{"cve":"CVE-2025-40091","nvd":{"published":"2025-10-30T10:15:33.627","modified":"2026-10-19T21:10:00.160","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nixgbe: fix too early devlink_free() in ixgbe_remove()\n\nSince ixgbe_adapter is embedded in devlink, calling devlink_free()\nprematurely in the ixgbe_remove() path can lead to UAF. Move devlink_free()\nto the end.\n\nKASAN report:\n\n BUG: KASAN: use-after-free in ixgbe_reset_interrupt_capability+0x140/0x180 [ixgbe]\n Read of size 8 at addr ffff0000adf813e0 by task bash/2095\n CPU: 1 UID: 0 PID: 2095 Comm: bash Tainted: G S  6.17.0-rc2-tnguy.net-queue+ #1 PREEMPT(full)\n [...]\n Call trace:\n  show_stack+0x30/0x90 (C)\n  dump_stack_lvl+0x9c/0xd0\n  print_address_description.constprop.0+0x90/0x310\n  print_report+0x104/0x1f0\n  kasan_report+0x88/0x180\n  __asan_report_load8_noabort+0x20/0x30\n  ixgbe_reset_interrupt_capability+0x140/0x180 [ixgbe]\n  ixgbe_clear_interrupt_scheme+0xf8/0x130 [ixgbe]\n  ixgbe_remove+0x2d0/0x8c0 [ixgbe]\n  pci_device_remove+0xa0/0x220\n  device_remove+0xb8/0x170\n  device_release_driver_internal+0x318/0x490\n  device_driver_detach+0x40/0x68\n  unbind_store+0xec/0x118\n  drv_attr_store+0x64/0xb8\n  sysfs_kf_write+0xcc/0x138\n  kernfs_fop_write_iter+0x294/0x440\n  new_sync_write+0x1fc/0x588\n  vfs_write+0x480/0x6a0\n  ksys_write+0xf0/0x1e0\n  __arm64_sys_write+0x70/0xc0\n  invoke_syscall.constprop.0+0xcc/0x280\n  el0_svc_common.constprop.0+0xa8/0x248\n  do_el0_svc+0x44/0x68\n  el0_svc+0x54/0x160\n  el0t_64_sync_handler+0xa0/0xe8\n  el0t_64_sync+0x1b0/0x1b8","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/5feef67b646d8f5064bac288e22204ffba2b9a4a","https://git.kernel.org/stable/c/df445969aa727cd64f3f29dc1f85fb60aca238d1"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-40091","score":0.00184,"percentile":0.07955,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}