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.
Vendor | Product | Version | CPE |
---|---|---|---|
linux | linux_kernel | * | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"include/linux/iommu.h"
],
"versions": [
{
"version": "26b25a2b98e4",
"lessThan": "700f56475888",
"status": "affected",
"versionType": "git"
},
{
"version": "26b25a2b98e4",
"lessThan": "cf34f8f66982",
"status": "affected",
"versionType": "git"
},
{
"version": "26b25a2b98e4",
"lessThan": "2973b8e7d127",
"status": "affected",
"versionType": "git"
},
{
"version": "26b25a2b98e4",
"lessThan": "7388ae6f26c0",
"status": "affected",
"versionType": "git"
},
{
"version": "26b25a2b98e4",
"lessThan": "61a96da9649a",
"status": "affected",
"versionType": "git"
},
{
"version": "26b25a2b98e4",
"lessThan": "89e8a2366e3b",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"include/linux/iommu.h"
],
"versions": [
{
"version": "5.2",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.2",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.4.279",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.221",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.162",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.35",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.9.6",
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.10",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/2973b8e7d127754de9013177c41c0b5547406998
git.kernel.org/stable/c/61a96da9649a6b6a1a5d5bde9374b045fdb5c12e
git.kernel.org/stable/c/700f564758882db7c039dfba9443fe762561a3f8
git.kernel.org/stable/c/7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6
git.kernel.org/stable/c/89e8a2366e3bce584b6c01549d5019c5cda1205e
git.kernel.org/stable/c/cf34f8f66982a36e5cba0d05781b21ec9606b91e