CVE-2023-52984— net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices
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I. Basic Information for CVE-2023-52984
Vulnerability Information
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Vulnerability Title
net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices The probe() function is only used for the DP83822 PHY, leaving the private data pointer uninitialized for the smaller DP83825/26 models. While all uses of the private data structure are hidden in 82822 specific callbacks, configuring the interrupt is shared across all models. This causes a NULL pointer dereference on the smaller PHYs as it accesses the private data unchecked. Verifying the pointer avoids that.
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net phy dp83822组件在DP83825/26设备上未初始化私有数据指针，导致空指针解引用。
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-2023-52984
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Same Patch Batch · Linux · 2025-03-27 · 124 CVEs total
| CVE-2023-52983 | block, bfq: fix uaf for bfqq in bic_set_bfqq() | |
| CVE-2023-52998 | net: fec: Use page_pool_put_full_page when freeing rx buffers | |
| CVE-2023-52999 | net: fix UaF in netns ops registration error path | |
| CVE-2023-52997 | ipv4: prevent potential spectre v1 gadget in ip_metrics_convert() | |
| CVE-2023-52996 | ipv4: prevent potential spectre v1 gadget in fib_metrics_match() | |
| CVE-2023-52995 | riscv/kprobe: Fix instruction simulation of JALR | |
| CVE-2023-52994 | acpi: Fix suspend with Xen PV | |
| CVE-2023-52993 | x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL | |
| CVE-2023-52992 | bpf: Skip task with pid=1 in send_signal_common() | |
| CVE-2023-52991 | net: fix NULL pointer in skb_segment_list | |
| CVE-2023-52989 | firewire: fix memory leak for payload of request subaction to IEC 61883-1 FCP region | |
| CVE-2023-52988 | ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path() | |
| CVE-2023-52987 | ASoC: SOF: ipc4-mtrace: prevent underflow in sof_ipc4_priority_mask_dfs_write() | |
| CVE-2023-52986 | bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener | |
| CVE-2023-52985 | arm64: dts: imx8mm-verdin: Do not power down eth-phy | |
| CVE-2023-52982 | fscache: Use wait_on_bit() to wait for the freeing of relinquished volume | |
| CVE-2022-49761 | btrfs: always report error in run_one_delayed_ref() | |
| CVE-2022-49760 | mm/hugetlb: fix PTE marker handling in hugetlb_change_protection() | |
| CVE-2022-49759 | VMCI: Use threaded irqs instead of tasklets | |
| CVE-2023-52973 | vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF |
Showing top 20 of 124 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2023-52984
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