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CVE-2024-49981— media: venus: fix use after free bug in venus_remove due to race condition

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，该漏洞源于在venus_remove函数中由于竞争条件导致的释放后重用问题，可能允许攻击者通过精心设计的输入触发错误处理程序，从而破坏系统内存。

CVSS 7.8 · High EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1207 · Rogue Domain Controller

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux af2c3834c8ca7cc65d15592ac671933df8848115< 5098b9e6377577fe13d03e1d8914930f014a3314 affected
af2c3834c8ca7cc65d15592ac671933df8848115< 63bbe26471ebdcc3c20bb4cc3950d666279ad658 affected
af2c3834c8ca7cc65d15592ac671933df8848115< 60b6968341a6dd5353554f3e72db554693a128a5 affected
af2c3834c8ca7cc65d15592ac671933df8848115< bf6be32e2d39f6301ff1831e249d32a8744ab28a affected
af2c3834c8ca7cc65d15592ac671933df8848115< 2a541fcc0bd2b05a458e9613376df1289ec11621 affected
af2c3834c8ca7cc65d15592ac671933df8848115< b0686aedc5f1343442d044bd64eeac7e7a391f4e affected
af2c3834c8ca7cc65d15592ac671933df8848115< d925e9f7fb5a2dbefd1a73fc01061f38c7becd4c affected
af2c3834c8ca7cc65d15592ac671933df8848115< 10941d4f99a5a34999121b314afcd9c0a1c14f15 affected
… +12 more rows
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I. Basic Information for CVE-2024-49981

Vulnerability Information
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Vulnerability Title
media: venus: fix use after free bug in venus_remove due to race condition
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: venus: fix use after free bug in venus_remove due to race condition in venus_probe, core->work is bound with venus_sys_error_handler, which is used to handle error. The code use core->sys_err_done to make sync work. The core->work is started in venus_event_notify. If we call venus_remove, there might be an unfished work. The possible sequence is as follows: CPU0 CPU1 |venus_sys_error_handler venus_remove | hfi_destroy | venus_hfi_destroy | kfree(hdev); | |hfi_reinit |venus_hfi_queues_reinit |//use hdev Fix it by canceling the work in venus_remove.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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，该漏洞源于在venus_remove函数中由于竞争条件导致的释放后重用问题，可能允许攻击者通过精心设计的输入触发错误处理程序，从而破坏系统内存。
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 af2c3834c8ca7cc65d15592ac671933df8848115 ~ 5098b9e6377577fe13d03e1d8914930f014a3314 -
Linux Linux 4.13 -

II. Public POCs for CVE-2024-49981

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III. Intelligence Information for CVE-2024-49981

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Patches & Fixes for CVE-2024-49981 (9)

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

CVE-2024-49855 9.8 CRITICAL nbd: fix race between timeout and normal completion
CVE-2024-47695 9.8 CRITICAL RDMA/rtrs-clt: Reset cid to con_num - 1 to stay in bounds
CVE-2022-48985 9.8 CRITICAL net: mana: Fix race on per-CQ variable napi work_done
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-2024-50033 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-2024-49996 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-2024-49939 8.8 HIGH wifi: rtw89: avoid to add interface to list twice when SER
CVE-2022-48962 8.8 HIGH net: hisilicon: Fix potential use-after-free in hisi_femac_rx()
CVE-2022-48960 8.8 HIGH net: hisilicon: Fix potential use-after-free in hix5hd2_rx()
CVE-2022-48954 8.8 HIGH s390/qeth: fix use-after-free in hsci
CVE-2024-50029 8.8 HIGH Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync
CVE-2024-49930 8.8 HIGH wifi: ath11k: fix array out-of-bound access in SoC stats
CVE-2024-49982 8.8 HIGH aoe: fix the potential use-after-free problem in more places
CVE-2024-47721 8.8 HIGH wifi: rtw89: remove unused C2H event ID RTW89_MAC_C2H_FUNC_READ_WOW_CAM to prevent out-of-
CVE-2024-49950 8.8 HIGH Bluetooth: L2CAP: Fix uaf in l2cap_connect
CVE-2024-47724 8.8 HIGH wifi: ath11k: use work queue to process beacon tx event

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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