CVE-2021-29155
Published: 20 April 2021
An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation is not correctly accounted for when restricting subsequent operations.
From the Ubuntu Security Team
Piotr Krysiuk and Benedict Schlueter discovered that the eBPF implementation in the Linux kernel performed out of bounds speculation on pointer arithmetic. A local attacker could use this to expose sensitive information.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux-hwe-5.8 Launchpad, Ubuntu, Debian |
focal |
Released
(5.8.0-59.66~20.04.1)
|
| impish |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-aws-5.8 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| focal |
Released
(5.8.0-1038.40~20.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure-5.8 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| focal |
Released
(5.8.0-1036.38~20.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gcp-5.8 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| focal |
Released
(5.8.0-1035.37~20.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oracle-5.8 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| focal |
Released
(5.8.0-1033.34~20.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-riscv-5.8 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| focal |
Released
(5.8.0-29.31~20.04.1)
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
groovy |
Released
(5.8.0-1035.37)
|
| impish |
Not vulnerable
(5.11.0-1008.8+21.10.1)
|
|
| focal |
Released
(5.4.0-1046.49)
|
|
| trusty |
Does not exist
|
|
| bionic |
Ignored
(superseded by linux-gcp-5.3)
|
|
| xenial |
Ignored
(was needs-triage ESM criteria)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Not vulnerable
(5.13.0-1005.6)
|
|
| hirsute |
Released
(5.11.0-1008.9)
|
|
| kinetic |
Not vulnerable
(5.15.0-1003.6)
|
|
| lunar |
Not vulnerable
(5.15.0-1003.6)
|
|
|
linux-oem-5.13 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
(5.13.0-1009.10)
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-aws-5.11 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| focal |
Not vulnerable
(5.11.0-1009.9~20.04.2)
|
|
| impish |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure-5.11 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| focal |
Not vulnerable
(5.11.0-1007.7~20.04.2)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-bluefield Launchpad, Ubuntu, Debian |
focal |
Released
(5.4.0-1013.16)
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| impish |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| jammy |
Not vulnerable
(5.15.0-1011.13)
|
|
|
linux-hwe-5.11 Launchpad, Ubuntu, Debian |
focal |
Not vulnerable
(5.11.0-22.23~20.04.1)
|
| upstream |
Released
(5.12~rc8)
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-riscv-5.11 Launchpad, Ubuntu, Debian |
focal |
Not vulnerable
(5.11.0-1015.16~20.04.1)
|
| upstream |
Released
(5.12~rc8)
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oracle-5.11 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| focal |
Not vulnerable
(5.11.0-1008.8~20.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(5.11.0-18.19+21.10.1)
|
| bionic |
Released
(4.15.0-151.157)
|
|
| focal |
Released
(5.4.0-77.86)
|
|
| groovy |
Released
(5.8.0-59.66)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| hirsute |
Released
(5.11.0-18.19)
|
|
| trusty |
Ignored
(was needed ESM criteria)
|
|
| xenial |
Ignored
(was needs-triage ESM criteria)
|
|
| jammy |
Not vulnerable
(5.13.0-19.19)
|
|
| kinetic |
Not vulnerable
(5.15.0-25.25)
|
|
| lunar |
Not vulnerable
(5.15.0-25.25)
|
|
|
Patches: Introduced by 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
|
linux-hwe Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| bionic |
Ignored
(replaced by linux-hwe-5.4)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| xenial |
Ignored
(was needs-triage ESM criteria)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-hwe-5.4 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| bionic |
Released
(5.4.0-77.86~18.04.1)
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Ignored
(superseded by linux-hwe)
|
|
| bionic |
Ignored
(superseded by linux-hwe-5.4)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| trusty |
Ignored
(was needed ESM criteria)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(5.11.0-1008.8+21.10.1)
|
| bionic |
Released
(4.15.0-1097.99)
|
|
| focal |
Released
(5.4.0-1041.42)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| groovy |
Released
(5.8.0-1030.32)
|
|
| hirsute |
Released
(5.11.0-1008.8)
|
|
| jammy |
Not vulnerable
(5.13.0-1004.4)
|
|
| xenial |
Ignored
(was needs-triage ESM criteria)
|
|
| kinetic |
Not vulnerable
(5.15.0-1004.4)
|
|
| lunar |
Not vulnerable
(5.15.0-1004.4)
|
|
|
linux-aws Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(5.11.0-1008.8+21.10.1)
|
| groovy |
Released
(5.8.0-1038.40)
|
|
| bionic |
Released
(4.15.0-1109.116)
|
|
| focal |
Released
(5.4.0-1051.53)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| hirsute |
Released
(5.11.0-1008.8)
|
|
| trusty |
Ignored
(was needed ESM criteria)
|
|
| xenial |
Ignored
(was needs-triage ESM criteria)
|
|
| jammy |
Not vulnerable
(5.13.0-1005.6)
|
|
| kinetic |
Not vulnerable
(5.15.0-1004.6)
|
|
| lunar |
Not vulnerable
(5.15.0-1004.6)
|
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Ignored
(superseded by linux-aws-5.3)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-aws-5.3 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Ignored
(superseded by linux-aws-5.4)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-aws-5.4 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| bionic |
Released
(5.4.0-1051.53~18.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| xenial |
Ignored
(was needs-triage ESM criteria)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(5.11.0-1006.6+21.10.1)
|
| bionic |
Ignored
(superseded by linux-azure-5.3)
|
|
| focal |
Released
(5.4.0-1051.53)
|
|
| groovy |
Released
(5.8.0-1036.38)
|
|
| hirsute |
Released
(5.11.0-1006.6)
|
|
| trusty |
Released
(4.15.0-1121.134~14.04.1)
|
|
| xenial |
Ignored
(was needs-triage ESM criteria)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Not vulnerable
(5.13.0-1006.7)
|
|
| kinetic |
Not vulnerable
(5.15.0-1003.4)
|
|
| lunar |
Not vulnerable
(5.15.0-1003.4)
|
|
|
linux-azure-4.15 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| bionic |
Released
(4.15.0-1121.134)
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Ignored
(superseded by linux-azure-5.4)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure-5.4 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| bionic |
Released
(5.4.0-1051.53~18.04.1)
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-dell300x Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| bionic |
Released
(4.15.0-1027.32)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Ignored
(superseded by linux-azure-5.3)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gcp-4.15 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| bionic |
Released
(4.15.0-1106.120)
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Ignored
(superseded by linux-gcp-5.4)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gcp-5.4 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| bionic |
Released
(5.4.0-1046.49~18.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Ignored
(superseded by linux-gcp-5.3)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| bionic |
Ignored
(was needs-triage now end-of-life)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| bionic |
Ignored
(was needs-triage now end-of-life)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| bionic |
Ignored
(was needed now end-of-life)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gke-5.4 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| bionic |
Released
(5.4.0-1046.48~18.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gkeop Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| focal |
Released
(5.4.0-1018.19)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gkeop-5.4 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| bionic |
Released
(5.4.0-1018.19~18.04.1)
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(5.11.0-1007.7+21.10.1)
|
| trusty |
Does not exist
|
|
| bionic |
Released
(4.15.0-1078.86)
|
|
| focal |
Released
(5.4.0-1048.52)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| groovy |
Released
(5.8.0-1033.34)
|
|
| hirsute |
Released
(5.11.0-1007.7)
|
|
| jammy |
Not vulnerable
(5.13.0-1008.10)
|
|
| xenial |
Ignored
(was needs-triage ESM criteria)
|
|
| kinetic |
Not vulnerable
(5.15.0-1002.4)
|
|
| lunar |
Not vulnerable
(5.15.0-1002.4)
|
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Ignored
(superseded by linux-oracle-5.3)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Ignored
(superseded by linux-oracle-5.4)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oracle-5.4 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| bionic |
Released
(5.4.0-1048.52~18.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| xenial |
Ignored
(superseded by linux-hwe)
|
|
| trusty |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| bionic |
Ignored
(was needs-triage now end-of-life)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oem-5.6 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| focal |
Ignored
(was needed now end-of-life)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oem-5.10 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| focal |
Released
(5.10.0-1029.30)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| bionic |
Ignored
(was needs-triage now end-of-life)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-raspi Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(5.11.0-1009.10+21.10.1)
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Released
(5.4.0-1038.41)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| groovy |
Released
(5.8.0-1029.32)
|
|
| hirsute |
Released
(5.11.0-1009.10)
|
|
| jammy |
Not vulnerable
(5.13.0-1008.9)
|
|
| kinetic |
Not vulnerable
(5.15.0-1005.5)
|
|
| lunar |
Not vulnerable
(5.15.0-1005.5)
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| focal |
Ignored
(replaced by linux-raspi)
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| xenial |
Ignored
(was needs-triage now end-of-life)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| bionic |
Released
(4.15.0-1092.98)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| bionic |
Ignored
(was needed now end-of-life)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-raspi-5.4 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| bionic |
Released
(5.4.0-1038.41~18.04.1)
|
|
| lunar |
Does not exist
|
|
|
linux-riscv Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(5.11.0-1009.9+21.10.1)
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Ignored
(was needs-triage now end-of-life)
|
|
| hirsute |
Released
(5.11.0-1009.9)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| groovy |
Released
(5.8.0-29.31)
|
|
| jammy |
Not vulnerable
(5.13.0-1004.4)
|
|
| kinetic |
Not vulnerable
(5.15.0-1007.7)
|
|
| lunar |
Not vulnerable
(5.15.0-1007.7)
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| bionic |
Released
(4.15.0-1109.118)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| xenial |
Ignored
(was needs-triage now end-of-life)
|
|
| lunar |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| focal |
Released
(5.4.0-1046.48)
|
|
| trusty |
Does not exist
|
|
| bionic |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| jammy |
Not vulnerable
(5.15.0-1002.2)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| kinetic |
Does not exist
|
|
| xenial |
Ignored
(reached end of standard support)
|
|
| lunar |
Does not exist
|
|
|
linux-ibm Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| focal |
Not vulnerable
(5.4.0-1003.4)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Not vulnerable
(5.15.0-1002.2)
|
|
| kinetic |
Not vulnerable
(5.15.0-1002.2)
|
|
| lunar |
Not vulnerable
(5.15.0-1002.2)
|
|
|
linux-gcp-5.11 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| focal |
Not vulnerable
(5.11.0-1009.10~20.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oem-5.14 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| focal |
Not vulnerable
(5.14.0-1004.4)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-intel-5.13 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| focal |
Not vulnerable
(5.13.0-1007.7)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure-5.13 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| impish |
Does not exist
|
|
| focal |
Not vulnerable
(5.13.0-1009.10~20.04.2)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-hwe-5.13 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| impish |
Does not exist
|
|
| focal |
Not vulnerable
(5.13.0-21.21~20.04.1)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-aws-5.13 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| impish |
Does not exist
|
|
| focal |
Not vulnerable
(5.13.0-1008.9~20.04.2)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-fips Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| xenial |
Ignored
(out of standard support)
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oracle-5.13 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| impish |
Does not exist
|
|
| focal |
Not vulnerable
(5.13.0-1011.13~20.04.2)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gcp-5.13 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| impish |
Does not exist
|
|
| focal |
Not vulnerable
(5.13.0-1008.9~20.04.3)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-ibm-5.4 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| focal |
Does not exist
|
|
| impish |
Does not exist
|
|
| bionic |
Not vulnerable
(5.4.0-1010.11~18.04.2)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure-fde Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| impish |
Does not exist
|
|
| upstream |
Released
(5.12~rc8)
|
|
| jammy |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| focal |
Released
(5.4.0-1051.53)
|
|
|
linux-lowlatency Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Not vulnerable
(5.15.0-22.22)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| kinetic |
Not vulnerable
(5.15.0-24.24)
|
|
| lunar |
Not vulnerable
(5.15.0-24.24)
|
|
|
linux-oem-5.17 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Not vulnerable
(5.17.0-1003.3)
|
|
| upstream |
Released
(5.12~rc8)
|
|
| kinetic |
Not vulnerable
(5.17.0-1003.3)
|
|
| lunar |
Does not exist
|
|
|
linux-intel-iotg Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| impish |
Does not exist
|
|
| upstream |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| jammy |
Not vulnerable
(5.15.0-1004.6)
|
|
|
linux-intel-iotg-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| upstream |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| focal |
Not vulnerable
(5.15.0-1003.5~20.04.1)
|
|
|
linux-lowlatency-hwe-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
|
|
| jammy |
Does not exist
|
|
| upstream |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-hwe-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
|
|
| jammy |
Does not exist
|
|
| upstream |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-aws-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| jammy |
Does not exist
|
|
| upstream |
Needs triage
|
|
| focal |
Not vulnerable
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gcp-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
|
|
| jammy |
Does not exist
|
|
| upstream |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-gke-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
|
|
| jammy |
Does not exist
|
|
| upstream |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
|
|
| jammy |
Does not exist
|
|
| upstream |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-oracle-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
|
|
| jammy |
Does not exist
|
|
| upstream |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
|
linux-azure-fde-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| upstream |
Needs triage
|
|
| lunar |
Does not exist
|
|
| focal |
Not vulnerable
(5.15.0-1007.8~20.04.1)
|
|
|
linux-oem-6.0 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| jammy |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| upstream |
Needs triage
|
|
| lunar |
Does not exist
|
|
|
linux-oem-6.1 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Does not exist
|
|
| upstream |
Needs triage
|
|
| lunar |
Does not exist
|
|
|
linux-hwe-5.19 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Does not exist
|
|
| upstream |
Needs triage
|
|
| lunar |
Does not exist
|
|
|
linux-lowlatency-hwe-5.19 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Does not exist
|
|
| upstream |
Needs triage
|
|
| lunar |
Does not exist
|
|
|
linux-azure-5.19 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Does not exist
|
|
| upstream |
Needs triage
|
|
| lunar |
Does not exist
|
|
|
linux-iot Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| upstream |
Needs triage
|
|
|
linux-riscv-5.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| upstream |
Needs triage
|
|
|
linux-azure-fde-5.19 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| upstream |
Needs triage
|
|
|
linux-xilinx-zynqmp Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| focal |
Not vulnerable
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| upstream |
Needs triage
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29155
- https://www.openwall.com/lists/oss-security/2021/04/18/4
- https://www.kernel.org
- https://ubuntu.com/security/notices/USN-4977-1
- https://ubuntu.com/security/notices/USN-4983-1
- https://ubuntu.com/security/notices/USN-4999-1
- NVD
- Launchpad
- Debian