kprobes: Fix possible use-after-free issue on kprobe registration
In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix possible use-after-free issue on kprobe registration When unloading a module, its state is changing MODULE_STATE_LIVE -> MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take a time. `is_module_text_address()` and `__module_text_address()` works with MODULE_STATE_LIVE and MODULE_STATE_GOING. If we use `is_module_text_address()` and `__module_text_address()` separately, there is a chance that the first one is succeeded but the next one is failed because module->state becomes MODULE_STATE_UNFORMED between those operations. In `check_kprobe_address_safe()`, if the second `__module_text_address()` is failed, that is ignored because it expected a kernel_text address. But it may have failed simply because module->state has been changed to MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify non-exist module text address (use-after-free). To fix this problem, we should not use separated `is_module_text_address()` and `__module_text_address()`, but use only `__module_text_address()` once and do `try_module_get(module)` which is only available with MODULE_STATE_LIVE.
CVE-2024-35955
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-2024-35955
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": "1c836bad43f3e2ff71cc397a6e6ccb4e7bd116f8",
"lessThan": "b5808d40093403334d939e2c3c417144d12a6f33",
"versionType": "git"
},
{
"status": "affected",
"version": "6a119c1a584aa7a2c6216458f1f272bf1bc93a93",
"lessThan": "93eb31e7c3399e326259f2caa17be1e821f5a412",
"versionType": "git"
},
{
"status": "affected",
"version": "2a49b025c36ae749cee7ccc4b7e456e02539cdc3",
"lessThan": "5062d1f4f07facbdade0f402d9a04a788f52e26d",
"versionType": "git"
},
{
"status": "affected",
"version": "a1edb85e60fdab1e14db63ae8af8db3f0d798fb6",
"lessThan": "2df2dd27066cdba8041e46a64362325626bdfb2e",
"versionType": "git"
},
{
"status": "affected",
"version": "28f6c37a2910f565b4f5960df52b2eccae28c891",
"lessThan": "62029bc9ff2c17a4e3a2478d83418ec575413808",
"versionType": "git"
},
{
"status": "affected",
"version": "28f6c37a2910f565b4f5960df52b2eccae28c891",
"lessThan": "d15023fb407337028a654237d8968fefdcf87c2f",
"versionType": "git"
},
{
"status": "affected",
"version": "28f6c37a2910f565b4f5960df52b2eccae28c891",
"lessThan": "36b57c7d2f8b7de224980f1a284432846ad71ca0",
"versionType": "git"
},
{
"status": "affected",
"version": "28f6c37a2910f565b4f5960df52b2eccae28c891",
"lessThan": "325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8",
"versionType": "git"
},
{
"status": "affected",
"version": "4262b6eb057d86c7829168c541654fe0d48fdac8",
"versionType": "git"
},
{
"status": "affected",
"version": "97e813e6a143edf4208e15c72199c495ed80cea5",
"versionType": "git"
},
{
"status": "affected",
"version": "16a544f1e013ba0660612f3fe35393b143b19a84",
"versionType": "git"
},
{
"status": "affected",
"version": "4.19.256",
"lessThan": "4.19.313",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.4.211",
"lessThan": "5.4.275",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.10.137",
"lessThan": "5.10.216",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.61",
"lessThan": "5.15.157",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.14.291",
"lessThan": "4.15",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.18.18",
"lessThan": "5.19",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.19.2",
"lessThan": "5.20",
"versionType": "semver"
}
],
"programFiles": [
"kernel/kprobes.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.313",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.275",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.216",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.157",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.87",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.28",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.8.7",
"versionType": "semver",
"lessThanOrEqual": "6.8.*"
},
{
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"kernel/kprobes.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-35955
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26554 · Revision 1
- Added to Heist Feed
- Publisher date