CVE-2021-47142

Source
https://cve.org/CVERecord?id=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
Downstream
Related
Published
2024-03-25T09:15:08.843Z
Modified
2026-03-10T23:51:32.546846Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
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

Git /

Affected ranges

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47142.json"
unresolved_ranges
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "4.4.271"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.9.0"
            },
            {
                "fixed": "4.9.271"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.14.0"
            },
            {
                "fixed": "4.14.235"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.19.0"
            },
            {
                "fixed": "4.19.193"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.4.0"
            },
            {
                "fixed": "5.4.124"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.10.0"
            },
            {
                "fixed": "5.10.42"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.12.0"
            },
            {
                "fixed": "5.12.9"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.13-rc1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.13-rc2"
            }
        ]
    }
]