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CVE-2024-47739— padata: use integer wrap around to prevent deadlock on seq_nr overflow

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padata组件中对序列号溢出处理不当，可能导致死锁。

CVSS 7.5 · High EPSS 0.68% · P52

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux bfde23ce200e6d33291d29b9b8b60cc2f30f0805< 46c4079460f4dcaf445860679558eedef4e1bc91 affected
bfde23ce200e6d33291d29b9b8b60cc2f30f0805< 72164d5b648951684b1a593996b37a6083c61d7d affected
bfde23ce200e6d33291d29b9b8b60cc2f30f0805< ab205e1c3846326f162180e56825b4ba38ce9c30 affected
bfde23ce200e6d33291d29b9b8b60cc2f30f0805< 1b8cf11b3ca593a8802a51802cd0c28c38501428 affected
bfde23ce200e6d33291d29b9b8b60cc2f30f0805< 9e279e6c1f012b82628b89e1b9c65dbefa8ca25a affected
bfde23ce200e6d33291d29b9b8b60cc2f30f0805< 1bd712de96ad7167fe0d608e706cd60587579f16 affected
bfde23ce200e6d33291d29b9b8b60cc2f30f0805< 9a22b2812393d93d84358a760c347c21939029a6 affected
5.4 affected
… +8 more rows
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I. Basic Information for CVE-2024-47739

Vulnerability Information
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Vulnerability Title
padata: use integer wrap around to prevent deadlock on seq_nr overflow
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: padata: use integer wrap around to prevent deadlock on seq_nr overflow When submitting more than 2^32 padata objects to padata_do_serial, the current sorting implementation incorrectly sorts padata objects with overflowed seq_nr, causing them to be placed before existing objects in the reorder list. This leads to a deadlock in the serialization process as padata_find_next cannot match padata->seq_nr and pd->processed because the padata instance with overflowed seq_nr will be selected next. To fix this, we use an unsigned integer wrap around to correctly sort padata objects in scenarios with integer overflow.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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padata组件中对序列号溢出处理不当，可能导致死锁。
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 bfde23ce200e6d33291d29b9b8b60cc2f30f0805 ~ 46c4079460f4dcaf445860679558eedef4e1bc91 -
Linux Linux 5.4 -

II. Public POCs for CVE-2024-47739

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III. Intelligence Information for CVE-2024-47739

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Patches & Fixes for CVE-2024-47739 (4)

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

CVE-2022-48985 9.8 CRITICAL net: mana: Fix race on per-CQ variable napi work_done
CVE-2024-49855 9.8 CRITICAL nbd: fix race between timeout and normal completion
CVE-2024-50033 9.8 CRITICAL slip: make slhc_remember() more robust against malicious packets
CVE-2022-49003 9.8 CRITICAL nvme: fix SRCU protection of nvme_ns_head list
CVE-2024-47695 9.8 CRITICAL RDMA/rtrs-clt: Reset cid to con_num - 1 to stay in bounds
CVE-2024-50046 9.8 CRITICAL NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
CVE-2024-50047 9.8 CRITICAL smb: client: fix UAF in async decryption
CVE-2024-50043 9.8 CRITICAL nfsd: fix possible badness in FREE_STATEID
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-2024-49950 8.8 HIGH Bluetooth: L2CAP: Fix uaf in l2cap_connect
CVE-2024-49936 8.8 HIGH net/xen-netback: prevent UAF in xenvif_flush_hash()
CVE-2022-49017 8.8 HIGH tipc: re-fetch skb cb after tipc_msg_validate
CVE-2022-49015 8.8 HIGH net: hsr: Fix potential use-after-free
CVE-2024-49939 8.8 HIGH wifi: rtw89: avoid to add interface to list twice when SER
CVE-2024-50041 8.8 HIGH i40e: Fix macvlan leak by synchronizing access to mac_filter_hash
CVE-2024-49930 8.8 HIGH wifi: ath11k: fix array out-of-bound access in SoC stats
CVE-2022-48967 8.8 HIGH NFC: nci: Bounds check struct nfc_target arrays
CVE-2022-48964 8.8 HIGH ravb: Fix potential use-after-free in ravb_rx_gbeth()
CVE-2022-48962 8.8 HIGH net: hisilicon: Fix potential use-after-free in hisi_femac_rx()

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-2024-47739

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