{"id":"CVE-2026-97948","title":"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 …","summary":"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 …","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-764"],"vendor":"Linux","product":"Linux","affected":["Linux >= 502f08831a9afb72dc98a56ae6504da43e93b250 < 3833dfae0680b6b16e2469fbc90aa48376311cd8","Linux >= f56e004b781719d8fdf6c9619b15caf2579bc1f2 < 24524fca27da674668941440e8e05cdfec0b0222","Linux >= 59c6d3d81d42bf543c90597b4f38c53d6874c5a1 < a58531181363219fa5de2b53d5d7274dcdfca98b","Linux >= a426e8a6ae161f51888585b065db0f8f93ab2e16 < 460fab22b65138531082910702f74b048b25237b","Linux >= d2c60a8a387e9fcc28447ef36c03f8e49fd052a6 < 102e3dc5ab5ba052e294819e83384166b242c1ec","Linux >= 1010b4c012b0d78dfb9d3132b49aa2ef024a07a7 < 2920af33d097ca335e492b346af70b72986ad6dc","Linux >= 1010b4c012b0d78dfb9d3132b49aa2ef024a07a7 < 85d8eaefc052cf3e5ae2c7bafeda2db68b8898b4","Linux >= 1010b4c012b0d78dfb9d3132b49aa2ef024a07a7 < c5e68706527968282e49de205cc2b935823cb88a","Linux d42bbd8f30ac38b1ce54715bf08ec3dac18d6b25","Linux 19d5036e7ad766cf212aebec23b9f1d7924a62bc","Linux >= 5.10.241 < 5.10.271","Linux >= 5.15.190 < 5.15.222","Linux >= 6.1.148 < 6.1.189","Linux >= 6.6.102 < 6.6.158","Linux >= 6.12.42 < 6.12.111","Linux >= 6.15.10 < 6.16","Linux >= 6.16.1 < 6.17","Linux 6.17"],"published":"2026-09-25","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:18:19.963","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97948","references":[{"url":"https://git.kernel.org/stable/c/102e3dc5ab5ba052e294819e83384166b242c1ec","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/24524fca27da674668941440e8e05cdfec0b0222","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2920af33d097ca335e492b346af70b72986ad6dc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3833dfae0680b6b16e2469fbc90aa48376311cd8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/460fab22b65138531082910702f74b048b25237b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/85d8eaefc052cf3e5ae2c7bafeda2db68b8898b4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a58531181363219fa5de2b53d5d7274dcdfca98b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c5e68706527968282e49de205cc2b935823cb88a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97948.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97948"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541132"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97948"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97948"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97948.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00176,"epssPercentile":0.07121,"cvssSource":"vendor","ingestedAt":"2026-09-25T11:06:38.879Z","slug":"CVE-2026-97948","body":"## Overview\n\nIn 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).\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97948.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":213351,"id":"CVE-2026-97948","ts":1790754698081,"field":"cvss","old":null,"new":"5.5"},{"seq":213350,"id":"CVE-2026-97948","ts":1790754698081,"field":"severity","old":"none","new":"medium"}]}