usb: typec: altmode should keep reference to parent
In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmode should keep reference to parent The altmode device release refers to its parent device, but without keeping a reference to it. When registering the altmode, get a reference to the parent and put it in the release function. Before this fix, when using CONFIG_DEBUG_KOBJECT_RELEASE, we see issues like this: [ 43.572860] kobject: 'port0.0' (ffff8880057ba008): kobject_release, parent 0000000000000000 (delayed 3000) [ 43.573532] kobject: 'port0.1' (ffff8880057bd008): kobject_release, parent 0000000000000000 (delayed 1000) [ 43.574407] kobject: 'port0' (ffff8880057b9008): kobject_release, parent 0000000000000000 (delayed 3000) [ 43.575059] kobject: 'port1.0' (ffff8880057ca008): kobject_release, parent 0000000000000000 (delayed 4000) [ 43.575908] kobject: 'port1.1' (ffff8880057c9008): kobject_release, parent 0000000000000000 (delayed 4000) [ 43.576908] kobject: 'typec' (ffff8880062dbc00): kobject_release, parent 0000000000000000 (delayed 4000) [ 43.577769] kobject: 'port1' (ffff8880057bf008): kobject_release, parent 0000000000000000 (delayed 3000) [ 46.612867] ================================================================== [ 46.613402] BUG: KASAN: slab-use-after-free in typec_altmode_release+0x38/0x129 [ 46.614003] Read of size 8 at addr ffff8880057b9118 by task kworker/2:1/48 [ 46.614538] [ 46.614668] CPU: 2 UID: 0 PID: 48 Comm: kworker/2:1 Not tainted 6.12.0-rc1-00138-gedbae730ad31 #535 [ 46.
CVE-2024-50150
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-2024-50150
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": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
"lessThan": "2b0b33e8a58388fa9078f0fbe9af1900e6b08879",
"versionType": "git"
},
{
"status": "affected",
"version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
"lessThan": "2c15c4133d00f5da632fce60ed013fc31aa9aa58",
"versionType": "git"
},
{
"status": "affected",
"version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
"lessThan": "6af43ec3bf40f8b428d9134ffa7a291aecd60da8",
"versionType": "git"
},
{
"status": "affected",
"version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
"lessThan": "87474406056891e4fdea0794e1f632b21b3dfa27",
"versionType": "git"
},
{
"status": "affected",
"version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
"lessThan": "bee1b68cb8bcee4fd3a8bde3a4886e0b1375dc4d",
"versionType": "git"
},
{
"status": "affected",
"version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
"lessThan": "1ded6b12499e6dee9b0e1ceac633be36538f6fc2",
"versionType": "git"
},
{
"status": "affected",
"version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
"lessThan": "68a7c7fe322546be1464174c8d85874b8161deda",
"versionType": "git"
},
{
"status": "affected",
"version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
"lessThan": "befab3a278c59db0cc88c8799638064f6d3fd6f8",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/typec/class.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.19"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.19",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.323",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.285",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.229",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.170",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.115",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.59",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.11.6",
"versionType": "semver",
"lessThanOrEqual": "6.11.*"
},
{
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/typec/class.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-50150
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #26790 · Revision 1
- Added to Heist Feed
- Publisher date