{"id":"CVE-2026-23087","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: xen: scsiback: Fix potential memory leak in scsiback_remove()\n\nMemory allocated for struct vscsiblk_info in scsiback_probe() is not\nfreed in scsiback_remove() lea…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: xen: scsiback: Fix potential memory leak in scsiback_remove()\n\nMemory allocated for struct vscsiblk_info in scsiback_probe() is not\nfreed in scsiback_remove() lea…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-401"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.18, < 5.10.249","linux_kernel >= 5.11, < 5.15.199","linux_kernel >= 5.16, < 6.1.162","linux_kernel >= 6.2, < 6.6.122","linux_kernel >= 6.7, < 6.12.68","linux_kernel >= 6.13, < 6.18.8","linux_kernel = 6.19"],"patched":["linux_kernel 6.18.8"],"published":"2026-02-04","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:18:41.670","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-23087","references":[{"url":"https://git.kernel.org/stable/c/24c441f0e24da175d7912095663f526ac480dc4f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/32e52b56056daf0f0881fd9254706acf25b4be97","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/427b0fb30ddec3bad05dcd73b00718f98c7026d2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4a975c72429b050c234405668b742cdecc11548e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/901a5f309daba412e2a30364d7ec1492fa11c32c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a8bb3ec8d85951a56af0a72d93ccbc2aee42eef9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f86264ec0e2b102fcd49bf3e4f32fee669d482fc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00147,"epssPercentile":0.03864,"ingestedAt":"2026-09-08T15:33:26.994Z","slug":"CVE-2026-23087","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: xen: scsiback: Fix potential memory leak in scsiback_remove()\n\nMemory allocated for struct vscsiblk_info in scsiback_probe() is not\nfreed in scsiback_remove() leading to potential memory leaks on remove,\nas well as in the scsiback_probe() error paths. Fix that by freeing it\nin scsiback_remove().\n\n## Affected\n\n- `linux_kernel >= 3.18, < 5.10.249`\n- `linux_kernel >= 5.11, < 5.15.199`\n- `linux_kernel >= 5.16, < 6.1.162`\n- `linux_kernel >= 6.2, < 6.6.122`\n- `linux_kernel >= 6.7, < 6.12.68`\n- `linux_kernel >= 6.13, < 6.18.8`\n- `linux_kernel = 6.19`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.18.8`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":221623,"id":"CVE-2026-23087","ts":1792035292291,"field":"cvss","old":null,"new":"5.5"},{"seq":221622,"id":"CVE-2026-23087","ts":1792035292291,"field":"severity","old":"none","new":"medium"}]}