CVE-2025-39826— net: rose: convert 'use' field to refcount_t
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 12
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< fb07156cc0742ba4e93dfcc84280c011d05b301f | affected |
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< f8c29fc437d03a98fb075c31c5be761cc8326284 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 0085b250fcc79f900c82a69980ec2f3e1871823b | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 203e4f42596ede31498744018716a3db6dbb7f51 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< d860d1faa6b2ce3becfdb8b0c2b048ad31800061 | affected | ||
2.6.12 | affected | ||
< 2.6.12 | unaffected | ||
6.1.150≤ 6.1.* | unaffected | ||
| … +4 more rows | |||
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I. Basic Information for CVE-2025-39826
Vulnerability Information
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Vulnerability Title
net: rose: convert 'use' field to refcount_t
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: rose: convert 'use' field to refcount_t The 'use' field in struct rose_neigh is used as a reference counter but lacks atomicity. This can lead to race conditions where a rose_neigh structure is freed while still being referenced by other code paths. For example, when rose_neigh->use becomes zero during an ioctl operation via rose_rt_ioctl(), the structure may be removed while its timer is still active, potentially causing use-after-free issues. This patch changes the type of 'use' from unsigned short to refcount_t and updates all code paths to use rose_neigh_hold() and rose_neigh_put() which operate reference counts atomically.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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rose_neigh结构的use字段缺乏原子性，可能导致释放后重用问题。
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-2025-39826
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-09-16 · 115 CVEs total
| CVE-2022-50350 | 9.8 CRITICAL | scsi: target: iscsi: Fix a race condition between login_work and the login thread |
| CVE-2025-39806 | 8.8 HIGH | HID: multitouch: fix slab out-of-bounds access in mt_report_fixup() |
| CVE-2023-53305 | 8.8 HIGH | Bluetooth: L2CAP: Fix use-after-free |
| CVE-2023-53297 | 8.8 HIGH | Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp |
| CVE-2025-39827 | 8.8 HIGH | net: rose: include node references in rose_neigh refcount |
| CVE-2023-53315 | 8.8 HIGH | wifi: ath11k: Fix SKB corruption in REO destination ring |
| CVE-2023-53322 | 8.8 HIGH | scsi: qla2xxx: Wait for io return on terminate rport |
| CVE-2025-39809 | 8.4 HIGH | HID: intel-thc-hid: intel-quicki2c: Fix ACPI dsd ICRS/ISUB length |
| CVE-2023-53333 | 8.2 HIGH | netfilter: conntrack: dccp: copy entire header to stack buffer, not just basic one |
| CVE-2022-50341 | 7.8 HIGH | cifs: fix oops during encryption |
| CVE-2025-39810 | 7.8 HIGH | bnxt_en: Fix memory corruption when FW resources change during ifdown |
| CVE-2023-53311 | 7.8 HIGH | nilfs2: fix use-after-free of nilfs_root in dirtying inodes via iput |
| CVE-2023-53314 | 7.8 HIGH | fbdev/ep93xx-fb: Do not assign to struct fb_info.dev |
| CVE-2023-53286 | 7.8 HIGH | RDMA/mlx5: Return the firmware result upon destroying QP/RQ |
| CVE-2025-39815 | 7.8 HIGH | RISC-V: KVM: fix stack overrun when loading vlenb |
| CVE-2025-39818 | 7.8 HIGH | HID: intel-thc-hid: intel-thc: Fix incorrect pointer arithmetic in I2C regs save |
| CVE-2025-39836 | 7.8 HIGH | efi: stmm: Fix incorrect buffer allocation method |
| CVE-2025-39821 | 7.8 HIGH | perf: Avoid undefined behavior from stopping/starting inactive events |
| CVE-2022-50339 | 7.8 HIGH | Bluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev() |
| CVE-2023-53274 | 7.8 HIGH | clk: mediatek: mt8183: Add back SSPM related clocks |
Showing top 20 of 115 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-68450
btrfs: free mapping node on duplicate reloc root insert - CVE-2026-68449
ata: sata_dwc_460ex: fix infinite loop in NCQ tag completion - CVE-2026-68448
ovl: check access to copy_file_range source with src mounter - CVE-2026-68447
drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to B - CVE-2026-68446
drm/vmwgfx: Validate vmw_surface_metadata::array_size
Same vendor: Linux
- CVE-2026-68450
btrfs: free mapping node on duplicate reloc root insert - CVE-2026-68449
ata: sata_dwc_460ex: fix infinite loop in NCQ tag completion - CVE-2026-68448
ovl: check access to copy_file_range source with src mounter - CVE-2026-68447
drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to B - CVE-2026-68446
drm/vmwgfx: Validate vmw_surface_metadata::array_size
V. Comments for CVE-2025-39826
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