iommu: Return right value in iommu_sva_bind_device()
In the Linux kernel, the following vulnerability has been resolved: iommu: Return right value in iommu_sva_bind_device() iommu_sva_bind_device() should return either a sva bond handle or an ERR_PTR value in error cases. Existing drivers (idxd and uacce) only check the return value with IS_ERR(). This could potentially lead to a kernel NULL pointer dereference issue if the function returns NULL instead of an error pointer. In reality, this doesn't cause any problems because iommu_sva_bind_device() only returns NULL when the kernel is not configured with CONFIG_IOMMU_SVA. In this case, iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) will return an error, and the device drivers won't call iommu_sva_bind_device() at all.
CVE-2024-40945
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-40945
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
"lessThan": "700f564758882db7c039dfba9443fe762561a3f8",
"versionType": "git"
},
{
"status": "affected",
"version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
"lessThan": "cf34f8f66982a36e5cba0d05781b21ec9606b91e",
"versionType": "git"
},
{
"status": "affected",
"version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
"lessThan": "2973b8e7d127754de9013177c41c0b5547406998",
"versionType": "git"
},
{
"status": "affected",
"version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
"lessThan": "6325eab6c108fed27f60ff51852e3eac0ba23f3f",
"versionType": "git"
},
{
"status": "affected",
"version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
"lessThan": "7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6",
"versionType": "git"
},
{
"status": "affected",
"version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
"lessThan": "61a96da9649a6b6a1a5d5bde9374b045fdb5c12e",
"versionType": "git"
},
{
"status": "affected",
"version": "26b25a2b98e45aeb40eedcedc586ad5034cbd984",
"lessThan": "89e8a2366e3bce584b6c01549d5019c5cda1205e",
"versionType": "git"
}
],
"programFiles": [
"include/linux/iommu.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.279",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.221",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.162",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.129",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.35",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.9.6",
"versionType": "semver",
"lessThanOrEqual": "6.9.*"
},
{
"status": "unaffected",
"version": "6.10",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"include/linux/iommu.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-40945
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26643 · Revision 1
- Added to Heist Feed
- Publisher date