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CVE-2023-53362— bus: fsl-mc: don't assume child devices are all fsl-mc devices

EPSS 0.01% · P2
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I. Basic Information for CVE-2023-53362

Vulnerability Information
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Vulnerability Title
bus: fsl-mc: don't assume child devices are all fsl-mc devices
Source: NVD (National Vulnerability Database)
Vulnerability Description
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 : mc_send_command+0x24/0x1f0 lr : dprc_get_obj_region+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: mc_send_command+0x24/0x1f0 dprc_get_obj_region+0xfc/0x1c0 fsl_mc_device_add+0x340/0x590 fsl_mc_obj_device_add+0xd0/0xf8 dprc_scan_objects+0x1c4/0x340 dprc_scan_container+0x38/0x60 vfio_fsl_mc_probe+0x9c/0xf8 fsl_mc_driver_probe+0x24/0x70 really_probe+0xbc/0x2a8 __driver_probe_device+0x78/0xe0 device_driver_attach+0x30/0x68 bind_store+0xa8/0x130 drv_attr_store+0x24/0x38 sysfs_kf_write+0x44/0x60 kernfs_fop_write_iter+0x128/0x1b8 vfs_write+0x334/0x448 ksys_write+0x68/0xf0 __arm64_sys_write+0x1c/0x28 invoke_syscall+0x44/0x108 el0_svc_common.constprop.1+0x94/0xf8 do_el0_svc+0x38/0xb0 el0_svc+0x20/0x50 el0t_64_sync_handler+0x98/0xc0 el0t_64_sync+0x174/0x178 Code: aa0103f4 a9025bf5 d5384100 b9400801 (79401260) ---[ end trace 0000000000000000 ]---
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未正确检查设备类型，可能导致崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 3c28a76124b25882411f005924be73795b6ef078 ~ 5bd9dc3e767edf582be483be8d6bbc7433bd4cf8 -
LinuxLinux 6.1 -

II. Public POCs for CVE-2023-53362

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III. Intelligence Information for CVE-2023-53362

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Same Patch Batch · Linux · 2025-09-17 · 56 CVEs total

CVE-2022-50370i2c: designware: Fix handling of real but unexpected device interrupts
CVE-2022-50355staging: vt6655: fix some erroneous memory clean-up loops
CVE-2022-50358brcmfmac: return error when getting invalid max_flowrings from dongle
CVE-2022-50356net: sched: sfb: fix null pointer access issue when sfb_init() fails
CVE-2022-50357usb: dwc3: core: fix some leaks in probe
CVE-2022-50359media: cx88: Fix a null-ptr-deref bug in buffer_prepare()
CVE-2022-50354drm/amdkfd: Fix kfd_process_device_init_vm error handling
CVE-2022-50367fs: fix UAF/GPF bug in nilfs_mdt_destroy
CVE-2022-50368drm/msm/dsi: fix memory corruption with too many bridges
CVE-2022-50369drm/vkms: Fix null-ptr-deref in vkms_release()
CVE-2022-50366powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue
CVE-2022-50371led: qcom-lpg: Fix sleeping in atomic
CVE-2022-50372cifs: Fix memory leak when build ntlmssp negotiate blob failed
CVE-2022-50373fs: dlm: fix race in lowcomms
CVE-2022-50374Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
CVE-2023-53335RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
CVE-2023-53336media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings
CVE-2023-53337nilfs2: do not write dirty data after degenerating to read-only
CVE-2023-53338lwt: Fix return values of BPF xmit ops
CVE-2023-53339btrfs: fix BUG_ON condition in btrfs_cancel_balance

Showing top 20 of 56 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53362

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