CVE-2023-52455
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-52455
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52455.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-52455
- Downstream
- Related
- Published
- 2024-02-23T14:46:18Z
- Modified
- 2025-10-21T14:17:21.699484Z
- Summary
- iommu: Don't reserve 0-length IOVA region
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
iommu: Don't reserve 0-length IOVA region
When the bootloader/firmware doesn't setup the framebuffers, their address and size are 0 in "iommu-addresses" property. If IOVA region is reserved with 0 length, then it ends up corrupting the IOVA rbtree with an entry which has pfnhi < pfnlo. If we intend to use display driver in kernel without framebuffer then it's causing the display IOMMU mappings to fail as entire valid IOVA space is reserved when address and length are passed as 0. An ideal solution would be firmware removing the "iommu-addresses" property and corresponding "memory-region" if display is not present. But the kernel should be able to handle this by checking for size of IOVA region and skipping the IOVA reservation if size is 0. Also, add a warning if firmware is requesting 0-length IOVA region reservation.
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda5bf3cfce8cb77d9d24613ab52d520896f83dd48Fixed98b8a550da83cc392a14298c4b3eaaf0332ae6ad
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda5bf3cfce8cb77d9d24613ab52d520896f83dd48Fixed5e23e283910c9f30248732ae0770bcb0c9438abf
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda5bf3cfce8cb77d9d24613ab52d520896f83dd48Fixedbb57f6705960bebeb832142ce9abf43220c3eab1
Affected versions
v6.*
v6.2
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.11
v6.6.12
v6.6.13
v6.6.2
v6.6.3
v6.6.4
v6.6.5
v6.6.6
v6.6.7
v6.6.8
v6.6.9
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.7.1
Database specific
vanir_signatures
[
{
"signature_version": "v1",
"deprecated": false,
"digest": {
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"182289715756828101756102850620699082893"
],
"threshold": 0.9
},
"target": {
"file": "drivers/iommu/of_iommu.c"
},
"id": "CVE-2023-52455-4778fb6f",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5e23e283910c9f30248732ae0770bcb0c9438abf",
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},
{
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],
"threshold": 0.9
},
"target": {
"file": "drivers/iommu/of_iommu.c"
},
"id": "CVE-2023-52455-622638f6",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@bb57f6705960bebeb832142ce9abf43220c3eab1",
"signature_type": "Line"
},
{
"signature_version": "v1",
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"digest": {
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],
"threshold": 0.9
},
"target": {
"file": "drivers/iommu/of_iommu.c"
},
"id": "CVE-2023-52455-a490cc16",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@98b8a550da83cc392a14298c4b3eaaf0332ae6ad",
"signature_type": "Line"
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{
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"digest": {
"function_hash": "308156761060002293492477580207011626455",
"length": 1116.0
},
"target": {
"function": "of_iommu_get_resv_regions",
"file": "drivers/iommu/of_iommu.c"
},
"id": "CVE-2023-52455-b02a969f",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@bb57f6705960bebeb832142ce9abf43220c3eab1",
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"digest": {
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},
"target": {
"function": "of_iommu_get_resv_regions",
"file": "drivers/iommu/of_iommu.c"
},
"id": "CVE-2023-52455-d342459e",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5e23e283910c9f30248732ae0770bcb0c9438abf",
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"length": 1116.0
},
"target": {
"function": "of_iommu_get_resv_regions",
"file": "drivers/iommu/of_iommu.c"
},
"id": "CVE-2023-52455-e1912044",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@98b8a550da83cc392a14298c4b3eaaf0332ae6ad",
"signature_type": "Function"
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]