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CVE-2023-52840— Input: synaptics-rmi4 - fix use after free in rmi_unregister_function()

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Input模块存在释放后重用漏洞。

AI Predicted 7.8 Difficulty: Hard EPSS 0.24% · P14

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 24d28e4f1271cb2f91613dada8f2acccd00eff56< 2f236d8638f5b43e0c72919a6a27fe286c32053f affected
24d28e4f1271cb2f91613dada8f2acccd00eff56< 50d12253666195a14c6cd2b81c376e2dbeedbdff affected
24d28e4f1271cb2f91613dada8f2acccd00eff56< 6c71e065befb2fae8f1461559b940c04e1071bd5 affected
24d28e4f1271cb2f91613dada8f2acccd00eff56< 303766bb92c5c225cf40f9bbbe7e29749406e2f2 affected
24d28e4f1271cb2f91613dada8f2acccd00eff56< 7082b1fb5321037bc11ba1cf2d7ed23c6b2b521f affected
24d28e4f1271cb2f91613dada8f2acccd00eff56< cc56c4d17721dcb10ad4e9c9266e449be1462683 affected
24d28e4f1271cb2f91613dada8f2acccd00eff56< c8e639f5743cf4b01f8c65e0df075fe4d782b585 affected
24d28e4f1271cb2f91613dada8f2acccd00eff56< eb988e46da2e4eae89f5337e047ce372fe33d5b1 affected
… +10 more rows
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I. Basic Information for CVE-2023-52840

Vulnerability Information
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Vulnerability Title
Input: synaptics-rmi4 - fix use after free in rmi_unregister_function()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() The put_device() calls rmi_release_function() which frees "fn" so the dereference on the next line "fn->num_of_irqs" is a use after free. Move the put_device() to the end to fix this.
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Input模块存在释放后重用漏洞。
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 24d28e4f1271cb2f91613dada8f2acccd00eff56 ~ 2f236d8638f5b43e0c72919a6a27fe286c32053f -
Linux Linux 4.18 -

II. Public POCs for CVE-2023-52840

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III. Intelligence Information for CVE-2023-52840

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Other References for CVE-2023-52840 (8)

Same Patch Batch · Linux · 2024-05-21 · 361 CVEs total

CVE-2021-47427 9.8 CRITICAL scsi: iscsi: Fix iscsi_task use after free
CVE-2021-47328 9.8 CRITICAL scsi: iscsi: Fix conn use after free during resets
CVE-2023-52732 9.8 CRITICAL ceph: blocklist the kclient when receiving corrupted snap trace
CVE-2023-52741 9.8 CRITICAL cifs: Fix use-after-free in rdata->read_into_pages()
CVE-2021-47232 9.8 CRITICAL can: j1939: fix Use-after-Free, hold skb ref while in use
CVE-2023-52755 9.8 CRITICAL ksmbd: fix slab out of bounds write in smb_inherit_dacl()
CVE-2021-47378 9.8 CRITICAL nvme-rdma: destroy cm id before destroy qp to avoid use after free
CVE-2023-52769 8.8 HIGH wifi: ath12k: fix htt mlo-offset event locking
CVE-2021-47308 8.8 HIGH scsi: libfc: Fix array index out of bound exception
CVE-2023-52801 8.8 HIGH iommufd: Fix missing update of domains_itree after splitting iopt_area
CVE-2023-52798 8.8 HIGH wifi: ath11k: fix dfs radar event locking
CVE-2023-52846 8.8 HIGH hsr: Prevent use after free in prp_create_tagged_frame()
CVE-2023-52790 8.8 HIGH swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC
CVE-2023-52776 8.8 HIGH wifi: ath12k: fix dfs-radar and temperature event locking
CVE-2021-47388 8.8 HIGH mac80211: fix use-after-free in CCMP/GCMP RX
CVE-2021-47390 8.8 HIGH KVM: x86: Fix stack-out-of-bounds memory access from ioapic_write_indirect()
CVE-2021-47352 8.4 HIGH virtio-net: Add validation for used length
CVE-2023-52829 8.4 HIGH wifi: ath12k: fix possible out-of-bound write in ath12k_wmi_ext_hal_reg_caps()
CVE-2021-47240 8.4 HIGH net: qrtr: fix OOB Read in qrtr_endpoint_post
CVE-2021-47244 8.2 HIGH mptcp: Fix out of bounds when parsing TCP options

Showing top 20 of 361 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52840

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