{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-54237 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-54237 is a critical vulnerability in Linux, published on 30 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-54237 and fix it if it is affected.\n\nWhat it is: CVE-2023-54237 is a critical vulnerability in Linux, published on 30 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-54237 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-54237/ (Markdown: https://insights.sbomify.com/CVE-2023-54237/index.md)","id":"CVE-2023-54237","markdown":"https://insights.sbomify.com/CVE-2023-54237/index.md","name":"CVE-2023-54237","record":{"aliases":["BELL-CVE-2023-54237","DEBIAN-CVE-2023-54237","GHSA-c945-9h2g-hv7w","ROOT-OS-DEBIAN-11-CVE-2023-54237","ROOT-OS-UBUNTU-2204-CVE-2023-54237","UBUNTU-CVE-2023-54237"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel SMC","requires_auth":"none","summary":"A missing lock in the Linux kernel SMC module allows a local attacker to trigger a null pointer dereference, causing a system crash.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()","id":"CVE-2023-54237","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2023"},"n_packages":0,"n_references":4,"next":{"headline":"mlx5: fix skb leak while fifo resync and push","id":"CVE-2023-54238"},"packages":[],"prev":{"headline":"net/net_failover: fix txq exceeding warning","id":"CVE-2023-54236"},"products":["Linux"],"published":"2025-12-30","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A missing lock in the Linux kernel SMC module allows a local attacker to trigger a null pointer dereference, causing a system crash.","url":"https://insights.sbomify.com/CVE-2023-54237/"}