CVE-2023-53362
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53362
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53362.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-53362
- Downstream
- Related
- Published
- 2025-09-17T14:56:51.728Z
- Modified
- 2025-11-20T01:11:22.285708Z
- Summary
- bus: fsl-mc: don't assume child devices are all fsl-mc devices
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bus: fsl-mc: don't assume child devices are all fsl-mc devices
Changes in VFIO caused a pseudo-device to be created as child of fsl-mc devices causing a crash [1] when trying to bind a fsl-mc device to VFIO. Fix this by checking the device type when enumerating fsl-mc child devices.
[1] Modules linked in: Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP CPU: 6 PID: 1289 Comm: sh Not tainted 6.2.0-rc5-00047-g7c46948a6e9c #2 Hardware name: NXP Layerscape LX2160ARDB (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mcsendcommand+0x24/0x1f0 lr : dprcgetobjregion+0xfc/0x1c0 sp : ffff80000a88b900 x29: ffff80000a88b900 x28: ffff48a9429e1400 x27: 00000000000002b2 x26: ffff48a9429e1718 x25: 0000000000000000 x24: 0000000000000000 x23: ffffd59331ba3918 x22: ffffd59331ba3000 x21: 0000000000000000 x20: ffff80000a88b9b8 x19: 0000000000000000 x18: 0000000000000001 x17: 7270642f636d2d6c x16: 73662e3030303030 x15: ffffffffffffffff x14: ffffd59330f1d668 x13: ffff48a8727dc389 x12: ffff48a8727dc386 x11: 0000000000000002 x10: 00008ceaf02f35d4 x9 : 0000000000000012 x8 : 0000000000000000 x7 : 0000000000000006 x6 : ffff80000a88bab0 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000a88b9e8 x2 : ffff80000a88b9e8 x1 : 0000000000000000 x0 : ffff48a945142b80 Call trace: mcsendcommand+0x24/0x1f0 dprcgetobjregion+0xfc/0x1c0 fslmcdeviceadd+0x340/0x590 fslmcobjdeviceadd+0xd0/0xf8 dprcscanobjects+0x1c4/0x340 dprcscancontainer+0x38/0x60 vfiofslmcprobe+0x9c/0xf8 fslmcdriverprobe+0x24/0x70 reallyprobe+0xbc/0x2a8 _driverprobedevice+0x78/0xe0 devicedriverattach+0x30/0x68 bindstore+0xa8/0x130 drvattrstore+0x24/0x38 sysfskfwrite+0x44/0x60 kernfsfopwriteiter+0x128/0x1b8 vfswrite+0x334/0x448 ksyswrite+0x68/0xf0 _arm64syswrite+0x1c/0x28 invokesyscall+0x44/0x108 el0svccommon.constprop.1+0x94/0xf8 doel0svc+0x38/0xb0 el0svc+0x20/0x50 el0t64synchandler+0x98/0xc0 el0t64_sync+0x174/0x178 Code: aa0103f4 a9025bf5 d5384100 b9400801 (79401260) ---[ end trace 0000000000000000 ]---
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3c28a76124b25882411f005924be73795b6ef078Fixed5bd9dc3e767edf582be483be8d6bbc7433bd4cf8
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3c28a76124b25882411f005924be73795b6ef078Fixed8bdd5c21ec02835bd445d022f4c23195aff407d2
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3c28a76124b25882411f005924be73795b6ef078Fixed303c9c63abb9390e906052863f82bb4e9824e5c0
Affected versions
v6.*
Database specific
vanir_signatures
[
{
"deprecated": false,
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"101033088838025560301681056649412494760",
"197598890224616610949010410745494783869",
"279673766919342076350112955351146153422",
"262416680693599199337941320543269344263",
"246069531071497756524637093869418245816",
"66384889348002128537958163976294858291",
"173775733402993991855947708481874387974"
]
},
"id": "CVE-2023-53362-b58a0185",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5bd9dc3e767edf582be483be8d6bbc7433bd4cf8",
"target": {
"file": "drivers/bus/fsl-mc/dprc-driver.c"
}
},
{
"deprecated": false,
"signature_version": "v1",
"digest": {
"function_hash": "82617837442264092889144085866343020906",
"length": 104.0
},
"id": "CVE-2023-53362-ccc7da9f",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5bd9dc3e767edf582be483be8d6bbc7433bd4cf8",
"target": {
"file": "drivers/bus/fsl-mc/dprc-driver.c",
"function": "__fsl_mc_device_remove"
}
},
{
"deprecated": false,
"signature_version": "v1",
"digest": {
"function_hash": "323993561318420783745541753094640673214",
"length": 375.0
},
"id": "CVE-2023-53362-e9db86d1",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5bd9dc3e767edf582be483be8d6bbc7433bd4cf8",
"target": {
"file": "drivers/bus/fsl-mc/dprc-driver.c",
"function": "__fsl_mc_device_remove_if_not_in_mc"
}
}
]