE
trusty_linux-gcp-5.4: DNE
trusty/esm_linux-gcp-5.4: DNE
xenial_linux-gcp-5.4: DNE
bionic_linux-gcp-5.4: not-affected (5.4.0-1019.19~18.04.2)
focal_linux-gcp-5.4: DNE
devel_linux-gcp-5.4: DNE

Patches_linux-aws-5.4:
upstream_linux-aws-5.4: released (5.7~rc1)
precise/esm_linux-aws-5.4: DNE
trusty_linux-aws-5.4: DNE
trusty/esm_linux-aws-5.4: DNE
xenial_linux-aws-5.4: DNE
bionic_linux-aws-5.4: not-affected (5.4.0-1018.18~18.04.1)
focal_linux-aws-5.4: DNE
devel_linux-aws-5.4: DNE