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CVE-2024-47737— nfsd: call cache_put if xdr_reserve_space returns NULL

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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nfsd子系统中在xdr_reserve_space返回NULL时未正确释放缓存，可能导致资源泄露。

AI Predicted 3.3 Difficulty: Hard EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux ddd1ea56367202f6c99135cd59de7a97af4c4ffd< 3e8081ebff12bec1347deaceb6bce0765cce54df affected
ddd1ea56367202f6c99135cd59de7a97af4c4ffd< c6b16e700cf4d959af524bd9d3978407ff7ce462 affected
ddd1ea56367202f6c99135cd59de7a97af4c4ffd< 9f03f0016ff797932551881c7e06ae50e9c39134 affected
ddd1ea56367202f6c99135cd59de7a97af4c4ffd< 9803ab882d565a8fb2dde5999d98866d1c499dfd affected
ddd1ea56367202f6c99135cd59de7a97af4c4ffd< 81821617312988096f5deccf0f7da6f888e98056 affected
ddd1ea56367202f6c99135cd59de7a97af4c4ffd< a1afbbb5276f943ad7173d0b4c626b8c75a260da affected
ddd1ea56367202f6c99135cd59de7a97af4c4ffd< e32ee6a61041925d1a05c14d10352dcfce9ef029 affected
ddd1ea56367202f6c99135cd59de7a97af4c4ffd< 8d0765f86135e27f0bb5c950c136495719b4c834 affected
… +12 more rows
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I. Basic Information for CVE-2024-47737

Vulnerability Information
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Vulnerability Title
nfsd: call cache_put if xdr_reserve_space returns NULL
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nfsd: call cache_put if xdr_reserve_space returns NULL If not enough buffer space available, but idmap_lookup has triggered lookup_fn which calls cache_get and returns successfully. Then we missed to call cache_put here which pairs with cache_get. Reviwed-by: Jeff Layton <jlayton@kernel.org>
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nfsd子系统中在xdr_reserve_space返回NULL时未正确释放缓存，可能导致资源泄露。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux ddd1ea56367202f6c99135cd59de7a97af4c4ffd ~ 3e8081ebff12bec1347deaceb6bce0765cce54df -
Linux Linux 3.16 -

II. Public POCs for CVE-2024-47737

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III. Intelligence Information for CVE-2024-47737

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Patches & Fixes for CVE-2024-47737 (2)

Same Patch Batch · Linux · 2024-10-21 · 372 CVEs total

CVE-2024-50043 9.8 CRITICAL nfsd: fix possible badness in FREE_STATEID
CVE-2022-48985 9.8 CRITICAL net: mana: Fix race on per-CQ variable napi work_done
CVE-2024-47695 9.8 CRITICAL RDMA/rtrs-clt: Reset cid to con_num - 1 to stay in bounds
CVE-2024-50033 9.8 CRITICAL slip: make slhc_remember() more robust against malicious packets
CVE-2024-49855 9.8 CRITICAL nbd: fix race between timeout and normal completion
CVE-2024-50047 9.8 CRITICAL smb: client: fix UAF in async decryption
CVE-2024-50046 9.8 CRITICAL NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
CVE-2022-49003 9.8 CRITICAL nvme: fix SRCU protection of nvme_ns_head list
CVE-2024-49996 9.4 CRITICAL cifs: Fix buffer overflow when parsing NFS reparse points
CVE-2024-47678 9.4 CRITICAL icmp: change the order of rate limits
CVE-2022-49017 8.8 HIGH tipc: re-fetch skb cb after tipc_msg_validate
CVE-2024-50029 8.8 HIGH Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync
CVE-2024-50041 8.8 HIGH i40e: Fix macvlan leak by synchronizing access to mac_filter_hash
CVE-2024-49939 8.8 HIGH wifi: rtw89: avoid to add interface to list twice when SER
CVE-2022-48960 8.8 HIGH net: hisilicon: Fix potential use-after-free in hix5hd2_rx()
CVE-2022-48962 8.8 HIGH net: hisilicon: Fix potential use-after-free in hisi_femac_rx()
CVE-2022-48964 8.8 HIGH ravb: Fix potential use-after-free in ravb_rx_gbeth()
CVE-2022-49015 8.8 HIGH net: hsr: Fix potential use-after-free
CVE-2022-48967 8.8 HIGH NFC: nci: Bounds check struct nfc_target arrays
CVE-2024-49930 8.8 HIGH wifi: ath11k: fix array out-of-bound access in SoC stats

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-47737

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