{"cve":"CVE-2024-35968","nvd":{"published":"2024-05-20T10:15:11.713","modified":"2026-08-04T11:18:16.620","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: Fix pdsc_check_pci_health function to use work thread\n\nWhen the driver notices fw_status == 0xff it tries to perform a PCI\nreset on itself via pci_reset_function() in the context of the driver's\nhealth thread. However, pdsc_reset_prepare calls\npdsc_stop_health_thread(), which attempts to stop/flush the health\nthread. This results in a deadlock because the stop/flush will never\ncomplete since the driver called pci_reset_function() from the health\nthread context. Fix by changing the pdsc_check_pci_health_function()\nto queue a newly introduced pdsc_pci_reset_thread() on the pdsc's\nwork queue.\n\nUnloading the driver in the fw_down/dead state uncovered another issue,\nwhich can be seen in the following trace:\n\nWARNING: CPU: 51 PID: 6914 at kernel/workqueue.c:1450 __queue_work+0x358/0x440\n[...]\nRIP: 0010:__queue_work+0x358/0x440\n[...]\nCall Trace:\n <TASK>\n ? __warn+0x85/0x140\n ? __queue_work+0x358/0x440\n ? report_bug+0xfc/0x1e0\n ? handle_bug+0x3f/0x70\n ? exc_invalid_op+0x17/0x70\n ? asm_exc_invalid_op+0x1a/0x20\n ? __queue_work+0x358/0x440\n queue_work_on+0x28/0x30\n pdsc_devcmd_locked+0x96/0xe0 [pds_core]\n pdsc_devcmd_reset+0x71/0xb0 [pds_core]\n pdsc_teardown+0x51/0xe0 [pds_core]\n pdsc_remove+0x106/0x200 [pds_core]\n pci_device_remove+0x37/0xc0\n device_release_driver_internal+0xae/0x140\n driver_detach+0x48/0x90\n bus_remove_driver+0x6d/0xf0\n pci_unregister_driver+0x2e/0xa0\n pdsc_cleanup_module+0x10/0x780 [pds_core]\n __x64_sys_delete_module+0x142/0x2b0\n ? syscall_trace_enter.isra.18+0x126/0x1a0\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\nRIP: 0033:0x7fbd9d03a14b\n[...]\n\nFix this by preventing the devcmd reset if the FW is not running.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-667"],"references":["https://git.kernel.org/stable/c/38407914d48273d7f8ab765b9243658afe1c3ab6","https://git.kernel.org/stable/c/81665adf25d28a00a986533f1d3a5df76b79cad9","https://git.kernel.org/stable/c/38407914d48273d7f8ab765b9243658afe1c3ab6","https://git.kernel.org/stable/c/81665adf25d28a00a986533f1d3a5df76b79cad9"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2024-35968","score":0.00158,"percentile":0.04886,"date":"2026-10-31"},"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."]}