{"id":"CVE-2022-50252","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nigb: Do not free q_vector unless new one was allocated\n\nAvoid potential use-after-free condition under memory pressure","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nigb: Do not free q_vector unless new one was allocated\n\nAvoid potential use-after-free condition under memory pressure. If the\nkzalloc() fails, q_vector will be freed b…","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-416"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 4.9.337","linux_kernel >= 4.10, < 4.14.303","linux_kernel >= 4.15, < 4.19.270","linux_kernel >= 4.20, < 5.4.229","linux_kernel >= 5.5, < 5.10.163","linux_kernel >= 5.11, < 5.15.86","linux_kernel >= 5.16, < 6.0.16","linux_kernel >= 6.1, < 6.1.2"],"patched":["linux_kernel 6.1.2"],"published":"2025-09-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:17:28.360","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-50252","references":[{"url":"https://git.kernel.org/stable/c/0200f0fbb11e359cc35af72ab10b2ec224e6f633","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0668716506ca66f90d395f36ccdaebc3e0e84801","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/314f7092b27749bdde44c14095b5533afa2a3bc8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3cb18dea11196fb4a06f78294cec5e61985e1aff","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/56483aecf6b22eb7dff6315b3a174688c6ad494c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/64ca1969599857143e91aeec4440640656100803","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/68e8adbcaf7a8743e473343b38b9dad66e2ac6f3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6e399577bd397a517df4b938601108c63769ce0a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f96bd8adc8adde25390965a8c1ee81b73cb62075","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50252.json"},{"url":"https://access.redhat.com/security/cve/CVE-2022-50252"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2395344"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-50252"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50252"},{"url":"https://lore.kernel.org/linux-cve-announce/2025091550-CVE-2022-50252-5c96@gregkh/T"}],"tags":["nvd","csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.00166,"epssPercentile":0.05851,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:30:40.430388Z"},"scores":{"nvd":7.8,"vendor":1.9,"cna":7.8},"ingestedAt":"2026-10-15T21:45:11.280Z","slug":"CVE-2022-50252","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nigb: Do not free q_vector unless new one was allocated\n\nAvoid potential use-after-free condition under memory pressure. If the\nkzalloc() fails, q_vector will be freed but left in the original\nadapter->q_vector[v_idx] array position.\n\n## Affected\n\n- `linux_kernel < 4.9.337`\n- `linux_kernel >= 4.10, < 4.14.303`\n- `linux_kernel >= 4.15, < 4.19.270`\n- `linux_kernel >= 4.20, < 5.4.229`\n- `linux_kernel >= 5.5, < 5.10.163`\n- `linux_kernel >= 5.11, < 5.15.86`\n- `linux_kernel >= 5.16, < 6.0.16`\n- `linux_kernel >= 6.1, < 6.1.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.1.2`\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50252.json)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":230065,"id":"CVE-2022-50252","ts":1793124778857,"field":"cvss","old":"1.9","new":"7.8"},{"seq":230064,"id":"CVE-2022-50252","ts":1793124778857,"field":"severity","old":"low","new":"high"},{"seq":223763,"id":"CVE-2022-50252","ts":1792238394978,"field":"cvss","old":"7.8","new":"1.9"},{"seq":223762,"id":"CVE-2022-50252","ts":1792238394978,"field":"severity","old":"high","new":"low"}]}