{"id":"CVE-2026-64598","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: Fix error code in smb2_aead_req_alloc()\n\nThe \"*num_sgs\" variable is a u32 so \"ERR_PTR(*num_sgs)\" doesn't work.\nWe would have to do something similar to the …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: Fix error code in smb2_aead_req_alloc()\n\nThe \"*num_sgs\" variable is a u32 so \"ERR_PTR(*num_sgs)\" doesn't work.\nWe would have to do something similar to the …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","published":"2026-08-06","updated":"2026-08-08","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-64598","references":[{"url":"https://git.kernel.org/stable/c/61f28012e5650c619223decdb7970e0d3162e949","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a187883cc1dc784a4d32537f5d316f1b7b9ad76f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a1cc432cb0b0a1f74f98a0db3b94ca880c7947ac","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/aa37f5fef78dd11cbf983269da2031e12625c56d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cad756733dc3985188983f3e2eb77e2927209099","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00278,"epssPercentile":0.20494,"ingestedAt":"2026-08-08T21:30:13.334Z","slug":"CVE-2026-64598","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: Fix error code in smb2_aead_req_alloc()\n\nThe \"*num_sgs\" variable is a u32 so \"ERR_PTR(*num_sgs)\" doesn't work.\nWe would have to do something similar to the previous line where it's\ncast to int and then long.  However, it's simpler to store the return in\nan int ret variable.\n\nThis bug would eventually result in a crash when dereference the invalid\nerror pointer.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}