CVE-2023-53110

  1. Yack CVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-53110

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

I

n the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler() When performing a stress test on SMC-R by rmmod mlx5_ib driver during the wrk/nginx test, we found that there is a probability of triggering a panic while terminating all link groups. This issue dues to the race between smc_smcr_terminate_all() and smc_buf_create(). smc_smcr_terminate_all smc_buf_create /* init */ conn->sndbuf_desc = NULL; ... __smc_lgr_terminate smc_conn_kill smc_close_abort smc_cdc_get_slot_and_msg_send __softirqentry_text_start smc_wr_tx_process_cqe smc_cdc_tx_handler READ(conn->sndbuf_desc->len); /* panic dues to NULL sndbuf_desc */ conn->sndbuf_desc = xxx; This patch tries to fix the issue by always to check the sndbuf_desc before send any cdc msg, to make sure that no null pointer is seen during cqe processing.

References
Link Resource
https://git.kernel.org/stable/c/22a825c541d775c1dbe7b2402786025acad6727b Patch
https://git.kernel.org/stable/c/31817c530768b0199771ec6019571b4f0ddbf230 Patch
https://git.kernel.org/stable/c/3c270435db8aa34929263dddae8fd050f5216ecb Patch
https://git.kernel.org/stable/c/3ebac7cf0a184a8102821a7a00203f02bebda83c Patch
https://git.kernel.org/stable/c/b108bd9e6be000492ebebe867daa699285978a10 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:6.3:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*
History

10 Nov 2025, 17:53

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/22a825c541d775c1dbe7b2402786025acad6727b - () https://git.kernel.org/stable/c/22a825c541d775c1dbe7b2402786025acad6727b - Patch
References () https://git.kernel.org/stable/c/31817c530768b0199771ec6019571b4f0ddbf230 - () https://git.kernel.org/stable/c/31817c530768b0199771ec6019571b4f0ddbf230 - Patch
References () https://git.kernel.org/stable/c/3c270435db8aa34929263dddae8fd050f5216ecb - () https://git.kernel.org/stable/c/3c270435db8aa34929263dddae8fd050f5216ecb - Patch
References () https://git.kernel.org/stable/c/3ebac7cf0a184a8102821a7a00203f02bebda83c - () https://git.kernel.org/stable/c/3ebac7cf0a184a8102821a7a00203f02bebda83c - Patch
References () https://git.kernel.org/stable/c/b108bd9e6be000492ebebe867daa699285978a10 - () https://git.kernel.org/stable/c/b108bd9e6be000492ebebe867daa699285978a10 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-476
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

05 May 2025, 20:54

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/smc: corrección de sndbuf_desc NULL en smc_cdc_tx_handler(). Al realizar una prueba de estrés en SMC-R con el controlador rmmod mlx5_ib durante la prueba wrk/nginx, se observó la probabilidad de generar un pánico al terminar todos los grupos de enlaces. Este problema se debe a la competencia entre smc_smcr_terminate_all() y smc_buf_create(). smc_smcr_terminate_all smc_buf_create /* init */ conn->sndbuf_desc = NULL; ... __smc_lgr_terminate smc_conn_kill smc_close_abort smc_cdc_get_slot_and_msg_send __softirqentry_text_start smc_wr_tx_process_cqe smc_cdc_tx_handler READ(conn->sndbuf_desc->len); /* pánico debido a NULL sndbuf_desc */ conn->sndbuf_desc = xxx; Este parche intenta solucionar el problema verificando siempre sndbuf_desc antes de enviar cualquier mensaje de cdc, para asegurarse de que no se vea ningún puntero nulo durante el procesamiento de cqe.

02 May 2025, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-02 16:15

Updated : 2025-11-10 17:53

NVD link : CVE-2023-53110

Mitre link : CVE-2023-53110

CVE.ORG link : CVE-2023-53110

JSON object : View

Products Affected

linux

CWE
CWE-476

NULL Pointer Dereference