| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfpga: bridge: add owner module and take its refcount\n\nThe current implementation of the fpga bridge assumes that the low-level\nmodule registers a driver for the parent device and uses its owner pointer\nto take the module's refcount. This approach is problematic since it can\nlead to a null pointer dereference while attempting to get the bridge if\nthe parent device does not have a driver.\n\nTo address this problem, add a module owner pointer to the fpga_bridge\nstruct and use it to take the module's refcount. Modify the function for\nregistering a bridge to take an additional owner module parameter and\nrename it to avoid conflicts. Use the old function name for a helper macro\nthat automatically sets the module that registers the bridge as the owner.\nThis ensures compatibility with existing low-level control modules and\nreduces the chances of registering a bridge without setting the owner.\n\nAlso, update the documentation to keep it consistent with the new interface\nfor registering an fpga bridge.\n\nOther changes: opportunistically move put_device() from __fpga_bridge_get()\nto fpga_bridge_get() and of_fpga_bridge_get() to improve code clarity since\nthe bridge device is taken in these functions." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "Documentation/driver-api/fpga/fpga-bridge.rst", |
| "drivers/fpga/fpga-bridge.c", |
| "include/linux/fpga/fpga-bridge.h" |
| ], |
| "versions": [ |
| { |
| "version": "21aeda950c5f84a8351b862816d832120b217a9b", |
| "lessThan": "18dc8366abb6cadcb77668b1a16434654e355d49", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "21aeda950c5f84a8351b862816d832120b217a9b", |
| "lessThan": "d7c4081c54a1d4068de9440957303a76f9e5c95b", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "21aeda950c5f84a8351b862816d832120b217a9b", |
| "lessThan": "6896b6b2e2d9ec4e1b0acb4c1698a75a4b34d125", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "21aeda950c5f84a8351b862816d832120b217a9b", |
| "lessThan": "1da11f822042eb6ef4b6064dc048f157a7852529", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "Documentation/driver-api/fpga/fpga-bridge.rst", |
| "drivers/fpga/fpga-bridge.c", |
| "include/linux/fpga/fpga-bridge.h" |
| ], |
| "versions": [ |
| { |
| "version": "4.10", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.10", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.120", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.33", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.9.4", |
| "lessThanOrEqual": "6.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.10", |
| "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": "4.10", |
| "versionEndExcluding": "6.1.120" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.10", |
| "versionEndExcluding": "6.6.33" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.10", |
| "versionEndExcluding": "6.9.4" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.10", |
| "versionEndExcluding": "6.10" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/18dc8366abb6cadcb77668b1a16434654e355d49" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/d7c4081c54a1d4068de9440957303a76f9e5c95b" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6896b6b2e2d9ec4e1b0acb4c1698a75a4b34d125" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1da11f822042eb6ef4b6064dc048f157a7852529" |
| } |
| ], |
| "title": "fpga: bridge: add owner module and take its refcount", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-36479", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
