{"id":"CVE-2022-48908","summary":"net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()\n\nDuring driver initialization, the pointer of card info, i.e. the\nvariable 'ci' is required. However, the definition of\n'com20020pci_id_table' reveals that this field is empty for some\ndevices, which will cause null pointer dereference when initializing\nthese devices.\n\nThe following log reveals it:\n\n[    3.973806] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]\n[    3.973819] RIP: 0010:com20020pci_probe+0x18d/0x13e0 [com20020_pci]\n[    3.975181] Call Trace:\n[    3.976208]  local_pci_probe+0x13f/0x210\n[    3.977248]  pci_device_probe+0x34c/0x6d0\n[    3.977255]  ? pci_uevent+0x470/0x470\n[    3.978265]  really_probe+0x24c/0x8d0\n[    3.978273]  __driver_probe_device+0x1b3/0x280\n[    3.979288]  driver_probe_device+0x50/0x370\n\nFix this by checking whether the 'ci' is a null pointer first.","modified":"2026-04-02T08:27:07.823869Z","published":"2024-08-22T01:30:49.441Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48908.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/5f394102ee27dbf051a4e283390cd8d1759dacea"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8e3bc7c5bbf87e86e9cd652ca2a9166942d86206"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b838add93e1dd98210482dc433768daaf752bdef"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ca0bdff4249a644f2ca7a49d410d95b8dacf1f72"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e50c589678e50f8d574612e473ca60ef45190896"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ea372aab54903310756217d81610901a8e66cb7d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48908.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-48908"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8c14f9c70327a6fb75534c4c61d7ea9c82ccf78f"},{"fixed":"8e3bc7c5bbf87e86e9cd652ca2a9166942d86206"},{"fixed":"b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049"},{"fixed":"b838add93e1dd98210482dc433768daaf752bdef"},{"fixed":"e50c589678e50f8d574612e473ca60ef45190896"},{"fixed":"5f394102ee27dbf051a4e283390cd8d1759dacea"},{"fixed":"ea372aab54903310756217d81610901a8e66cb7d"},{"fixed":"ca0bdff4249a644f2ca7a49d410d95b8dacf1f72"},{"fixed":"bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48908.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}