{"id":"CVE-2026-53010","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in smb2_open during durable reconnect\n\nIn smb2_open, the call to ksmbd_put_durable_fd(fp) drops the reference\nto the durable file descriptor e…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in smb2_open during durable reconnect\n\nIn smb2_open, the call to ksmbd_put_durable_fd(fp) drops the reference\nto the durable file descriptor e…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 6.6.32, < 6.7","linux_kernel >= 6.9, < 6.18.33","linux_kernel >= 6.19, < 7.0.10"],"patched":["linux_kernel 7.0.10"],"published":"2026-06-24","updated":"2026-09-14","sourceUpdated":"2026-09-14T12:17:42.870","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-53010","references":[{"url":"https://git.kernel.org/stable/c/1baff47b81f94f9231c91236aa511420d0e266b9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4db3dcac84c2f14a45ae201efb38de1fb1bfc009","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/97a0cd55283b4e63fd92804da91c8d9896adcad9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ce2e164c1c51c3f7813b80f8c926836e896bcbb3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f0ff7f12398e85b3a11745ff7feab6246f3d75c2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00444,"epssPercentile":0.38046,"ingestedAt":"2026-07-11T17:13:40.357Z","slug":"CVE-2026-53010","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in smb2_open during durable reconnect\n\nIn smb2_open, the call to ksmbd_put_durable_fd(fp) drops the reference\nto the durable file descriptor early during the durable reconnect\nprocess. If an error occurs subsequently (eg, ksmbd_iov_pin_rsp fails)\nor a scavenger accesses the file, it leads to a use-after-free when\naccessing fp properties (eg fp->create_time).\n\nMove the single put to the end of the function below err_out2 so fp\nstays valid until smb2_open returns.\n\n## Affected\n\n- `linux_kernel >= 6.6.32, < 6.7`\n- `linux_kernel >= 6.9, < 6.18.33`\n- `linux_kernel >= 6.19, < 7.0.10`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.0.10`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}