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CVE-2023-52493— bus: mhi: host: Drop chan lock before queuing buffers

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，该漏洞源于通道的read lock和write lock存在安全漏洞。

AI Predicted 5.5 Difficulty: Easy EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 1d3173a3bae7039b765a0956e3e4bf846dbaacb8< 20a6dea2d1c68d4e03c6bb50bc12e72e226b5c0e affected
1d3173a3bae7039b765a0956e3e4bf846dbaacb8< 6e4c84316e2b70709f0d00c33ba3358d9fc8eece affected
1d3173a3bae7039b765a0956e3e4bf846dbaacb8< 3c5ec66b4b3f6816f3a6161538672e389e537690 affected
1d3173a3bae7039b765a0956e3e4bf846dbaacb8< eaefb9464031215d63c0a8a7e2bfaa00736aa17e affected
1d3173a3bae7039b765a0956e3e4bf846dbaacb8< b8eff20d87092e14cac976d057cb0aea2f1d0830 affected
1d3173a3bae7039b765a0956e3e4bf846dbaacb8< 01bd694ac2f682fb8017e16148b928482bc8fa4b affected
5.7 affected
< 5.7 unaffected
… +6 more rows
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I. Basic Information for CVE-2023-52493

Vulnerability Information
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Vulnerability Title
bus: mhi: host: Drop chan lock before queuing buffers
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Drop chan lock before queuing buffers Ensure read and write locks for the channel are not taken in succession by dropping the read lock from parse_xfer_event() such that a callback given to client can potentially queue buffers and acquire the write lock in that process. Any queueing of buffers should be done without channel read lock acquired as it can result in multiple locks and a soft lockup. [mani: added fixes tag and cc'ed stable]
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，该漏洞源于通道的read lock和write lock存在安全漏洞。
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 1d3173a3bae7039b765a0956e3e4bf846dbaacb8 ~ 20a6dea2d1c68d4e03c6bb50bc12e72e226b5c0e -
Linux Linux 5.7 -

II. Public POCs for CVE-2023-52493

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2023-52493

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Mailing List Discussions for CVE-2023-52493 (1)

Other References for CVE-2023-52493 (6)

Same Patch Batch · Linux · 2024-02-29 · 53 CVEs total

CVE-2023-52480 9.8 CRITICAL ksmbd: fix race condition between session lookup and expire
CVE-2023-52478 8.8 HIGH HID: logitech-hidpp: Fix kernel crash on receiver USB disconnect
CVE-2023-52479 8.8 HIGH ksmbd: fix uaf in smb20_oplock_break_ack
CVE-2024-26620 8.2 HIGH s390/vfio-ap: always filter entire AP matrix
CVE-2021-47060 7.8 HIGH KVM: Stop looking for coalesced MMIO zones if the bus is destroyed
CVE-2023-52486 7.8 HIGH drm: Don't unref the same fb many times by mistake due to deadlock handling
CVE-2023-52483 7.8 HIGH mctp: perform route lookups under a RCU read-side lock
CVE-2021-47061 7.8 HIGH KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU
CVE-2021-47068 7.8 HIGH net/nfc: fix use-after-free llcp_sock_bind/connect
CVE-2023-52491 7.8 HIGH media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_
CVE-2024-26608 7.8 HIGH ksmbd: fix global oob in ksmbd_nl_policy
CVE-2024-26610 7.8 HIGH wifi: iwlwifi: fix a memory corruption
CVE-2024-26614 7.8 HIGH tcp: make sure init the accept_queue's spinlocks once
CVE-2024-26617 7.8 HIGH fs/proc/task_mmu: move mmu notification mechanism inside mm lock
CVE-2024-26611 7.5 HIGH xsk: fix usage of multi-buffer BPF helpers for ZC XDP
CVE-2023-52497 7.1 HIGH erofs: fix lz4 inplace decompression
CVE-2021-47055 7.1 HIGH mtd: require write permissions for locking and badblock ioctls
CVE-2021-47066 7.1 HIGH async_xor: increase src_offs when dropping destination page
CVE-2021-47020 soundwire: stream: fix memory leak in stream config error path
CVE-2021-46959 spi: Fix use-after-free with devm_spi_alloc_*

Showing top 20 of 53 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52493

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