PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init()
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init() Instead of getting the epc_features from pci_epc_get_features() API, use the cached pci_epf_test::epc_features value to avoid the NULL check. Since the NULL check is already performed in pci_epf_test_bind(), having one more check in pci_epf_test_core_init() is redundant and it is not possible to hit the NULL pointer dereference. Also with commit a01e7214bef9 ("PCI: endpoint: Remove "core_init_notifier" flag"), 'epc_features' got dereferenced without the NULL check, leading to the following false positive Smatch warning: drivers/pci/endpoint/functions/pci-epf-test.c:784 pci_epf_test_core_init() error: we previously assumed 'epc_features' could be null (see line 747) Thus, remove the redundant NULL check and also use the epc_features:: {msix_capable/msi_capable} flags directly to avoid local variables. [kwilczynski: commit log]
CVE-2024-43824
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-2024-43824
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": "5e50ee27d4a52a817ab152128c48690ec7c5cdf1",
"lessThan": "97cee643a825808711cc78475fd61a30824b7a0f",
"versionType": "git"
},
{
"status": "affected",
"version": "5e50ee27d4a52a817ab152128c48690ec7c5cdf1",
"lessThan": "af4ad016abb1632ff7ee598a6037952b495e5b80",
"versionType": "git"
},
{
"status": "affected",
"version": "5e50ee27d4a52a817ab152128c48690ec7c5cdf1",
"lessThan": "5a5095a8bd1bd349cce1c879e5e44407a34dda8a",
"versionType": "git"
}
],
"programFiles": [
"drivers/pci/endpoint/functions/pci-epf-test.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.10.3",
"versionType": "semver",
"lessThanOrEqual": "6.10.*"
},
{
"status": "unaffected",
"version": "6.11",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/pci/endpoint/functions/pci-epf-test.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-43824
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #45897 · Revision 1
- Added to Heist Feed
- Publisher date