In the Linux kernel, the following vulnerability has been resolved:
powerpc/iommu: fix memory leak with using debugfs_lookup()
When calling debugfslookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfslookupandremove() instead which handles all of the logic at once.
[
{
"id": "CVE-2023-53097-19dae0c0",
"digest": {
"threshold": 0.9,
"line_hashes": [
"46459448454532187158911054274929923942",
"315313328621484579325651334469896158850",
"27755997253991621284463917396139180313",
"168309375236737256323932191243123034711",
"44327271879123826789789349337245294880",
"165477889199169358825517575350753564060",
"213791993104698475585780090647751165816"
]
},
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4050498c0ae3946c223fc63e9dd7b878b76611e0",
"target": {
"file": "arch/powerpc/kernel/iommu.c"
},
"signature_type": "Line"
},
{
"id": "CVE-2023-53097-2046b364",
"digest": {
"function_hash": "167155056697754892510433250538538174779",
"length": 189.0
},
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@24c1bd1cd0d1ff821fd7d2f01a1e648c7882dfc2",
"target": {
"function": "iommu_debugfs_del",
"file": "arch/powerpc/kernel/iommu.c"
},
"signature_type": "Function"
},
{
"id": "CVE-2023-53097-4b321c87",
"digest": {
"threshold": 0.9,
"line_hashes": [
"46459448454532187158911054274929923942",
"315313328621484579325651334469896158850",
"27755997253991621284463917396139180313",
"168309375236737256323932191243123034711",
"44327271879123826789789349337245294880",
"165477889199169358825517575350753564060",
"213791993104698475585780090647751165816"
]
},
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@b505063910c134778202dfad9332dfcecb76bab3",
"target": {
"file": "arch/powerpc/kernel/iommu.c"
},
"signature_type": "Line"
},
{
"id": "CVE-2023-53097-660ddee7",
"digest": {
"function_hash": "167155056697754892510433250538538174779",
"length": 189.0
},
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e3a62a35f903fd8be5b44542fe3901ec45f16757",
"target": {
"function": "iommu_debugfs_del",
"file": "arch/powerpc/kernel/iommu.c"
},
"signature_type": "Function"
},
{
"id": "CVE-2023-53097-6e4756d4",
"digest": {
"threshold": 0.9,
"line_hashes": [
"46459448454532187158911054274929923942",
"315313328621484579325651334469896158850",
"27755997253991621284463917396139180313",
"168309375236737256323932191243123034711",
"44327271879123826789789349337245294880",
"165477889199169358825517575350753564060",
"213791993104698475585780090647751165816"
]
},
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e3a62a35f903fd8be5b44542fe3901ec45f16757",
"target": {
"file": "arch/powerpc/kernel/iommu.c"
},
"signature_type": "Line"
},
{
"id": "CVE-2023-53097-98576337",
"digest": {
"function_hash": "167155056697754892510433250538538174779",
"length": 189.0
},
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@b505063910c134778202dfad9332dfcecb76bab3",
"target": {
"function": "iommu_debugfs_del",
"file": "arch/powerpc/kernel/iommu.c"
},
"signature_type": "Function"
},
{
"id": "CVE-2023-53097-9dfafb0f",
"digest": {
"function_hash": "167155056697754892510433250538538174779",
"length": 189.0
},
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4050498c0ae3946c223fc63e9dd7b878b76611e0",
"target": {
"function": "iommu_debugfs_del",
"file": "arch/powerpc/kernel/iommu.c"
},
"signature_type": "Function"
},
{
"id": "CVE-2023-53097-f3a5269f",
"digest": {
"threshold": 0.9,
"line_hashes": [
"46459448454532187158911054274929923942",
"315313328621484579325651334469896158850",
"27755997253991621284463917396139180313",
"168309375236737256323932191243123034711",
"44327271879123826789789349337245294880",
"165477889199169358825517575350753564060",
"213791993104698475585780090647751165816"
]
},
"deprecated": false,
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@24c1bd1cd0d1ff821fd7d2f01a1e648c7882dfc2",
"target": {
"file": "arch/powerpc/kernel/iommu.c"
},
"signature_type": "Line"
}
]