CVE-2023-53363— PCI: Fix use-after-free in pci_bus_release_domain_nr()
Quick assessment
Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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pci_bus_release_domain_nr函数中存在释放后重用问题。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 9
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f8b6bd6c04d4dfc4c200e6fa306e61e3b42ec5fc< 52b0343c7d628f37b38e3279ba585526b850ad3b |
affected |
db273126bf548a2dc611372e8f6a817b2b16b563< ad367516b1c09317111255ecfbf5e42c33e31918 |
affected | ||
ead4d69b3ef047b0f670511d81e9ced7ac876b44< fbf45385e3419b8698b5e0a434847072375cfec2 |
affected | ||
c14f7ccc9f5dcf9d06ddeec706f85405b2c80600< 07a75c0050e59c50f038cc5f4e2a3258c8f8c9d0 |
affected | ||
c14f7ccc9f5dcf9d06ddeec706f85405b2c80600< 30ba2d09edb5ea857a1473ae3d820911347ada62 |
affected | ||
6.2 |
affected | ||
< 6.2 |
unaffected | ||
6.2.12≤ 6.2.* |
unaffected | ||
| … +1 more rows | |||
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I. Basic Information for CVE-2023-53363
Vulnerability Information
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Vulnerability Title
PCI: Fix use-after-free in pci_bus_release_domain_nr()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
PCI: Fix use-after-free in pci_bus_release_domain_nr()
Commit c14f7ccc9f5d ("PCI: Assign PCI domain IDs by ida_alloc()")
introduced a use-after-free bug in the bus removal cleanup. The issue was
found with kfence:
[ 19.293351] BUG: KFENCE: use-after-free read in pci_bus_release_domain_nr+0x10/0x70
[ 19.302817] Use-after-free read at 0x000000007f3b80eb (in kfence-#115):
[ 19.309677] pci_bus_release_domain_nr+0x10/0x70
[ 19.309691] dw_pcie_host_deinit+0x28/0x78
[ 19.309702] tegra_pcie_deinit_controller+0x1c/0x38 [pcie_tegra194]
[ 19.309734] tegra_pcie_dw_probe+0x648/0xb28 [pcie_tegra194]
[ 19.309752] platform_probe+0x90/0xd8
...
[ 19.311457] kfence-#115: 0x00000000063a155a-0x00000000ba698da8, size=1072, cache=kmalloc-2k
[ 19.311469] allocated by task 96 on cpu 10 at 19.279323s:
[ 19.311562] __kmem_cache_alloc_node+0x260/0x278
[ 19.311571] kmalloc_trace+0x24/0x30
[ 19.311580] pci_alloc_bus+0x24/0xa0
[ 19.311590] pci_register_host_bridge+0x48/0x4b8
[ 19.311601] pci_scan_root_bus_bridge+0xc0/0xe8
[ 19.311613] pci_host_probe+0x18/0xc0
[ 19.311623] dw_pcie_host_init+0x2c0/0x568
[ 19.311630] tegra_pcie_dw_probe+0x610/0xb28 [pcie_tegra194]
[ 19.311647] platform_probe+0x90/0xd8
...
[ 19.311782] freed by task 96 on cpu 10 at 19.285833s:
[ 19.311799] release_pcibus_dev+0x30/0x40
[ 19.311808] device_release+0x30/0x90
[ 19.311814] kobject_put+0xa8/0x120
[ 19.311832] device_unregister+0x20/0x30
[ 19.311839] pci_remove_bus+0x78/0x88
[ 19.311850] pci_remove_root_bus+0x5c/0x98
[ 19.311860] dw_pcie_host_deinit+0x28/0x78
[ 19.311866] tegra_pcie_deinit_controller+0x1c/0x38 [pcie_tegra194]
[ 19.311883] tegra_pcie_dw_probe+0x648/0xb28 [pcie_tegra194]
[ 19.311900] platform_probe+0x90/0xd8
...
[ 19.313579] CPU: 10 PID: 96 Comm: kworker/u24:2 Not tainted 6.2.0 #4
[ 19.320171] Hardware name: /, BIOS 1.0-d7fb19b 08/10/2022
[ 19.325852] Workqueue: events_unbound deferred_probe_work_func
The stack trace is a bit misleading as dw_pcie_host_deinit() doesn't
directly call pci_bus_release_domain_nr(). The issue turns out to be in
pci_remove_root_bus() which first calls pci_remove_bus() which frees the
struct pci_bus when its struct device is released. Then
pci_bus_release_domain_nr() is called and accesses the freed struct
pci_bus. Reordering these fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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pci_bus_release_domain_nr函数中存在释放后重用问题。
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
II. Public POCs for CVE-2023-53363
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · Linux · 2025-09-17 · 56 CVEs total
| CVE-2022-50363 | 9.8 CRITICAL | skmsg: pass gfp argument to alloc_sk_msg() |
| CVE-2022-50373 | 9.8 CRITICAL | fs: dlm: fix race in lowcomms |
| CVE-2023-53360 | 9.8 CRITICAL | NFSv4.2: Rework scratch handling for READ_PLUS (again) |
| CVE-2023-53338 | 9.8 CRITICAL | lwt: Fix return values of BPF xmit ops |
| CVE-2023-53358 | 8.8 HIGH | ksmbd: fix racy issue under cocurrent smb2 tree disconnect |
| CVE-2022-50355 | 7.8 HIGH | staging: vt6655: fix some erroneous memory clean-up loops |
| CVE-2022-50354 | 7.8 HIGH | drm/amdkfd: Fix kfd_process_device_init_vm error handling |
| CVE-2023-53340 | 7.8 HIGH | net/mlx5: Collect command failures data only for known commands |
| CVE-2023-53354 | 7.8 HIGH | skbuff: skb_segment, Call zero copy functions before using skbuff frags |
| CVE-2022-50367 | 7.8 HIGH | fs: fix UAF/GPF bug in nilfs_mdt_destroy |
| CVE-2022-50368 | 7.8 HIGH | drm/msm/dsi: fix memory corruption with too many bridges |
| CVE-2022-50362 | 7.8 HIGH | dmaengine: hisilicon: Add multi-thread support for a DMA channel |
| CVE-2023-53335 | 7.5 HIGH | RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish() |
| CVE-2022-50365 | 7.5 HIGH | skbuff: Account for tail adjustment during pull operations |
| CVE-2022-50364 | i2c: mux: reg: check return value after calling platform_get_resource() | |
| CVE-2022-50374 | Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure | |
| CVE-2022-50372 | cifs: Fix memory leak when build ntlmssp negotiate blob failed | |
| CVE-2023-53336 | media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings | |
| CVE-2022-50370 | i2c: designware: Fix handling of real but unexpected device interrupts | |
| CVE-2022-50371 | led: qcom-lpg: Fix sleeping in atomic |
Showing top 20 of 56 CVEs. View all on vendor page → →
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Same vendor: Linux
-
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bpf: Infer zext_dst based on static register liveness analys -
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dm-pcache: reject a kset that overruns its segment -
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V. Comments for CVE-2023-53363
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