{"id":"CVE-2022-49905","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: Fix possible leaked pernet namespace in smc_init()\n\nIn smc_init(), register_pernet_subsys(&smc_net_stat_ops) is called\nwithout any error handling.\nIf it fails,…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: Fix possible leaked pernet namespace in smc_init()\n\nIn smc_init(), register_pernet_subsys(&smc_net_stat_ops) is called\nwithout any error handling.\nIf it fails,…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-401"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.14, < 5.15.78","linux_kernel >= 5.16, < 6.0.8","linux_kernel = 6.1"],"patched":["linux_kernel 6.0.8"],"published":"2025-05-01","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:17:25.867","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-49905","references":[{"url":"https://git.kernel.org/stable/c/61defd6450a9ef4a1487090449999b0fd83518ef","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/62ff373da2534534c55debe6c724c7fe14adb97f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c97daf836f7caf81d3144b8cd2b2a51f9bc3bd09","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.0021,"epssPercentile":0.11167,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:29:44.271140Z"},"ingestedAt":"2026-10-15T21:45:11.287Z","slug":"CVE-2022-49905","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: Fix possible leaked pernet namespace in smc_init()\n\nIn smc_init(), register_pernet_subsys(&smc_net_stat_ops) is called\nwithout any error handling.\nIf it fails, registering of &smc_net_ops won't be reverted.\nAnd if smc_nl_init() fails, &smc_net_stat_ops itself won't be reverted.\n\nThis leaves wild ops in subsystem linkedlist and when another module\ntries to call register_pernet_operations() it triggers page fault:\n\nBUG: unable to handle page fault for address: fffffbfff81b964c\nRIP: 0010:register_pernet_operations+0x1b9/0x5f0\nCall Trace:\n  <TASK>\n  register_pernet_subsys+0x29/0x40\n  ebtables_init+0x58/0x1000 [ebtables]\n  ...\n\n## Affected\n\n- `linux_kernel >= 5.14, < 5.15.78`\n- `linux_kernel >= 5.16, < 6.0.8`\n- `linux_kernel = 6.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.0.8`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}