{"id":"CVE-2024-35809","state":"PUBLISHED","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.","publishedAt":"2024-05-17T13:23:16.168Z","updatedAt":"2026-10-15T00:40:53.084Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"9a87375bb586515c0af63d5dcdcd58ec4acf20a6","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"47d8aafcfe313511a98f165a54d0adceb34e54b1","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"bbe068b24409ef740657215605284fc7cdddd491","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"7cc94dd36e48879e76ae7a8daea4ff322b7d9674","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"900b81caf00c89417172afe0e7e49ac4eb110f4b","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"d86ad8c3e152349454b82f37007ff6ba45f26989","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"d534198311c345e4b062c4b88bb609efb8bd91d5","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"6347348c6aba52dda0b33296684cbb627bdc6970","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"9d5286d4e7f68beab450deddbb6a32edd5ecf4bf","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-driver.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.36","versionType":"semver"},{"version":"4.19.312","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.274","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.215","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.154","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.84","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.24","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.12","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8.3","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-driver.c"]}],"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","https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","https://cert-portal.siemens.com/productcert/html/ssa-398330.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:30.303Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/35xxx/CVE-2024-35809.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-35809","state":"PUBLISHED","datePublished":"2024-05-17T13:23:16.168Z","dateUpdated":"2026-10-15T00:40:53.084Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-17T12:19:12.342Z"},"containers":{"cna":{"title":"PCI/PM: Drain runtime-idle callbacks before driver removal","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"9a87375bb586515c0af63d5dcdcd58ec4acf20a6","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"47d8aafcfe313511a98f165a54d0adceb34e54b1","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"bbe068b24409ef740657215605284fc7cdddd491","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"7cc94dd36e48879e76ae7a8daea4ff322b7d9674","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"900b81caf00c89417172afe0e7e49ac4eb110f4b","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"d86ad8c3e152349454b82f37007ff6ba45f26989","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"d534198311c345e4b062c4b88bb609efb8bd91d5","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"6347348c6aba52dda0b33296684cbb627bdc6970","versionType":"git"},{"version":"f3ec4f87d607f40497afdb5ac03f11e2ea253d52","status":"affected","lessThan":"9d5286d4e7f68beab450deddbb6a32edd5ecf4bf","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-driver.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.36","versionType":"semver"},{"version":"4.19.312","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.274","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.215","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.154","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.84","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.24","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.12","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8.3","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-driver.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/9a87375bb586515c0af63d5dcdcd58ec4acf20a6"},{"url":"https://git.kernel.org/stable/c/47d8aafcfe313511a98f165a54d0adceb34e54b1"},{"url":"https://git.kernel.org/stable/c/bbe068b24409ef740657215605284fc7cdddd491"},{"url":"https://git.kernel.org/stable/c/7cc94dd36e48879e76ae7a8daea4ff322b7d9674"},{"url":"https://git.kernel.org/stable/c/900b81caf00c89417172afe0e7e49ac4eb110f4b"},{"url":"https://git.kernel.org/stable/c/d86ad8c3e152349454b82f37007ff6ba45f26989"},{"url":"https://git.kernel.org/stable/c/d534198311c345e4b062c4b88bb609efb8bd91d5"},{"url":"https://git.kernel.org/stable/c/6347348c6aba52dda0b33296684cbb627bdc6970"},{"url":"https://git.kernel.org/stable/c/9d5286d4e7f68beab450deddbb6a32edd5ecf4bf"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:11:26.724Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"4.19.312"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"5.4.274"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"5.10.215"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"5.15.154"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.1.84"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.6.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.7.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.8.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.9"}]}]}],"x_generator":{"engi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