{"id":"CVE-2026-97948","revision":"726a5b5be6894782826ddb0cd350ae33","records":[{"revision":"726a5b5be6894782826ddb0cd350ae33","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97948","aliases":[],"title":"powerpc/eeh: Fix recursive locking on devices without EEH sensitive driver","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/eeh: Fix recursive locking on devices without EEH sensitive driver\n\nThe commit 1010b4c012b0 (\"powerpc/eeh: Make EEH driver device hotplug\nsafe\") refactored the EEH code such that the pci_rescan_remove_lock is\nheld at the beginning of eeh_handle_normal_event() and the\neeh_reset_device() is called with that lock being held. Looks like the\ncommit missed to remove the existing lock/unlock inside eeh_rmv_device()\nwhich is no longer necessary. This is causing the eehd to hang on the\nlock which it actually holds when that code path is taken.\n\n[<0>] 0xc00000011c78f870\n[<0>] __switch_to+0xfc/0x1a0\n[<0>] pci_lock_rescan_remove+0x30/0x44\n[<0>] eeh_rmv_device+0x290/0x2e0\n[<0>] eeh_pe_dev_traverse+0x80/0x130\n[<0>] eeh_reset_device+0xcc/0x23c\n[<0>] eeh_handle_normal_event+0x830/0xa80\n[<0>] eeh_event_handler+0xf8/0x190\n[<0>] kthread+0x194/0x1b0\n[<0>] start_kernel_thread+0x14/0x18\n\nThe issue is seen for cases where the errors are detected on the PHB\ndirectly AND|OR for devices where the driver error_detected() returns\nPCI_ERS_RESULT_NEED_RESET, and driver being not EEH sensitive(i.e no\nerror handlers like slot_reset(), resume() etc defined).","state":0,"publishedAt":"2026-09-25T10:22:57.757+00:00","modifiedAt":"2026-10-19T09:11:14.563+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/powerpc/kernel/eeh_driver.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"502f08831a9afb72dc98a56ae6504da43e93b250\",\n                            \"lessThan\": \"3833dfae0680b6b16e2469fbc90aa48376311cd8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f56e004b781719d8fdf6c9619b15caf2579bc1f2\",\n                            \"lessThan\": \"24524fca27da674668941440e8e05cdfec0b0222\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"59c6d3d81d42bf543c90597b4f38c53d6874c5a1\",\n                            \"lessThan\": \"a58531181363219fa5de2b53d5d7274dcdfca98b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a426e8a6ae161f51888585b065db0f8f93ab2e16\",\n                            \"lessThan\": \"460fab22b65138531082910702f74b048b25237b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d2c60a8a387e9fcc28447ef36c03f8e49fd052a6\",\n                            \"lessThan\": \"102e3dc5ab5ba052e294819e83384166b242c1ec\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1010b4c012b0d78dfb9d3132b49aa2ef024a07a7\",\n                            \"lessThan\": \"2920af33d097ca335e492b346af70b72986ad6dc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1010b4c012b0d78dfb9d3132b49aa2ef024a07a7\",\n                            \"lessThan\": \"85d8eaefc052cf3e5ae2c7bafeda2db68b8898b4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1010b4c012b0d78dfb9d3132b49aa2ef024a07a7\",\n                            \"lessThan\": \"c5e68706527968282e49de205cc2b935823cb88a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d42bbd8f30ac38b1ce54715bf08ec3dac18d6b25\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"19d5036e7ad766cf212aebec23b9f1d7924a62bc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5.10.241\",\n                            \"lessThan\": \"5.10.271\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.190\",\n                            \"lessThan\": \"5.15.222\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.148\",\n                            \"lessThan\": \"6.1.189\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.102\",\n                            \"lessThan\": \"6.6.158\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.42\",\n                            \"lessThan\": \"6.12.111\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.15.10\",\n                            \"lessThan\": \"6.16\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.16.1\",\n                            \"lessThan\": \"6.17\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/powerpc/kernel/eeh_driver.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.17\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.17\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/3833dfae0680b6b16e2469fbc90aa48376311cd8","https://git.kernel.org/stable/c/24524fca27da674668941440e8e05cdfec0b0222","https://git.kernel.org/stable/c/a58531181363219fa5de2b53d5d7274dcdfca98b","https://git.kernel.org/stable/c/460fab22b65138531082910702f74b048b25237b","https://git.kernel.org/stable/c/102e3dc5ab5ba052e294819e83384166b242c1ec","https://git.kernel.org/stable/c/2920af33d097ca335e492b346af70b72986ad6dc","https://git.kernel.org/stable/c/85d8eaefc052cf3e5ae2c7bafeda2db68b8898b4","https://git.kernel.org/stable/c/c5e68706527968282e49de205cc2b935823cb88a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97948","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97948","identifiers":["CVE-2026-97948"]},"retained":false,"historicalAffected":[]}],"coverage":[]}