CVE-2022-50775— RDMA/hns: Fix refcount leak in hns_roce_mmap
Possible ATT&CK Techniques 1AI
T1211 · Exploitation for StealthAffected Version Matrix 8
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0045e0d3f42ed7d05434bb5bc16acfc793ea4891< fa87cf2e756efe809ee8683d4f282f4de962dab6 | affected |
0045e0d3f42ed7d05434bb5bc16acfc793ea4891< 8abd2ff2256a2a99c11c7ecdcb5512429933620f | affected | ||
0045e0d3f42ed7d05434bb5bc16acfc793ea4891< cf6a05c8494a8ae7fec8e5f1229b45ca5b4bcd30 | affected | ||
5.17 | affected | ||
< 5.17 | unaffected | ||
6.1.16≤ 6.1.* | unaffected | ||
6.2.3≤ 6.2.* | unaffected | ||
6.3≤ * | unaffected |
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I. Basic Information for CVE-2022-50775
Vulnerability Information
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Vulnerability Title
RDMA/hns: Fix refcount leak in hns_roce_mmap
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix refcount leak in hns_roce_mmap rdma_user_mmap_entry_get_pgoff() takes the reference. Add missing rdma_user_mmap_entry_put() to release the reference. Acked-by Haoyue Xu <xuhaoyue1@hisilicon.com>
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，该漏洞源于未释放从rdma_user_mmap_entry_get_pgoff获取的引用，可能导致引用计数泄漏。
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-2022-50775
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2022-50775 (2)
Same Patch Batch · Linux · 2025-12-24 · 322 CVEs total
| CVE-2025-68741 | 9.8 CRITICAL | scsi: qla2xxx: Fix improper freeing of purex item |
| CVE-2023-53867 | 9.8 CRITICAL | ceph: fix potential use-after-free bug when trimming caps |
| CVE-2025-68726 | 9.8 CRITICAL | crypto: aead - Fix reqsize handling |
| CVE-2025-68745 | 9.8 CRITICAL | scsi: qla2xxx: Clear cmds after chip reset |
| CVE-2023-54094 | 9.8 CRITICAL | net: prevent skb corruption on frag list segmentation |
| CVE-2023-54090 | 9.8 CRITICAL | ixgbe: Fix panic during XDP_TX with > 64 CPUs |
| CVE-2023-54076 | 9.8 CRITICAL | smb: client: fix missed ses refcounting |
| CVE-2022-50717 | 9.8 CRITICAL | nvmet-tcp: add bounds check on Transfer Tag |
| CVE-2025-68359 | 9.8 CRITICAL | btrfs: fix double free of qgroup record after failure to add delayed ref head |
| CVE-2023-53996 | 9.3 CRITICAL | x86/sev: Make enc_dec_hypercall() accept a size instead of npages |
| CVE-2023-54071 | 8.8 HIGH | wifi: rtw88: use work to update rate to avoid RCU warning |
| CVE-2023-54120 | 8.8 HIGH | Bluetooth: Fix race condition in hidp_session_thread |
| CVE-2023-54043 | 8.8 HIGH | iommufd: Do not add the same hwpt to the ioas->hwpt_list twice |
| CVE-2022-50732 | 8.8 HIGH | staging: rtl8192u: Fix use after free in ieee80211_rx() |
| CVE-2023-54092 | 8.8 HIGH | KVM: s390: pv: fix index value of replaced ASCE |
| CVE-2023-54060 | 8.8 HIGH | iommufd: Set end correctly when doing batch carry |
| CVE-2025-68736 | 8.8 HIGH | landlock: Fix handling of disconnected directories |
| CVE-2023-54040 | 8.8 HIGH | ice: fix wrong fallback logic for FDIR |
| CVE-2023-53986 | 8.6 HIGH | mips: bmips: BCM6358: disable RAC flush for TP1 |
| CVE-2022-50746 | 8.4 HIGH | erofs: validate the extent length for uncompressed pclusters |
Showing top 20 of 322 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
V. Comments for CVE-2022-50775
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