{"id":"CVE-2022-50490","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Propagate error from htab_lock_bucket() to userspace\n\nIn __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns\n-EBUSY, it will go to next bucket","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Propagate error from htab_lock_bucket() to userspace\n\nIn __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns\n-EBUSY, it will go to next bucket. Goin…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-125"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.11, < 5.15.75","linux_kernel >= 5.16, < 5.19.17","linux_kernel >= 6.0, < 6.0.3"],"patched":["linux_kernel 6.0.3"],"published":"2025-10-04","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:17:31.200","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-50490","references":[{"url":"https://git.kernel.org/stable/c/0e13425104903970a5ede853082d3bbb4edec6f3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00163,"epssPercentile":0.0545,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T21:31:22.465651Z"},"ingestedAt":"2026-10-15T22:48:25.379Z","slug":"CVE-2022-50490","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Propagate error from htab_lock_bucket() to userspace\n\nIn __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns\n-EBUSY, it will go to next bucket. Going to next bucket may not only\nskip the elements in current bucket silently, but also incur\nout-of-bound memory access or expose kernel memory to userspace if\ncurrent bucket_cnt is greater than bucket_size or zero.\n\nFixing it by stopping batch operation and returning -EBUSY when\nhtab_lock_bucket() fails, and the application can retry or skip the busy\nbatch as needed.\n\n## Affected\n\n- `linux_kernel >= 5.11, < 5.15.75`\n- `linux_kernel >= 5.16, < 5.19.17`\n- `linux_kernel >= 6.0, < 6.0.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.0.3`","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}