{"id":"DEBIAN-CVE-2023-53110","details":"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().  \t\t\tsmc_smcr_terminate_all  smc_buf_create /* init */ conn-\u003esndbuf_desc = NULL; ...  \t\t\t__smc_lgr_terminate \t\t\t\tsmc_conn_kill \t\t\t\t\tsmc_close_abort \t\t\t\t\t\tsmc_cdc_get_slot_and_msg_send  \t\t\t__softirqentry_text_start \t\t\t\tsmc_wr_tx_process_cqe \t\t\t\t\tsmc_cdc_tx_handler \t\t\t\t\t\tREAD(conn-\u003esndbuf_desc-\u003elen); \t\t\t\t\t\t/* panic dues to NULL sndbuf_desc */  conn-\u003esndbuf_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.","modified":"2026-09-15T09:02:50.171613479Z","published":"2025-05-02T16:15:29.930Z","upstream":["CVE-2023-53110"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-53110"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.25-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53110.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.25-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53110.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.25-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53110.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}