CVE-2021-47644
Detail
Modified After Enrichment This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
In the Linux kernel, the following vulnerability has been resolved:
media: staging: media: zoran: move videodev alloc
Move some code out of zr36057_init() and create new functions for handling
zr->video_dev. This permit to ease code reading and fix a zr->video_dev
memory leak.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving NIST webspace.
We have provided these links to other web sites because they
may have information that would be of interest to you. No
inferences should be drawn on account of other sites being
referenced, or not, from this page. There may be other web
sites that are more appropriate for your purpose. NIST does
not necessarily endorse the views expressed, or concur with
the facts presented on these sites. Further, NIST does not
endorse any commercial products that may be mentioned on
these sites. Please address comments about this page to [email protected]
Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-401
Missing Release of Memory after Effective Lifetime
NIST
CISA-ADP
Change History
7 change records found show changes
CVE Modified by kernel.org
8/10/2026 11:17:33 PM
Action
Type
Old Value
New Value
Removed
Reference
https://git.kernel.org/stable/c/82e3a496eb56da0b9f29fdc5b63cedb3289e91de
Removed
Reference Type
https://git.kernel.org/stable/c/82e3a496eb56da0b9f29fdc5b63cedb3289e91de Types: Patch
Changed
Affected
Record truncated, showing 2048 of 2206 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/staging/media/zoran/zoran.h","drivers/staging/media/zoran/zoran_card.c","drivers/staging/media/zoran/zoran_driver.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"8dce4b265a5357731058f69645840dabc718c687","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"bd01629315ffd5b63da91d0bd529a77d30e55028","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"ff3357bffd9fb78f59762d8955afc7382a279079","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"c1ba65100a359fe28cfe37e09e10c99f247cbf1e","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"1e501ec38796f43e995731d1bcd4173cb1ccfce0","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"82e3a496eb56da0b9f29fdc5b63cedb3289e91de","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/staging/media/zoran/zoran.h","drivers/staging/media/zoran/zoran_card.c","drivers/staging/media/zoran/zoran_driver.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.12","status":"affected"},{"version":"5.10","status":"affected"},{"version":"0","lessThan":"2.6.12","versionType":"semver","status":"unaffected"},{"version":"5.2","lessThan":"5.10","versionType":"semver","status":"unaffected"},{"version":"5.10.110","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.33","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"5.16.19","lessThanOrEqual":"5.16.*","versionType":"semver","status":"unaffected"},{"version":"5.17.2","lessThanOrEqual":"5
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/staging/media/zoran/zoran.h","drivers/staging/media/zoran/zoran_card.c","drivers/staging/media/zoran/zoran_driver.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"8dce4b265a5357731058f69645840dabc718c687","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"bd01629315ffd5b63da91d0bd529a77d30e55028","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"ff3357bffd9fb78f59762d8955afc7382a279079","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c1ba65100a359fe28cfe37e09e10c99f247cbf1e","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"1e501ec38796f43e995731d1bcd4173cb1ccfce0","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/staging/media/zoran/zoran.h","drivers/staging/media/zoran/zoran_card.c","drivers/staging/media/zoran/zoran_driver.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","versionType":"semver","status":"unaffected"},{"version":"5.10.110","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.33","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"5.16.19","lessThanOrEqual":"5.16.*","versionType":"semver","status":"unaffected"},{"version":"5.17.2","lessThanOrEqual":"5.17.*","versionType":"semver","status":"unaffected"},{"version":"5.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by CISA-ADP
6/17/2026 12:18:13 AM
Action
Type
Old Value
New Value
Added
SSVC
{"timestamp":"2025-10-01T19:50:36.427391Z","id":"CVE-2021-47644","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}
CVE Modified by kernel.org
6/17/2026 12:18:13 AM
Action
Type
Old Value
New Value
Added
Affected
Record truncated, showing 2048 of 2206 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/staging/media/zoran/zoran.h","drivers/staging/media/zoran/zoran_card.c","drivers/staging/media/zoran/zoran_driver.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"8dce4b265a5357731058f69645840dabc718c687","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"bd01629315ffd5b63da91d0bd529a77d30e55028","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"ff3357bffd9fb78f59762d8955afc7382a279079","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"c1ba65100a359fe28cfe37e09e10c99f247cbf1e","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"1e501ec38796f43e995731d1bcd4173cb1ccfce0","versionType":"git","status":"affected"},{"version":"61c3b19f7b9eb7c7838fd35f86566230fefd6550","lessThan":"82e3a496eb56da0b9f29fdc5b63cedb3289e91de","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/staging/media/zoran/zoran.h","drivers/staging/media/zoran/zoran_card.c","drivers/staging/media/zoran/zoran_driver.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.12","status":"affected"},{"version":"5.10","status":"affected"},{"version":"0","lessThan":"2.6.12","versionType":"semver","status":"unaffected"},{"version":"5.2","lessThan":"5.10","versionType":"semver","status":"unaffected"},{"version":"5.10.110","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.33","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"5.16.19","lessThanOrEqual":"5.16.*","versionType":"semver","status":"unaffected"},{"version":"5.17.2","lessThanOrEqual":"5
CVE Modified by CISA-ADP
10/01/2025 4:15:41 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added
CWE
CWE-401
CVE Modified by kernel.org
9/29/2025 8:15:44 AM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/8dce4b265a5357731058f69645840dabc718c687
Initial Analysis by NIST
3/18/2025 3:09:34 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added
CWE
CWE-401
Added
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.33
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.17 up to (excluding) 5.17.2
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.19
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.110
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/1e501ec38796f43e995731d1bcd4173cb1ccfce0 Types: Patch
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/82e3a496eb56da0b9f29fdc5b63cedb3289e91de Types: Patch
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/bd01629315ffd5b63da91d0bd529a77d30e55028 Types: Patch
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/c1ba65100a359fe28cfe37e09e10c99f247cbf1e Types: Patch
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/ff3357bffd9fb78f59762d8955afc7382a279079 Types: Patch
New CVE Received from kernel.org
2/26/2025 1:37:06 AM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
media: staging: media: zoran: move videodev alloc
Move some code out of zr36057_init() and create new functions for handling
zr->video_dev. This permit to ease code reading and fix a zr->video_dev
memory leak.
Added
Reference
https://git.kernel.org/stable/c/1e501ec38796f43e995731d1bcd4173cb1ccfce0
Added
Reference
https://git.kernel.org/stable/c/82e3a496eb56da0b9f29fdc5b63cedb3289e91de
Added
Reference
https://git.kernel.org/stable/c/bd01629315ffd5b63da91d0bd529a77d30e55028
Added
Reference
https://git.kernel.org/stable/c/c1ba65100a359fe28cfe37e09e10c99f247cbf1e
Added
Reference
https://git.kernel.org/stable/c/ff3357bffd9fb78f59762d8955afc7382a279079
Quick Info
CVE Dictionary Entry: CVE-2021-47644 NVD
Published Date: 02/26/2025 NVD
Last Modified: 08/10/2026
Source: kernel.org
) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
