In 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
Configurations
Configuration 1 (hide)
|
History
10 Nov 2025, 17:53
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/22a825c541d775c1dbe7b2402786025acad6727b - Patch | |
| References | () https://git.kernel.org/stable/c/31817c530768b0199771ec6019571b4f0ddbf230 - Patch | |
| References | () https://git.kernel.org/stable/c/3c270435db8aa34929263dddae8fd050f5216ecb - Patch | |
| References | () https://git.kernel.org/stable/c/3ebac7cf0a184a8102821a7a00203f02bebda83c - Patch | |
| References | () https://git.kernel.org/stable/c/b108bd9e6be000492ebebe867daa699285978a10 - Patch | |
| CPE | 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:*:*:*:*:*:* |
|
| CWE | CWE-476 |
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
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference