CVE-2022-49766— netlink: Bounds-check struct nlmsgerr creation
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 6
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I. Basic Information for CVE-2022-49766
Vulnerability Information
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Vulnerability Title
netlink: Bounds-check struct nlmsgerr creation
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netlink: Bounds-check struct nlmsgerr creation In preparation for FORTIFY_SOURCE doing bounds-check on memcpy(), switch from __nlmsg_put to nlmsg_put(), and explain the bounds check for dealing with the memcpy() across a composite flexible array struct. Avoids this future run-time warning: memcpy: detected field-spanning write (size 32) of single field "&errmsg->msg" at net/netlink/af_netlink.c:2447 (size 16)
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，该漏洞源于边界检查不足，可能导致缓冲区溢出。
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-2022-49766
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Patches & Fixes for CVE-2022-49766 (2)
Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total
| CVE-2025-37750 | 9.8 CRITICAL | smb: client: fix UAF in decryption with multichannel |
| CVE-2025-37778 | 9.8 CRITICAL | ksmbd: Fix dangling pointer in krb_authenticate |
| CVE-2022-49770 | 9.8 CRITICAL | ceph: avoid putting the realm twice when decoding snaps fails |
| CVE-2022-49931 | 8.8 HIGH | IB/hfi1: Correctly move list in sc_disable() |
| CVE-2025-37776 | 8.8 HIGH | ksmbd: fix use-after-free in smb_break_all_levII_oplock() |
| CVE-2025-37777 | 8.8 HIGH | ksmbd: fix use-after-free in __smb2_lease_break_noti() |
| CVE-2025-37790 | 8.8 HIGH | net: mctp: Set SOCK_RCU_FREE |
| CVE-2022-49910 | 8.8 HIGH | Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu |
| CVE-2022-49886 | 8.4 HIGH | x86/tdx: Panic on bad configs that #VE on "private" memory access |
| CVE-2025-23159 | 8.4 HIGH | media: venus: hfi: add a check to handle OOB in sfr region |
| CVE-2025-37749 | 8.2 HIGH | net: ppp: Add bound checking for skb data on ppp_sync_txmung |
| CVE-2025-37765 | 7.8 HIGH | drm/nouveau: prime: fix ttm_bo_delayed_delete oops |
| CVE-2025-37779 | 7.8 HIGH | lib/iov_iter: fix to increase non slab folio refcount |
| CVE-2022-49920 | 7.8 HIGH | netfilter: nf_tables: netlink notifier might race to release objects |
| CVE-2022-49919 | 7.8 HIGH | netfilter: nf_tables: release flow rule object from commit path |
| CVE-2022-49921 | 7.8 HIGH | net: sched: Fix use after free in red_enqueue() |
| CVE-2025-37752 | 7.8 HIGH | net_sched: sch_sfq: move the limit validation |
| CVE-2025-37756 | 7.8 HIGH | net: tls: explicitly disallow disconnect |
| CVE-2025-37761 | 7.8 HIGH | drm/xe: Fix an out-of-bounds shift when invalidating TLB |
| CVE-2022-49804 | 7.8 HIGH | s390: avoid using global register for current_stack_pointer |
Showing top 20 of 245 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-2022-49766
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