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CVE-2021-47117

Published: 15 March 2024

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed We got follow bug_on when run fsstress with injecting IO fault: [130747.323114] kernel BUG at fs/ext4/extents_status.c:762! [130747.323117] Internal error: Oops - BUG: 0 [#1] SMP ...... [130747.334329] Call trace: [130747.334553] ext4_es_cache_extent+0x150/0x168 [ext4] [130747.334975] ext4_cache_extents+0x64/0xe8 [ext4] [130747.335368] ext4_find_extent+0x300/0x330 [ext4] [130747.335759] ext4_ext_map_blocks+0x74/0x1178 [ext4] [130747.336179] ext4_map_blocks+0x2f4/0x5f0 [ext4] [130747.336567] ext4_mpage_readpages+0x4a8/0x7a8 [ext4] [130747.336995] ext4_readpage+0x54/0x100 [ext4] [130747.337359] generic_file_buffered_read+0x410/0xae8 [130747.337767] generic_file_read_iter+0x114/0x190 [130747.338152] ext4_file_read_iter+0x5c/0x140 [ext4] [130747.338556] __vfs_read+0x11c/0x188 [130747.338851] vfs_read+0x94/0x150 [130747.339110] ksys_read+0x74/0xf0 This patch's modification is according to Jan Kara's suggestion in: https://patchwork.ozlabs.org/project/linux-ext4/patch/20210428085158.3728201-1-yebin10@huawei.com/ "I see. Now I understand your patch. Honestly, seeing how fragile is trying to fix extent tree after split has failed in the middle, I would probably go even further and make sure we fix the tree properly in case of ENOSPC and EDQUOT (those are easily user triggerable). Anything else indicates a HW problem or fs corruption so I'd rather leave the extent tree as is and don't try to fix it (which also means we will not create overlapping extents)."

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

mantic Needs triage

trusty Needs triage

upstream Needs triage

xenial Needs triage

Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 082cd4ec240b8734a82a89ffb890216ac98fec68
linux-allwinner-5.19
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(end of kernel support)
mantic Does not exist

upstream Ignored
(end of life)
linux-aws
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

mantic Needs triage

trusty Needs triage

upstream Needs triage

xenial Needs triage

linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-aws-5.3)
linux-aws-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-aws-5.13)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-aws-5.13)
linux-aws-5.13
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-aws-5.15)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-aws-5.15)
linux-aws-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-aws-5.19
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-aws-6.2)
mantic Does not exist

upstream Ignored
(superseded by linux-aws-6.2)
linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.4)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-aws-5.4)
linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-aws-5.8
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-aws-5.11)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-aws-5.11)
linux-aws-6.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-aws-6.5)
mantic Does not exist

upstream Ignored
(superseded by linux-aws-6.5)
linux-aws-6.5
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-aws-hwe
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

xenial Needs triage

linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal Needs triage

jammy Needs triage

mantic Needs triage

trusty Needs triage

upstream Needs triage

xenial Needs triage

linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-azure-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-azure-5.13)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-azure-5.13)
linux-azure-5.13
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-azure-5.15)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-azure-5.15)
linux-azure-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-azure-5.19
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-azure-6.2)
mantic Does not exist

upstream Ignored
(superseded by linux-azure-6.2)
linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.4)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-azure-5.4)
linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-azure-5.8
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-azure-5.11)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-azure-5.11)
linux-azure-6.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-azure-6.5)
mantic Does not exist

upstream Ignored
(superseded by linux-azure-6.5)
linux-azure-6.5
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-azure-5.3)
linux-azure-fde
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-azure-fde-5.15)
jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-azure-fde-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-azure-fde-5.19
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-azure-fde-6.2)
mantic Does not exist

upstream Ignored
(superseded by linux-azure-fde-6.2)
linux-azure-fde-6.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(replaced by linux-azure-6.5)
mantic Does not exist

upstream Ignored
(replaced by linux-azure-6.5)
linux-bluefield
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-fips
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.3)
focal Needs triage

jammy Needs triage

mantic Needs triage

upstream Needs triage

xenial Needs triage

linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-gcp-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-gcp-5.13)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-gcp-5.13)
linux-gcp-5.13
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-gcp-5.15)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-gcp-5.15)
linux-gcp-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-gcp-5.19
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-gcp-6.2)
mantic Does not exist

upstream Ignored
(superseded by linux-gcp-6.2)
linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.4)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-gcp-5.4)
linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-gcp-5.8
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-gcp-5.11)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-gcp-5.11)
linux-gcp-6.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-gcp-6.5)
mantic Does not exist

upstream Ignored
(superseded by linux-gcp-6.5)
linux-gcp-6.5
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-gke
Launchpad, Ubuntu, Debian
focal Ignored
(end of kernel support)
jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gke-5.0)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-gke-5.0)
linux-gke-5.15
Launchpad, Ubuntu, Debian
focal Ignored
(end of kernel support)
jammy Does not exist

mantic Does not exist

upstream Ignored
(end of life)
linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(end of kernel support)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(end of life)
linux-gkeop
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-gkeop-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(end of kernel support)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(end of life)
linux-hwe
Launchpad, Ubuntu, Debian
bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

xenial Needs triage

linux-hwe-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-hwe-5.13)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-hwe-5.13)
linux-hwe-5.13
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-hwe-5.15)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-hwe-5.15)
linux-hwe-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-hwe-5.19
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-hwe-6.2)
mantic Does not exist

upstream Ignored
(superseded by linux-hwe-6.2)
linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-hwe-5.8
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-hwe-5.11)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-hwe-5.11)
linux-hwe-6.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-hwe-6.5)
mantic Does not exist

upstream Ignored
(superseded by linux-hwe-6.5)
linux-hwe-6.5
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-hwe-5.4)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(end of life)
xenial Ignored
(superseded by linux-hwe)
linux-ibm
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Needs triage

mantic Ignored
(end of kernel support)
upstream Needs triage

linux-ibm-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-ibm-5.4
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-intel-5.13
Launchpad, Ubuntu, Debian
focal Ignored
(end of kernel support)
jammy Does not exist

mantic Does not exist

upstream Ignored
(end of life)
linux-intel-iotg
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-intel-iotg-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-iot
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-kvm
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

mantic Does not exist

upstream Needs triage

xenial Needs triage

linux-laptop
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Does not exist

mantic Needs triage

upstream Needs triage

linux-lowlatency
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Needs triage

upstream Needs triage

linux-lowlatency-hwe-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-lowlatency-hwe-5.19
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-lowlatency-hwe-6.2)
mantic Does not exist

upstream Ignored
(superseded by linux-lowlatency-hwe-6.2)
linux-lowlatency-hwe-6.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-lowlatency-hwe-6.5)
mantic Does not exist

upstream Ignored
(superseded by linux-lowlatency-hwe-6.5)
linux-lowlatency-hwe-6.5
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-lts-xenial
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Does not exist

mantic Does not exist

trusty Needs triage

upstream Needs triage

linux-nvidia
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-nvidia-6.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-nvidia-6.5)
mantic Does not exist

upstream Ignored
(superseded by linux-nvidia-6.5)
linux-nvidia-6.5
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Needs triage

mantic Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(end of life)
linux-oem-5.10
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-oem-5.13)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-oem-5.13)
linux-oem-5.13
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-oem-5.14)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-oem-5.14)
linux-oem-5.14
Launchpad, Ubuntu, Debian
focal Ignored
(replaced by linux-hwe-5.15)
jammy Does not exist

mantic Does not exist

upstream Ignored
(replaced by linux-hwe-5.15)
linux-oem-5.17
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-oem-6.1)
mantic Does not exist

upstream Ignored
(superseded by linux-oem-6.1)
linux-oem-5.6
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-oem-5.10)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-oem-5.10)
linux-oem-6.0
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-oem-6.1)
mantic Does not exist

upstream Ignored
(superseded by linux-oem-6.1)
linux-oem-6.1
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-oem-6.5, was needs-triage)
mantic Does not exist

upstream Ignored
(superseded by linux-oem-6.5, was needs-triage)
linux-oem-6.5
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-oracle
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

mantic Needs triage

upstream Needs triage

xenial Needs triage

linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-oracle-5.3)
linux-oracle-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-oracle-5.13)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-oracle-5.13)
linux-oracle-5.13
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-oracle-5.15)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-oracle-5.15)
linux-oracle-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.4)
focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-oracle-5.4)
linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-oracle-5.8
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-oracle-5.11)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-oracle-5.11)
linux-oracle-6.5
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-raspi
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Needs triage

mantic Needs triage

upstream Needs triage

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-raspi2
Launchpad, Ubuntu, Debian
focal Ignored
(replaced by linux-raspi)
jammy Does not exist

mantic Does not exist

upstream Ignored
(replaced by linux-raspi)
linux-riscv
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-riscv-5.8)
jammy Ignored
(end of kernel support)
mantic Needs triage

upstream Needs triage

linux-riscv-5.11
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-riscv-5.13)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-riscv-5.13)
linux-riscv-5.15
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Does not exist

mantic Does not exist

upstream Needs triage

linux-riscv-5.19
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(end of kernel support)
mantic Does not exist

upstream Ignored
(end of life)
linux-riscv-5.8
Launchpad, Ubuntu, Debian
focal Ignored
(superseded by linux-riscv-5.11)
jammy Does not exist

mantic Does not exist

upstream Ignored
(superseded by linux-riscv-5.11)
linux-riscv-6.5
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-starfive
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Does not exist

mantic Needs triage

upstream Needs triage

linux-starfive-5.19
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(end of kernel support)
mantic Does not exist

upstream Ignored
(end of life)
linux-starfive-6.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Ignored
(superseded by linux-starfive-6.5)
mantic Does not exist

upstream Ignored
(superseded by linux-starfive-6.5)
linux-starfive-6.5
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Needs triage

mantic Does not exist

upstream Needs triage

linux-xilinx-zynqmp
Launchpad, Ubuntu, Debian
focal Needs triage

jammy Needs triage

mantic Does not exist

upstream Needs triage