{"id":"CVE-2026-68291","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-68291","generatedAt":"2026-10-28T03:27:07.066Z","title":"In the Linux kernel, the following vulnerability has been resolved: idpf: fix max_vport related crash on allocation error during init Set adapter->max_vports only after successful allocation of vports, netdevs and vport_config buffers.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: fix max_vport related crash on allocation error during init\n\nSet adapter->max_vports only after successful allocation of vports, netdevs\nand  vport_config buffers. This fixes possible crashes on reset or rmmod,\nfollowing failed allocation on init\n\n[  305.981402] idpf 0000:83:00.0: enabling device (0100 -> 0102)\n[  305.994464] idpf 0000:83:00.0: Device HW Reset initiated\n[  320.416872] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[  320.416918] #PF: supervisor read access in kernel mode\n[  320.416942] #PF: error_code(0x0000) - not-present page\n[  320.416963] PGD 2099657067 P4D 0\n[  320.416983] Oops: Oops: 0000 [#1] SMP NOPTI\n...\n[  320.417093] RIP: 0010:idpf_remove+0x118/0x200 [idpf]\n[  320.417130] Code: 8b bb 98 09 00 00 e8 17 0f 5b e5 48 8b bb e8 08 00 00 e8 0b 0f 5b e5 66 83 bb 28 06 00 00 00 48 8b bb 20 06 00 00 74 49 31 ed <48> 8b 04 ef 48 85 c0 74 2f 48 8b 78 20 e8 66 58 91 e5 48 8b 83 20\n[  320.417183] RSP: 0018:ff7322212903fdb8 EFLAGS: 00010246\n[  320.417205] RAX: 0000000000000000 RBX: ff4463de40300000 RCX: ff7322212903fd4c\n[  320.417228] RDX: 0000000000000001 RSI: ffffffffa7f7d100 RDI: 0000000000000000\n[  320.417250] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\n[  320.417272] R10: 0000000000000001 R11: ff4463de3a638f58 R12: ff4463be89ac7000\n[  320.417294] R13: ff4463be89ac7198 R14: ff4463be94fc7198 R15: ffffffffc0f10f20\n[  320.417317] FS:  00007f963c0e6740(0000) GS:ff4463fdd65d8000(0000) knlGS:0000000000000000\n[  320.417342] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  320.417362] CR2: 0000000000000000 CR3: 00000020ba674002 CR4: 0000000000773ef0\n[  320.417385] PKRU: 55555554\n[  320.417398] Call Trace:\n[  320.417412]  <TASK>\n[  320.417429]  pci_device_remove+0x42/0xb0\n[  320.417459]  device_release_driver_internal+0x1a9/0x210\n[  320.417492]  driver_detach+0x4b/0x90\n[  320.417516]  bus_remove_driver+0x70/0x100\n[  320.417539]  pci_unregister_driver+0x2e/0xb0\n[  320.417564]  __do_sys_delete_module.constprop.0+0x190/0x2f0\n[  320.417592]  ? kmem_cache_free+0x31e/0x550\n[  320.417619]  ? lockdep_hardirqs_on_prepare+0xde/0x190\n[  320.417644]  ? do_syscall_64+0x38/0x6b0\n[  320.417665]  do_syscall_64+0xc8/0x6b0\n[  320.417683]  ? clear_bhb_loop+0x30/0x80\n[  320.417706]  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[  320.417727] RIP: 0033:0x7f963bb30beb","published":"2026-08-10T13:20:18.000Z","lastModified":"2026-10-21T13:19:27.000Z","status":"Received","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":null,"cwe":[],"affected":[],"epss":{"score":0.00168,"percentile":0.06029,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"unknown","text":"Not yet scored. NVD analysis is pending; check back once CVSS and EPSS values are published."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/08fffd2881e2804d55bc74f178e2843e8832b396","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/237f1f7653b8729169af11fae79f01b90d00b87e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/993571d207f5f4775b92df89788570468ffb9cdd","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9fbe22b7aff0a65984d78ee6b93e2f8179abd1f5","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68291","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}