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CVE-2022-48670— peci: cpu: Fix use-after-free in adev_release()

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，该漏洞源于函数adev_release()存在释放后重用漏洞。

AI Predicted 4.7 Difficulty: Easy EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux 93e1821c80f9460c8931dc4bc090ede794f966cd< c87f1f99e26ea4ae08cabe753ae98e5626bdba89 affected
93e1821c80f9460c8931dc4bc090ede794f966cd< 1c11289b34ab67ed080bbe0f1855c4938362d9cf affected
5.18 affected
< 5.18 unaffected
5.19.10≤ 5.19.* unaffected
6.0≤ * unaffected
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I. Basic Information for CVE-2022-48670

Vulnerability Information
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Vulnerability Title
peci: cpu: Fix use-after-free in adev_release()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: peci: cpu: Fix use-after-free in adev_release() When auxiliary_device_add() returns an error, auxiliary_device_uninit() is called, which causes refcount for device to be decremented and .release callback will be triggered. Because adev_release() re-calls auxiliary_device_uninit(), it will cause use-after-free: [ 1269.455172] WARNING: CPU: 0 PID: 14267 at lib/refcount.c:28 refcount_warn_saturate+0x110/0x15 [ 1269.464007] refcount_t: underflow; use-after-free.
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，该漏洞源于函数adev_release()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 93e1821c80f9460c8931dc4bc090ede794f966cd ~ c87f1f99e26ea4ae08cabe753ae98e5626bdba89 -
Linux Linux 5.18 -

II. Public POCs for CVE-2022-48670

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III. Intelligence Information for CVE-2022-48670

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Other References for CVE-2022-48670 (2)

Same Patch Batch · Linux · 2024-05-03 · 25 CVEs total

CVE-2022-48673 9.8 CRITICAL net/smc: Fix possible access to freed memory in link clear
CVE-2022-48686 9.8 CRITICAL nvme-tcp: fix UAF when detecting digest errors
CVE-2022-48697 9.8 CRITICAL nvmet: fix a use-after-free
CVE-2022-48674 7.8 HIGH erofs: fix pcluster use-after-free on UP platforms
CVE-2022-48695 7.8 HIGH scsi: mpt3sas: Fix use-after-free warning
CVE-2022-48702 7.8 HIGH ALSA: emu10k1: Fix out of bounds access in snd_emu10k1_pcm_channel_alloc()
CVE-2022-48692 7.5 HIGH RDMA/srp: Set scmnd->result only when scmnd is not NULL
CVE-2022-48694 7.5 HIGH RDMA/irdma: Fix drain SQ hang with no completion
CVE-2022-48696 7.1 HIGH regmap: spi: Reserve space for register address/padding
CVE-2022-48705 wifi: mt76: mt7921e: fix crash in chip reset fail
CVE-2022-48671 cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()
CVE-2022-48704 drm/radeon: add a force flush to delay work when radeon
CVE-2022-48690 ice: Fix DMA mappings leak
CVE-2022-48703 thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR
CVE-2022-48701 ALSA: usb-audio: Fix an out-of-bounds bug in __snd_usb_parse_audio_interface()
CVE-2022-48699 sched/debug: fix dentry leak in update_sched_domain_debugfs
CVE-2022-48698 drm/amd/display: fix memory leak when using debugfs_lookup()
CVE-2022-48693 soc: brcmstb: pm-arm: Fix refcount leak and __iomem leak bugs
CVE-2022-48691 netfilter: nf_tables: clean up hook list when offload flags check fails
CVE-2022-48689 tcp: TX zerocopy should not sense pfmemalloc status

Showing top 20 of 25 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48670

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