{"cve":"CVE-2023-54237","nvd":{"published":"2025-12-30T13:16:12.193","modified":"2026-10-15T22:17:56.183","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()\n\nThere is a certain chance to trigger the following panic:\n\nPID: 5900   TASK: ffff88c1c8af4100  CPU: 1   COMMAND: \"kworker/1:48\"\n #0 [ffff9456c1cc79a0] machine_kexec at ffffffff870665b7\n #1 [ffff9456c1cc79f0] __crash_kexec at ffffffff871b4c7a\n #2 [ffff9456c1cc7ab0] crash_kexec at ffffffff871b5b60\n #3 [ffff9456c1cc7ac0] oops_end at ffffffff87026ce7\n #4 [ffff9456c1cc7ae0] page_fault_oops at ffffffff87075715\n #5 [ffff9456c1cc7b58] exc_page_fault at ffffffff87ad0654\n #6 [ffff9456c1cc7b80] asm_exc_page_fault at ffffffff87c00b62\n    [exception RIP: ib_alloc_mr+19]\n    RIP: ffffffffc0c9cce3  RSP: ffff9456c1cc7c38  RFLAGS: 00010202\n    RAX: 0000000000000000  RBX: 0000000000000002  RCX: 0000000000000004\n    RDX: 0000000000000010  RSI: 0000000000000000  RDI: 0000000000000000\n    RBP: ffff88c1ea281d00   R8: 000000020a34ffff   R9: ffff88c1350bbb20\n    R10: 0000000000000000  R11: 0000000000000001  R12: 0000000000000000\n    R13: 0000000000000010  R14: ffff88c1ab040a50  R15: ffff88c1ea281d00\n    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018\n #7 [ffff9456c1cc7c60] smc_ib_get_memory_region at ffffffffc0aff6df [smc]\n #8 [ffff9456c1cc7c88] smcr_buf_map_link at ffffffffc0b0278c [smc]\n #9 [ffff9456c1cc7ce0] __smc_buf_create at ffffffffc0b03586 [smc]\n\nThe reason here is that when the server tries to create a second link,\nsmc_llc_srv_add_link() has no protection and may add a new link to\nlink group. This breaks the security environment protected by\nllc_conf_mutex.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":[],"references":["https://git.kernel.org/stable/c/0c764cc271d3aa6528ae1b3394babf34ac01f775","https://git.kernel.org/stable/c/e40b801b3603a8f90b46acbacdea3505c27f01c0","https://git.kernel.org/stable/c/f2f46de98c11d41ac8d22765f47ba54ce5480a5b","https://git.kernel.org/stable/c/fe35c24b730d38b421da93ac5d493cb4495e8e54"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2023-54237","score":0.00555,"percentile":0.46016,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}