{"id":"CVE-2024-35809","revision":"4b551a784fd64e59b5cfd1d4cbed744a","records":[{"revision":"4b551a784fd64e59b5cfd1d4cbed744a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-35809","aliases":[],"title":"PCI/PM: Drain runtime-idle callbacks before driver removal","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/PM: Drain runtime-idle callbacks before driver removal\n\nA race condition between the .runtime_idle() callback and the .remove()\ncallback in the rtsx_pcr PCI driver leads to a kernel crash due to an\nunhandled page fault [1].\n\nThe problem is that rtsx_pci_runtime_idle() is not expected to be running\nafter pm_runtime_get_sync() has been called, but the latter doesn't really\nguarantee that.  It only guarantees that the suspend and resume callbacks\nwill not be running when it returns.\n\nHowever, if a .runtime_idle() callback is already running when\npm_runtime_get_sync() is called, the latter will notice that the runtime PM\nstatus of the device is RPM_ACTIVE and it will return right away without\nwaiting for the former to complete.  In fact, it cannot wait for\n.runtime_idle() to complete because it may be called from that callback (it\narguably does not make much sense to do that, but it is not strictly\nprohibited).\n\nThus in general, whoever is providing a .runtime_idle() callback needs\nto protect it from running in parallel with whatever code runs after\npm_runtime_get_sync().  [Note that .runtime_idle() will not start after\npm_runtime_get_sync() has returned, but it may continue running then if it\nhas started earlier.]\n\nOne way to address that race condition is to call pm_runtime_barrier()\nafter pm_runtime_get_sync() (not before it, because a nonzero value of the\nruntime PM usage counter is necessary to prevent runtime PM callbacks from\nbeing invoked) to wait for the .runtime_idle() callback to complete should\nit be running at that point.  A suitable place for doing that is in\npci_device_remove() which calls pm_runtime_get_sync() before removing the\ndriver, so it may as well call pm_runtime_barrier() subsequently, which\nwill prevent the race in question from occurring, not just in the rtsx_pcr\ndriver, but in any PCI drivers providing .runtime_idle() callbacks.","state":0,"publishedAt":"2024-05-17T13:23:16.168+00:00","modifiedAt":"2026-10-15T00:40:53.084+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                        \"drivers/pci/pci-driver.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f3ec4f87d607f40497afdb5ac03f11e2ea253d52\",\n                            \"lessThan\": \"9a87375bb586515c0af63d5dcdcd58ec4acf20a6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f3ec4f87d607f40497afdb5ac03f11e2ea253d52\",\n                            \"lessThan\": \"47d8aafcfe313511a98f165a54d0adceb34e54b1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f3ec4f87d607f40497afdb5ac03f11e2ea253d52\",\n                            \"lessThan\": \"bbe068b24409ef740657215605284fc7cdddd491\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f3ec4f87d607f40497afdb5ac03f11e2ea253d52\",\n                            \"lessThan\": \"7cc94dd36e48879e76ae7a8daea4ff322b7d9674\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f3ec4f87d607f40497afdb5ac03f11e2ea253d52\",\n                            \"lessThan\": \"900b81caf00c89417172afe0e7e49ac4eb110f4b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f3ec4f87d607f40497afdb5ac03f11e2ea253d52\",\n                            \"lessThan\": \"d86ad8c3e152349454b82f37007ff6ba45f26989\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f3ec4f87d607f40497afdb5ac03f11e2ea253d52\",\n                            \"lessThan\": \"d534198311c345e4b062c4b88bb609efb8bd91d5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f3ec4f87d607f40497afdb5ac03f11e2ea253d52\",\n                            \"lessThan\": \"6347348c6aba52dda0b33296684cbb627bdc6970\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f3ec4f87d607f40497afdb5ac03f11e2ea253d52\",\n                            \"lessThan\": \"9d5286d4e7f68beab450deddbb6a32edd5ecf4bf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\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                        \"drivers/pci/pci-driver.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.36\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.36\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"4.19.312\",\n                            \"lessThanOrEqual\": \"4.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.274\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.215\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.154\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.84\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.24\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.7.12\",\n                            \"lessThanOrEqual\": \"6.7.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.8.3\",\n                            \"lessThanOrEqual\": \"6.8.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.9\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/9a87375bb586515c0af63d5dcdcd58ec4acf20a6","https://git.kernel.org/stable/c/47d8aafcfe313511a98f165a54d0adceb34e54b1","https://git.kernel.org/stable/c/bbe068b24409ef740657215605284fc7cdddd491","https://git.kernel.org/stable/c/7cc94dd36e48879e76ae7a8daea4ff322b7d9674","https://git.kernel.org/stable/c/900b81caf00c89417172afe0e7e49ac4eb110f4b","https://git.kernel.org/stable/c/d86ad8c3e152349454b82f37007ff6ba45f26989","https://git.kernel.org/stable/c/d534198311c345e4b062c4b88bb609efb8bd91d5","https://git.kernel.org/stable/c/6347348c6aba52dda0b33296684cbb627bdc6970","https://git.kernel.org/stable/c/9d5286d4e7f68beab450deddbb6a32edd5ecf4bf"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-35809","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-35809","identifiers":["CVE-2024-35809"]},"retained":false,"historicalAffected":[]}],"coverage":[]}