CVE-2024-50152

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning： fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 | kfree(ea); | ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34	Patch
https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1	Patch
https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123	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:6.12:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.12:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.12:rc3::::::

History

19 Nov 2024, 02:16

Type	Values Removed	Values Added
Summary	(en) In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning? fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 \| kfree(ea); \| ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.	(en) In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning： fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 \| kfree(ea); \| ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.

13 Nov 2024, 15:15

Type	Values Removed	Values Added
CPE		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.12:rc1:::::: cpe:2.3:o:linux:linux_kernel:6.12:rc2:::::: cpe:2.3:o:linux:linux_kernel:6.12:rc3::::::
References	~~() https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34 -~~	() https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34 - Patch
References	~~() https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1 -~~	() https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1 - Patch
References	~~() https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123 -~~	() https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123 - Patch
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CWE		CWE-415
First Time		Linux linux Kernel Linux

08 Nov 2024, 19:01

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: se corrige una posible doble liberación en smb2_set_ea() Advertencia del comprobador estático de Clang (scan-build): fs/smb/client/smb2ops.c:1304:2: Intento de liberar memoria liberada. 1304 \| kfree(ea); \| ^~~~~~~~~ Hay una doble liberación en tal caso: 'ea se inicializa a NULL' -> 'primera asignación de memoria exitosa para ea' -> 'algo falló, goto sea_exit' -> 'primera liberación de memoria para ea' -> 'goto replay_again' -> 'segundo goto sea_exit antes de asignar memoria para ea' -> 'la segunda liberación de memoria para ea resultó en una doble liberación'. Reinicialice 'ea' a NULL cerca de la etiqueta replay_again, puede solucionar este problema de doble liberación.
Summary	(en) In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning： fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 \| kfree(ea); \| ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.	(en) In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning? fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 \| kfree(ea); \| ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.

07 Nov 2024, 10:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-11-07 10:15

Updated : 2024-11-19 02:16

NVD link : CVE-2024-50152

Mitre link : CVE-2024-50152

CVE.ORG link : CVE-2024-50152

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-415

Double Free

5.5 /10