CVE-2021-47142

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-47142
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47142.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-47142
Related
Published
2024-03-25T09:15:08Z
Modified
2024-09-18T01:00:21Z
Summary
[none]
Details

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 DEBUGPAGEALLOC NOPTI [ 1235.989074] Call Trace: [ 1235.991751] sgfreetable+0x17/0x20 [ 1235.995667] amdgputtmbackendunbind.cold+0x4d/0xf7 [amdgpu] [ 1236.002288] amdgputtmbackenddestroy+0x29/0x130 [amdgpu] [ 1236.008464] ttmttdestroy+0x1e/0x30 [ttm] [ 1236.013066] ttmbocleanupmemtypeuse+0x51/0xa0 [ttm] [ 1236.018783] ttmborelease+0x262/0xa50 [ttm] [ 1236.023547] ttmboput+0x82/0xd0 [ttm] [ 1236.027766] amdgpubounref+0x26/0x50 [amdgpu] [ 1236.032809] amdgpuamdkfdgpuvmallocmemoryofgpu+0x7aa/0xd90 [amdgpu] [ 1236.040400] kfdioctlallocmemoryofgpu+0xe2/0x330 [amdgpu] [ 1236.046912] kfd_ioctl+0x463/0x690 [amdgpu]

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.46-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.14.6-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.14.6-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}