{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-31601", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.121Z", "datePublished": "2026-04-24T14:42:25.287Z", "dateUpdated": "2026-06-14T17:42:42.047Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T17:42:42.047Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/xe: Reorganize the init to decouple migration from reset\n\nAttempting to issue reset on VF devices that don't support migration\nleads to the following:\n\n BUG: unable to handle page fault for address: 00000000000011f8\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: Oops: 0000 [#1] SMP NOPTI\n CPU: 2 UID: 0 PID: 7443 Comm: xe_sriov_flr Tainted: G S U 7.0.0-rc1-lgci-xe-xe-4588-cec43d5c2696af219-nodebug+ #1 PREEMPT(lazy)\n Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER\n Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR4 RVP, BIOS RPLPFWI1.R00.4035.A00.2301200723 01/20/2023\n RIP: 0010:xe_sriov_vfio_wait_flr_done+0xc/0x80 [xe]\n Code: ff c3 cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 54 53 <83> bf f8 11 00 00 02 75 61 41 89 f4 85 f6 74 52 48 8b 47 08 48 89\n RSP: 0018:ffffc9000f7c39b8 EFLAGS: 00010202\n RAX: ffffffffa04d8660 RBX: ffff88813e3e4000 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n RBP: ffffc9000f7c39c8 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000000 R12: ffff888101a48800\n R13: ffff88813e3e4150 R14: ffff888130d0d008 R15: ffff88813e3e40d0\n FS: 00007877d3d0d940(0000) GS:ffff88890b6d3000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00000000000011f8 CR3: 000000015a762000 CR4: 0000000000f52ef0\n PKRU: 55555554\n Call Trace:\n \n xe_vfio_pci_reset_done+0x49/0x120 [xe_vfio_pci]\n pci_dev_restore+0x3b/0x80\n pci_reset_function+0x109/0x140\n reset_store+0x5c/0xb0\n dev_attr_store+0x17/0x40\n sysfs_kf_write+0x72/0x90\n kernfs_fop_write_iter+0x161/0x1f0\n vfs_write+0x261/0x440\n ksys_write+0x69/0xf0\n __x64_sys_write+0x19/0x30\n x64_sys_call+0x259/0x26e0\n do_syscall_64+0xcb/0x1500\n ? __fput+0x1a2/0x2d0\n ? fput_close_sync+0x3d/0xa0\n ? __x64_sys_close+0x3e/0x90\n ? x64_sys_call+0x1b7c/0x26e0\n ? do_syscall_64+0x109/0x1500\n ? __task_pid_nr_ns+0x68/0x100\n ? __do_sys_getpid+0x1d/0x30\n ? x64_sys_call+0x10b5/0x26e0\n ? do_syscall_64+0x109/0x1500\n ? putname+0x41/0x90\n ? do_faccessat+0x1e8/0x300\n ? __x64_sys_access+0x1c/0x30\n ? x64_sys_call+0x1822/0x26e0\n ? do_syscall_64+0x109/0x1500\n ? tick_program_event+0x43/0xa0\n ? hrtimer_interrupt+0x126/0x260\n ? irqentry_exit+0xb2/0x710\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n RIP: 0033:0x7877d5f1c5a4\n Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d a5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89\n RSP: 002b:00007fff48e5f908 EFLAGS: 00000202 ORIG_RAX: 0000000000000001\n RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007877d5f1c5a4\n RDX: 0000000000000001 RSI: 00007877d621b0c9 RDI: 0000000000000009\n RBP: 0000000000000001 R08: 00005fb49113b010 R09: 0000000000000007\n R10: 0000000000000000 R11: 0000000000000202 R12: 00007877d621b0c9\n R13: 0000000000000009 R14: 00007fff48e5fac0 R15: 00007fff48e5fac0\n \n\nThis is caused by the fact that some of the xe_vfio_pci_core_device\nmembers needed for handling reset are only initialized as part of\nmigration init.\n\nFix the problem by reorganizing the code to decouple VF init from\nmigration init." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/vfio/pci/xe/main.c" ], "versions": [ { "version": "1f5556ec8b9efbb784aeb3536e147182dee73d0f", "lessThan": "8fa4113fc65b8b29a30fbbca5fd82221dc6e146e", "status": "affected", "versionType": "git" }, { "version": "1f5556ec8b9efbb784aeb3536e147182dee73d0f", "lessThan": "73e53ff144a538f1843b3dea1e2740a755031cdc", "status": "affected", "versionType": "git" }, { "version": "1f5556ec8b9efbb784aeb3536e147182dee73d0f", "lessThan": "1b81ed612e12ea9df8c5cb6f0ddd4419fd0b8ac8", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/vfio/pci/xe/main.c" ], "versions": [ { "version": "6.19", "status": "affected" }, { "version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver" }, { "version": "6.19.14", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.1", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "6.19.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.0.1" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/8fa4113fc65b8b29a30fbbca5fd82221dc6e146e" }, { "url": "https://git.kernel.org/stable/c/73e53ff144a538f1843b3dea1e2740a755031cdc" }, { "url": "https://git.kernel.org/stable/c/1b81ed612e12ea9df8c5cb6f0ddd4419fd0b8ac8" } ], "title": "vfio/xe: Reorganize the init to decouple migration from reset", "x_generator": { "engine": "bippy-1.2.0" } } } }