PCI/PM: Drain runtime-idle callbacks before driver removal
In the Linux kernel, the following vulnerability has been resolved: PCI/PM: Drain runtime-idle callbacks before driver removal A race condition between the .runtime_idle() callback and the .remove() callback in the rtsx_pcr PCI driver leads to a kernel crash due to an unhandled page fault [1]. The problem is that rtsx_pci_runtime_idle() is not expected to be running after pm_runtime_get_sync() has been called, but the latter doesn't really guarantee that. It only guarantees that the suspend and resume callbacks will not be running when it returns. However, if a .runtime_idle() callback is already running when pm_runtime_get_sync() is called, the latter will notice that the runtime PM status of the device is RPM_ACTIVE and it will return right away without waiting for the former to complete. In fact, it cannot wait for .runtime_idle() to complete because it may be called from that callback (it arguably does not make much sense to do that, but it is not strictly prohibited). Thus in general, whoever is providing a .runtime_idle() callback needs to protect it from running in parallel with whatever code runs after pm_runtime_get_sync(). [Note that .runtime_idle() will not start after pm_runtime_get_sync() has returned, but it may continue running then if it has started earlier.] One way to address that race condition is to call pm_runtime_barrier() after pm_runtime_get_sync() (not before it, because a nonzero value of the runtime PM usage counter is necessary to prevent runtime P
CVE-2024-35809
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-2024-35809
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": "f3ec4f87d607f40497afdb5ac03f11e2ea253d52",
"lessThan": "9a87375bb586515c0af63d5dcdcd58ec4acf20a6",
"versionType": "git"
},
{
"status": "affected",
"version": "f3ec4f87d607f40497afdb5ac03f11e2ea253d52",
"lessThan": "47d8aafcfe313511a98f165a54d0adceb34e54b1",
"versionType": "git"
},
{
"status": "affected",
"version": "f3ec4f87d607f40497afdb5ac03f11e2ea253d52",
"lessThan": "bbe068b24409ef740657215605284fc7cdddd491",
"versionType": "git"
},
{
"status": "affected",
"version": "f3ec4f87d607f40497afdb5ac03f11e2ea253d52",
"lessThan": "7cc94dd36e48879e76ae7a8daea4ff322b7d9674",
"versionType": "git"
},
{
"status": "affected",
"version": "f3ec4f87d607f40497afdb5ac03f11e2ea253d52",
"lessThan": "900b81caf00c89417172afe0e7e49ac4eb110f4b",
"versionType": "git"
},
{
"status": "affected",
"version": "f3ec4f87d607f40497afdb5ac03f11e2ea253d52",
"lessThan": "d86ad8c3e152349454b82f37007ff6ba45f26989",
"versionType": "git"
},
{
"status": "affected",
"version": "f3ec4f87d607f40497afdb5ac03f11e2ea253d52",
"lessThan": "d534198311c345e4b062c4b88bb609efb8bd91d5",
"versionType": "git"
},
{
"status": "affected",
"version": "f3ec4f87d607f40497afdb5ac03f11e2ea253d52",
"lessThan": "6347348c6aba52dda0b33296684cbb627bdc6970",
"versionType": "git"
},
{
"status": "affected",
"version": "f3ec4f87d607f40497afdb5ac03f11e2ea253d52",
"lessThan": "9d5286d4e7f68beab450deddbb6a32edd5ecf4bf",
"versionType": "git"
}
],
"programFiles": [
"drivers/pci/pci-driver.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.36"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.36",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.312",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.274",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.215",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.154",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.84",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.24",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7.12",
"versionType": "semver",
"lessThanOrEqual": "6.7.*"
},
{
"status": "unaffected",
"version": "6.8.3",
"versionType": "semver",
"lessThanOrEqual": "6.8.*"
},
{
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/pci/pci-driver.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-35809
Source reference:
/cveMetadata/cveId
Publisher severity
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- Event
- #26517 · Revision 1
- Added to Heist Feed
- Publisher date