{"cve":"CVE-2022-49925","nvd":{"published":"2025-05-01T15:16:18.337","modified":"2026-06-17T05:19:32.187","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Fix null-ptr-deref in ib_core_cleanup()\n\nKASAN reported a null-ptr-deref error:\n\n  KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\n  CPU: 1 PID: 379\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)\n  RIP: 0010:destroy_workqueue+0x2f/0x740\n  RSP: 0018:ffff888016137df8 EFLAGS: 00000202\n  ...\n  Call Trace:\n   ib_core_cleanup+0xa/0xa1 [ib_core]\n   __do_sys_delete_module.constprop.0+0x34f/0x5b0\n   do_syscall_64+0x3a/0x90\n   entry_SYSCALL_64_after_hwframe+0x63/0xcd\n  RIP: 0033:0x7fa1a0d221b7\n  ...\n\nIt is because the fail of roce_gid_mgmt_init() is ignored:\n\n ib_core_init()\n   roce_gid_mgmt_init()\n     gid_cache_wq = alloc_ordered_workqueue # fail\n ...\n ib_core_cleanup()\n   roce_gid_mgmt_cleanup()\n     destroy_workqueue(gid_cache_wq)\n     # destroy an unallocated wq\n\nFix this by catching the fail of roce_gid_mgmt_init() in ib_core_init().","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/07c0d131cc0fe1f3981a42958fc52d573d303d89","https://git.kernel.org/stable/c/6b3d5dcb12347f3518308c2c9d2cf72453a3e1e5","https://git.kernel.org/stable/c/ab817f75e5e0fa58d9be0825da6a7b7d8a1fa1d9","https://git.kernel.org/stable/c/af8fb5a0600e9ae29950e9422a032c3c22649ee5","https://git.kernel.org/stable/c/d360e875c011a005628525bf290322058927e7dc"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:22.920403922+00:00"},"epss":{"cve":"CVE-2022-49925","score":0.00203,"percentile":0.10324,"date":"2026-10-31"},"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."]}