CVE-2022-49704— 9p: fix fid refcount leak in v9fs_vfs_get_link
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 8
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 6636b6dcc3db2258cd0585b8078c1c225c4b6dde< f0126bcaee81dabc1926012126aa74caa03a4c6e | affected |
6636b6dcc3db2258cd0585b8078c1c225c4b6dde< e7b6d622bd812013eb39c8f4cd65b7ee8ede1e02 | affected | ||
6636b6dcc3db2258cd0585b8078c1c225c4b6dde< e5690f263208c5abce7451370b7786eb25b405eb | affected | ||
5.11 | affected | ||
< 5.11 | unaffected | ||
5.15.51≤ 5.15.* | unaffected | ||
5.18.8≤ 5.18.* | unaffected | ||
5.19≤ * | unaffected |
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2022-49704
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
9p: fix fid refcount leak in v9fs_vfs_get_link
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: 9p: fix fid refcount leak in v9fs_vfs_get_link we check for protocol version later than required, after a fid has been obtained. Just move the version check earlier.
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9p协议在获取链接时未正确处理fid引用计数。
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-2022-49704
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2022-49704
请登录查看更多情报信息。
Patches & Fixes for CVE-2022-49704 (3)
Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total
| CVE-2022-49149 | 9.8 CRITICAL | rxrpc: Fix call timer start racing with call destruction |
| CVE-2022-49561 | 9.8 CRITICAL | netfilter: conntrack: re-fetch conntrack after insertion |
| CVE-2022-49362 | 9.8 CRITICAL | NFSD: Fix potential use-after-free in nfsd_file_put() |
| CVE-2022-49201 | 9.8 CRITICAL | ibmvnic: fix race between xmit and reset |
| CVE-2022-49194 | 9.8 CRITICAL | net: bcmgenet: Use stronger register read/writes to assure ordering |
| CVE-2022-49093 | 9.8 CRITICAL | skbuff: fix coalescing for page_pool fragment recycling |
| CVE-2022-49260 | 9.8 CRITICAL | crypto: hisilicon/sec - fix the aead software fallback for engine |
| CVE-2022-49418 | 9.8 CRITICAL | NFSv4: Fix free of uninitialized nfs4_label on referral lookup. |
| CVE-2022-49094 | 9.8 CRITICAL | net/tls: fix slab-out-of-bounds bug in decrypt_internal |
| CVE-2022-49407 | 9.8 CRITICAL | dlm: fix plock invalid read |
| CVE-2022-49280 | 9.8 CRITICAL | NFSD: prevent underflow in nfssvc_decode_writeargs() |
| CVE-2022-49356 | 9.8 CRITICAL | SUNRPC: Trap RDMA segment overflows |
| CVE-2022-49058 | 9.1 CRITICAL | cifs: potential buffer overflow in handling symlinks |
| CVE-2022-49500 | 8.8 HIGH | wl1251: dynamically allocate memory used for DMA |
| CVE-2022-49535 | 8.8 HIGH | scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI |
| CVE-2022-49114 | 8.8 HIGH | scsi: libfc: Fix use after free in fc_exch_abts_resp() |
| CVE-2022-49470 | 8.8 HIGH | Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event |
| CVE-2022-49111 | 8.8 HIGH | Bluetooth: Fix use after free in hci_send_acl |
| CVE-2022-49238 | 8.8 HIGH | ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855 |
| CVE-2022-49519 | 8.8 HIGH | ath10k: skip ath10k_halt during suspend for driver state RESTARTING |
Showing top 20 of 706 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-2022-49704
No comments yet