CVE-2021-47344

media: zr364xx: fix memory leak in zr364xx_start_readpipe

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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

media: zr364xx: fix memory leak in zr364xx_start_readpipe

syzbot reported memory leak in zr364xx driver.
The problem was in non-freed urb in case of
usb_submit_urb() fail.

backtrace:
[<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline]
[<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74
[<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022
[<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline]
[<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516
[<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
[<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: medio: zr364xx: corrige la pérdida de memoria en zr364xx_start_readpipe syzbot informó una pérdida de memoria en el controlador zr364xx. El problema estaba en la urb no liberada en caso de que fallara usb_submit_urb(). seguimiento: [] kmalloc include/linux/slab.h:561 [en línea] [] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [] zr364xx_start_readpipe+0x78/ 0x130 drivers/media/usb/zr364xx/zr364xx.c:1022 [] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [en línea] [] 0x851 drivers/media/ usb/zr364xx/zr364xx.c:1516 [] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 []really_probe+0x159/0x500 controladores/base/dd.c:576

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-21 CVE Reserved
2024-05-21 CVE Published
2024-05-22 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (10)

URL	Tag	Source
https://git.kernel.org/stable/c/ccbf035ae5de4c535160fc99f73feb44cc55b534	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/c57b2bd3247925e253729dce283d6bf6abc9339d	2021-07-20
https://git.kernel.org/stable/c/bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513	2021-07-20
https://git.kernel.org/stable/c/b0633051a6cb24186ff04ce1af99c7de18c1987e	2021-07-20
https://git.kernel.org/stable/c/021c294dff030f3ba38eb81e400ba123db32ecbc	2021-07-20
https://git.kernel.org/stable/c/0edd6759167295ea9969e89283b81017b4c688aa	2021-07-19
https://git.kernel.org/stable/c/c57bfd8000d7677bf435873b440eec0c47f73a08	2021-07-19
https://git.kernel.org/stable/c/5f3f81f1c96b501d180021c23c25e9f48eaab235	2021-07-19
https://git.kernel.org/stable/c/d69b39d89f362cfeeb54a68690768d0d257b2c8f	2021-07-19
https://git.kernel.org/stable/c/0a045eac8d0427b64577a24d74bb8347c905ac65	2021-06-02

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 4.4.276 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 4.4.276"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 4.9.276 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 4.9.276"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 4.14.240 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 4.14.240"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 4.19.198 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 4.19.198"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 5.4.133 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 5.4.133"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 5.10.51 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 5.10.51"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 5.12.18 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 5.12.18"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 5.13.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 5.13.3"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 5.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 5.14"		en		Affected