net/mlx5: Fix error path in multi-packet WQE transmit
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix error path in multi-packet WQE transmit Remove the erroneous unmap in case no DMA mapping was established The multi-packet WQE transmit code attempts to obtain a DMA mapping for the skb. This could fail, e.g. under memory pressure, when the IOMMU driver just can't allocate more memory for page tables. While the code tries to handle this in the path below the err_unmap label it erroneously unmaps one entry from the sq's FIFO list of active mappings. Since the current map attempt failed this unmap is removing some random DMA mapping that might still be required. If the PCI function now presents that IOVA, the IOMMU may assumes a rogue DMA access and e.g. on s390 puts the PCI function in error state. The erroneous behavior was seen in a stress-test environment that created memory pressure.
CVE-2024-50001
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-2024-50001
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": "5af75c747e2a868abbf8611494b50ed5e076fca7",
"lessThan": "ca36d6c1a49b6965c86dd528a73f38bc62d9c625",
"versionType": "git"
},
{
"status": "affected",
"version": "5af75c747e2a868abbf8611494b50ed5e076fca7",
"lessThan": "ce828b347cf1b3c1b12b091d02463c35ce5097f5",
"versionType": "git"
},
{
"status": "affected",
"version": "5af75c747e2a868abbf8611494b50ed5e076fca7",
"lessThan": "fc357e78176945ca7bcacf92ab794b9ccd41b4f4",
"versionType": "git"
},
{
"status": "affected",
"version": "5af75c747e2a868abbf8611494b50ed5e076fca7",
"lessThan": "26fad69b34fcba80d5c7d9e651f628e6ac927754",
"versionType": "git"
},
{
"status": "affected",
"version": "5af75c747e2a868abbf8611494b50ed5e076fca7",
"lessThan": "ecf310aaf256acbc8182189fe0aa1021c3ddef72",
"versionType": "git"
},
{
"status": "affected",
"version": "5af75c747e2a868abbf8611494b50ed5e076fca7",
"lessThan": "8bb8c12fb5e2b1f03d603d493c92941676f109b5",
"versionType": "git"
},
{
"status": "affected",
"version": "5af75c747e2a868abbf8611494b50ed5e076fca7",
"lessThan": "2bcae12c795f32ddfbf8c80d1b5f1d3286341c32",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/mellanox/mlx5/core/en_tx.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.227",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.168",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.113",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.55",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.10.14",
"versionType": "semver",
"lessThanOrEqual": "6.10.*"
},
{
"status": "unaffected",
"version": "6.11.3",
"versionType": "semver",
"lessThanOrEqual": "6.11.*"
},
{
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/mellanox/mlx5/core/en_tx.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-50001
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #26769 · Revision 1
- Added to Heist Feed
- Publisher date