CVE-2024-41049

In the Linux kernel, the following vulnerability has been resolved: filelock: fix potential use-after-free in posix_lock_inode Light Hsieh reported a KASAN UAF warning in trace_posix_lock_inode(). The request pointer had been changed earlier to point to a lock entry that was added to the inode's list. However, before the tracepoint could fire, another task raced in and freed that lock. Fix this by moving the tracepoint inside the spinlock, which should ensure that this doesn't happen.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967	Patch
https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2	Patch
https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92	Patch
https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197	Patch
https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6a	Patch
https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0	Patch
https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58b	Patch
https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967	Patch
https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2	Patch
https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92	Patch
https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197	Patch
https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6a	Patch
https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0	Patch
https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58b	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

21 Nov 2024, 09:32

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967 - Patch~~	() https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967 - Patch
References	~~() https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2 - Patch~~	() https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2 - Patch
References	~~() https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92 - Patch~~	() https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92 - Patch
References	~~() https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197 - Patch~~	() https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197 - Patch
References	~~() https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6a - Patch~~	() https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6a - Patch
References	~~() https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0 - Patch~~	() https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0 - Patch
References	~~() https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58b - Patch~~	() https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58b - Patch

26 Aug 2024, 15:11

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967 -~~	() https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967 - Patch
References	~~() https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2 -~~	() https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2 - Patch
References	~~() https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92 -~~	() https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92 - Patch
References	~~() https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197 -~~	() https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197 - Patch
References	~~() https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6a -~~	() https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6a - Patch
References	~~() https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0 -~~	() https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0 - Patch
References	~~() https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58b -~~	() https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58b - Patch
CWE		CWE-416
CPE		cpe:2.3:o:linux:linux_kernel::::::::
Summary		(es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: filelock: corrige el posible use after free en posix_lock_inode Light Hsieh informó una advertencia de KASAN UAF en trace_posix_lock_inode(). El puntero de solicitud se había cambiado anteriormente para apuntar a una entrada de bloqueo que se agregó a la lista del inodo. Sin embargo, antes de que el punto de rastreo pudiera activarse, otra tarea entró rápidamente y liberó ese bloqueo. Solucione este problema moviendo el punto de seguimiento dentro del spinlock, lo que debería garantizar que esto no suceda.
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
First Time		Linux Linux linux Kernel

29 Jul 2024, 15:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-07-29 15:15

Updated : 2024-11-21 09:32

NVD link : CVE-2024-41049

Mitre link : CVE-2024-41049

CVE.ORG link : CVE-2024-41049

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

7.8 /10