CVE-2021-47142

EUVD-2021-33790

25.03.2024, 09:15

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: Fix a use-after-free

looks like we forget to set ttm->sg to NULL.
Hit panic below

[ 1235.844104] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI
[ 1235.989074] Call Trace:
[ 1235.991751]  sg_free_table+0x17/0x20
[ 1235.995667]  amdgpu_ttm_backend_unbind.cold+0x4d/0xf7 [amdgpu]
[ 1236.002288]  amdgpu_ttm_backend_destroy+0x29/0x130 [amdgpu]
[ 1236.008464]  ttm_tt_destroy+0x1e/0x30 [ttm]
[ 1236.013066]  ttm_bo_cleanup_memtype_use+0x51/0xa0 [ttm]
[ 1236.018783]  ttm_bo_release+0x262/0xa50 [ttm]
[ 1236.023547]  ttm_bo_put+0x82/0xd0 [ttm]
[ 1236.027766]  amdgpu_bo_unref+0x26/0x50 [amdgpu]
[ 1236.032809]  amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x7aa/0xd90 [amdgpu]
[ 1236.040400]  kfd_ioctl_alloc_memory_of_gpu+0xe2/0x330 [amdgpu]
[ 1236.046912]  kfd_ioctl+0x463/0x690 [amdgpu]

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	5.5 MEDIUM	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 1%

Affected Products (NVD)

Vendor	Product	Version
linux	linux_kernel	𝑥 < 4.4.271
linux	linux_kernel	4.9.0 ≤ 𝑥 < 4.9.271
linux	linux_kernel	4.14.0 ≤ 𝑥 < 4.14.235
linux	linux_kernel	4.19.0 ≤ 𝑥 < 4.19.193
linux	linux_kernel	5.4.0 ≤ 𝑥 < 5.4.124
linux	linux_kernel	5.10.0 ≤ 𝑥 < 5.10.42
linux	linux_kernel	5.12.0 ≤ 𝑥 < 5.12.9
linux	linux_kernel	5.13:rc1
linux	linux_kernel	5.13:rc2

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

linux

bookworm	6.1.106-3 fixed
bookworm (security)	6.1.112-1 fixed
bullseye	5.10.223-1 fixed
bullseye (security)	5.10.226-1 fixed
sid	6.11.5-1 fixed
trixie	6.11.5-1 fixed

Ubuntu Releases

Ubuntu Product

Codename

linux

bionic	pending
focal	Fixed 5.4.0-80.90 released
jammy	not-affected
mantic	not-affected
noble	not-affected
trusty	ignored
xenial	ignored

linux-allwinner-5.19

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-aws

bionic	pending
focal	Fixed 5.4.0-1054.57 released
jammy	not-affected
mantic	not-affected
noble	not-affected
trusty	ignored
xenial	ignored

linux-aws-5.0

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-aws-5.11

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-aws-5.13

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-aws-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-aws-5.19

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-aws-5.3

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-aws-5.4

bionic	pending
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-aws-5.8

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-aws-6.2

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-aws-6.5

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-aws-fips

bionic	dne
focal	dne
jammy	dne
mantic	dne
noble	dne
trusty	dne
xenial	dne

linux-aws-hwe

focal	dne
jammy	dne
mantic	dne
noble	dne
xenial	Fixed 4.15.0-1109.116~16.04.1 released

linux-azure

bionic	ignored
focal	Fixed 5.4.0-1055.57 released
jammy	not-affected
mantic	not-affected
noble	not-affected
trusty	Fixed 4.15.0-1121.134~14.04.1 released
xenial	Fixed 4.15.0-1121.134~16.04.1 released

linux-azure-4.15

bionic	pending
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-azure-5.11

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-azure-5.13

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-azure-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-azure-5.19

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-azure-5.3

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-azure-5.4

bionic	pending
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-azure-5.8

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-azure-6.2

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-azure-6.5

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-azure-edge

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-azure-fde

focal	ignored
jammy	not-affected
mantic	dne
noble	dne

linux-azure-fde-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-azure-fde-5.19

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-azure-fde-6.2

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-azure-fips

bionic	dne
focal	dne
jammy	dne
mantic	dne
noble	dne
trusty	dne
xenial	dne

linux-bluefield

focal	Fixed 5.4.0-1016.19 released
jammy	dne
mantic	dne
noble	dne

linux-fips

focal	dne
jammy	dne
mantic	dne
noble	dne

linux-gcp

bionic	ignored
focal	Fixed 5.4.0-1049.53 released
jammy	not-affected
mantic	not-affected
noble	not-affected
xenial	Fixed 4.15.0-1106.120~16.04.1 released

linux-gcp-4.15

bionic	pending
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-gcp-5.11

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-gcp-5.13

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-gcp-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-gcp-5.19

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-gcp-5.3

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-gcp-5.4

bionic	pending
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-gcp-5.8

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-gcp-6.2

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-gcp-6.5

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-gcp-fips

bionic	dne
focal	dne
jammy	dne
mantic	dne
noble	dne
trusty	dne
xenial	dne

linux-gke

focal	ignored
jammy	not-affected
mantic	dne
noble	not-affected

linux-gke-4.15

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-gke-5.15

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-gke-5.4

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-gkeop

focal	Fixed 5.4.0-1021.22 released
jammy	not-affected
mantic	dne
noble	dne

linux-gkeop-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-gkeop-5.4

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-hwe

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne
xenial	Fixed 4.15.0-151.157~16.04.1 released

linux-hwe-5.11

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-hwe-5.13

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-hwe-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-hwe-5.19

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-hwe-5.4

bionic	pending
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-hwe-5.8

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-hwe-6.2

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-hwe-6.5

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-hwe-6.8

bionic	dne
focal	dne
jammy	not-affected
noble	dne
trusty	dne
xenial	dne

linux-hwe-edge

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne
xenial	ignored

linux-ibm

focal	not-affected
jammy	not-affected
mantic	ignored
noble	not-affected

linux-ibm-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-ibm-5.4

bionic	not-affected
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-intel

bionic	dne
focal	dne
jammy	dne
mantic	dne
noble	not-affected
trusty	dne
xenial	dne

linux-intel-5.13

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-intel-iot-realtime

bionic	dne
focal	dne
jammy	dne
noble	dne
trusty	dne
xenial	dne

linux-intel-iotg

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-intel-iotg-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-iot

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-kvm

bionic	pending
focal	Fixed 5.4.0-1044.46 released
jammy	not-affected
mantic	dne
noble	dne
xenial	ignored

linux-laptop

focal	dne
jammy	dne
mantic	not-affected
noble	dne

linux-lowlatency

focal	dne
jammy	not-affected
mantic	not-affected
noble	not-affected

linux-lowlatency-hwe-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-lowlatency-hwe-5.19

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-lowlatency-hwe-6.2

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-lowlatency-hwe-6.5

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-lowlatency-hwe-6.8

bionic	dne
focal	dne
jammy	not-affected
noble	dne
trusty	dne
xenial	dne

linux-lts-xenial

focal	dne
jammy	dne
mantic	dne
noble	dne
trusty	ignored

linux-nvidia

focal	dne
jammy	not-affected
mantic	dne
noble	not-affected

linux-nvidia-6.2

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-nvidia-6.5

bionic	dne
focal	dne
jammy	not-affected
mantic	dne
noble	dne
trusty	dne
xenial	dne

linux-nvidia-6.8

bionic	dne
focal	dne
jammy	not-affected
noble	dne
trusty	dne
xenial	dne

linux-nvidia-lowlatency

bionic	dne
focal	dne
jammy	dne
noble	not-affected
trusty	dne
xenial	dne

linux-oem

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-oem-5.10

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-oem-5.13

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-oem-5.14

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-oem-5.17

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-oem-5.6

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-oem-6.0

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-oem-6.1

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-oem-6.5

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-oem-6.8

bionic	dne
focal	dne
jammy	dne
mantic	dne
noble	not-affected
trusty	dne
xenial	dne

linux-oracle

bionic	pending
focal	Fixed 5.4.0-1052.56 released
jammy	not-affected
mantic	not-affected
noble	not-affected
xenial	Fixed 4.15.0-1078.86~16.04.1 released

linux-oracle-5.0

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-oracle-5.11

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-oracle-5.13

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-oracle-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-oracle-5.3

bionic	ignored
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-oracle-5.4

bionic	pending
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-oracle-5.8

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-oracle-6.5

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-raspi

focal	Fixed 5.4.0-1041.45 released
jammy	not-affected
mantic	not-affected
noble	not-affected

linux-raspi-5.4

bionic	pending
focal	dne
jammy	dne
mantic	dne
noble	dne

linux-raspi-realtime

bionic	dne
focal	dne
jammy	dne
noble	dne
trusty	dne
xenial	dne

linux-raspi2

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-realtime

bionic	dne
focal	dne
jammy	ignored
noble	dne
trusty	dne
xenial	dne

linux-riscv

focal	ignored
jammy	ignored
mantic	not-affected
noble	not-affected

linux-riscv-5.11

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-riscv-5.15

focal	not-affected
jammy	dne
mantic	dne
noble	dne

linux-riscv-5.19

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-riscv-5.8

focal	ignored
jammy	dne
mantic	dne
noble	dne

linux-riscv-6.5

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-riscv-6.8

bionic	dne
focal	dne
jammy	not-affected
noble	dne
trusty	dne
xenial	dne

linux-starfive

focal	dne
jammy	dne
mantic	not-affected
noble	dne

linux-starfive-5.19

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-starfive-6.2

focal	dne
jammy	ignored
mantic	dne
noble	dne

linux-starfive-6.5

focal	dne
jammy	not-affected
mantic	dne
noble	dne

linux-xilinx-zynqmp

focal	not-affected
jammy	not-affected
mantic	dne
noble	dne

Common Weakness Enumeration

CWE-416 - Use After Free
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

References

https://git.kernel.org/stable/c/0707c3fea8102d211631ba515ef2159707561b0d

https://git.kernel.org/stable/c/1e5c37385097c35911b0f8a0c67ffd10ee1af9a2

https://git.kernel.org/stable/c/3293cf3513d69f00c14d43e2020826d45ea0e46a

https://git.kernel.org/stable/c/7398c2aab4da960761ec182d04d6d5abbb4a226e

https://git.kernel.org/stable/c/952ab3f9f48eb0e8050596d41951cf516be6b122

https://git.kernel.org/stable/c/a849e218556f932576c0fb1c5a88714b61709a17

https://git.kernel.org/stable/c/d4ea141fd4b40636a8326df5a377d9c5cf9b3faa

https://git.kernel.org/stable/c/f98cdf084405333ee2f5be548a91b2d168e49276