CVE-2021-47490 : In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fi

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix memleak in ttm_transfered_destroy We need to cleanup the fences for ghost objects as well. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214029 Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214447

Published 2024-05-22 09:15:11

Updated 2025-01-24 16:15:28

Source Linux

View at NVD, CVE.org

Products affected by CVE-2021-47490

Linux » Linux Kernel
Versions from including (>=) 5.11 and before (<) 5.14.16
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 5.5 and before (<) 5.10.77
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions before (<) 5.4.157
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.15 Update RC1
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.15 Update RC2
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.15 Update RC3
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.15 Update RC4
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.15 Update RC5
cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.15 Update RC6
cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 5.15 Update RC7
cpe:2.3:o:linux:linux_kernel:5.15:rc7:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-47490

EPSS FAQ

0.05%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 12 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-47490

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	NIST	2025-01-06
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-47490

CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-47490

https://git.kernel.org/stable/c/132a3d998d6753047f22152731fba2b0d6b463dd

drm/ttm: fix memleak in ttm_transfered_destroy - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/c21b4002214c1c7e7b627b9b53375612f7aab6db

drm/ttm: fix memleak in ttm_transfered_destroy - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/bd99782f3ca491879e8524c89b1c0f40071903bd

drm/ttm: fix memleak in ttm_transfered_destroy - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/0db55f9a1bafbe3dac750ea669de9134922389b5

drm/ttm: fix memleak in ttm_transfered_destroy - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/960b1fdfc39aba8f41e9e27b2de0c925c74182d9

Revert "drm/ttm: fix memleak in ttm_transfered_destroy" - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/bbc920fb320f1c241cc34ac85edaa0058922246a

Revert "drm/ttm: fix memleak in ttm_transfered_destroy" - kernel/git/stable/linux.git - Linux kernel stable tree
Patch

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Vulnerability Details : CVE-2021-47490

Products affected by CVE-2021-47490

Exploit prediction scoring system (EPSS) score for CVE-2021-47490

CVSS scores for CVE-2021-47490

CWE ids for CVE-2021-47490

References for CVE-2021-47490