| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: pciehp: Fix infinite loop in IRQ handler upon power fault\n\nThe Power Fault Detected bit in the Slot Status register differs from\nall other hotplug events in that it is sticky: It can only be cleared\nafter turning off slot power. Per PCIe r5.0, sec. 6.7.1.8:\n\n If a power controller detects a main power fault on the hot-plug slot,\n it must automatically set its internal main power fault latch [...].\n The main power fault latch is cleared when software turns off power to\n the hot-plug slot.\n\nThe stickiness used to cause interrupt storms and infinite loops which\nwere fixed in 2009 by commits 5651c48cfafe (\"PCI pciehp: fix power fault\ninterrupt storm problem\") and 99f0169c17f3 (\"PCI: pciehp: enable\nsoftware notification on empty slots\").\n\nUnfortunately in 2020 the infinite loop issue was inadvertently\nreintroduced by commit 8edf5332c393 (\"PCI: pciehp: Fix MSI interrupt\nrace\"): The hardirq handler pciehp_isr() clears the PFD bit until\npciehp's power_fault_detected flag is set. That happens in the IRQ\nthread pciehp_ist(), which never learns of the event because the hardirq\nhandler is stuck in an infinite loop. Fix by setting the\npower_fault_detected flag already in the hardirq handler." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/pci/hotplug/pciehp_hpc.c" |
| ], |
| "versions": [ |
| { |
| "version": "a8cc52270f3d8e8f4faf01ffd6c4a95bbfb55ba4", |
| "lessThan": "ff27f7d0333cff89ec85c419f431aca1b38fb16a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "4667358dab9cc07da044d5bc087065545b1000df", |
| "lessThan": "464da38ba827f670deac6500a1de9a4f0f44c41d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "8edf5332c39340b9583cf9cba659eb7ec71f75b5", |
| "lessThan": "3b4c966fb156ff3e70b2526d964952ff7c1574d9", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "8edf5332c39340b9583cf9cba659eb7ec71f75b5", |
| "lessThan": "1db58c6584a72102e98af2e600ea184ddaf2b8af", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "8edf5332c39340b9583cf9cba659eb7ec71f75b5", |
| "lessThan": "6d6f1f0dac3e3441ecdb1103d4efb11b9ed24dd5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "8edf5332c39340b9583cf9cba659eb7ec71f75b5", |
| "lessThan": "23584c1ed3e15a6f4bfab8dc5a88d94ab929ee12", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/pci/hotplug/pciehp_hpc.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.7", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.7", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.233", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.177", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.97", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.20", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.16.6", |
| "lessThanOrEqual": "5.16.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.17", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.19.149", |
| "versionEndExcluding": "4.19.233" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.4.69", |
| "versionEndExcluding": "5.4.177" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.7", |
| "versionEndExcluding": "5.10.97" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.7", |
| "versionEndExcluding": "5.15.20" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.7", |
| "versionEndExcluding": "5.16.6" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.7", |
| "versionEndExcluding": "5.17" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/ff27f7d0333cff89ec85c419f431aca1b38fb16a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/464da38ba827f670deac6500a1de9a4f0f44c41d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/3b4c966fb156ff3e70b2526d964952ff7c1574d9" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1db58c6584a72102e98af2e600ea184ddaf2b8af" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6d6f1f0dac3e3441ecdb1103d4efb11b9ed24dd5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/23584c1ed3e15a6f4bfab8dc5a88d94ab929ee12" |
| } |
| ], |
| "title": "PCI: pciehp: Fix infinite loop in IRQ handler upon power fault", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47617", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
