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CVE-2022-49010— hwmon: (coretemp) Check for null before removing sysfs attrs

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hwmon模块在coretemp驱动中未在移除sysfs属性前进行空值检查。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1562

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 199e0de7f5df31a4fc485d4aaaf8a07718252ace< fb503d077ff7b43913503eaf72995d1239028b99 affected
199e0de7f5df31a4fc485d4aaaf8a07718252ace< 070d5ea4a0592a37ad96ce7f7b6b024f90bb009f affected
199e0de7f5df31a4fc485d4aaaf8a07718252ace< 280110db1a7d62ad635b103bafc3ae96e8bef75c affected
199e0de7f5df31a4fc485d4aaaf8a07718252ace< 89eecabe6a47403237f45aafd7d24f93cb973653 affected
199e0de7f5df31a4fc485d4aaaf8a07718252ace< f06e0cd01eab954bd5f2190c9faa79bb5357e05b affected
199e0de7f5df31a4fc485d4aaaf8a07718252ace< 7692700ac818866d138a8de555130a6e70e6ac16 affected
199e0de7f5df31a4fc485d4aaaf8a07718252ace< ae6c8b6e5d5628df1c475c0a8fca1465e205c95b affected
199e0de7f5df31a4fc485d4aaaf8a07718252ace< a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a affected
… +10 more rows
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I. Basic Information for CVE-2022-49010

Vulnerability Information
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Vulnerability Title
hwmon: (coretemp) Check for null before removing sysfs attrs
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (coretemp) Check for null before removing sysfs attrs If coretemp_add_core() gets an error then pdata->core_data[indx] is already NULL and has been kfreed. Don't pass that to sysfs_remove_group() as that will crash in sysfs_remove_group(). [Shortened for readability] [91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label' <cpu offline> [91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188 [91855.165103] #PF: supervisor read access in kernel mode [91855.194506] #PF: error_code(0x0000) - not-present page [91855.224445] PGD 0 P4D 0 [91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI ... [91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80 ... [91855.796571] Call Trace: [91855.810524] coretemp_cpu_offline+0x12b/0x1dd [coretemp] [91855.841738] ? coretemp_cpu_online+0x180/0x180 [coretemp] [91855.871107] cpuhp_invoke_callback+0x105/0x4b0 [91855.893432] cpuhp_thread_fun+0x8e/0x150 ... Fix this by checking for NULL first.
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hwmon模块在coretemp驱动中未在移除sysfs属性前进行空值检查。
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 199e0de7f5df31a4fc485d4aaaf8a07718252ace ~ fb503d077ff7b43913503eaf72995d1239028b99 -
Linux Linux 3.0 -

II. Public POCs for CVE-2022-49010

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III. Intelligence Information for CVE-2022-49010

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Patches & Fixes for CVE-2022-49010 (6)

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

CVE-2024-50033 9.8 CRITICAL slip: make slhc_remember() more robust against malicious packets
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-2022-49003 9.8 CRITICAL nvme: fix SRCU protection of nvme_ns_head list
CVE-2024-50043 9.8 CRITICAL nfsd: fix possible badness in FREE_STATEID
CVE-2024-50047 9.8 CRITICAL smb: client: fix UAF in async decryption
CVE-2024-50046 9.8 CRITICAL NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
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-2022-48962 8.8 HIGH net: hisilicon: Fix potential use-after-free in hisi_femac_rx()
CVE-2024-49950 8.8 HIGH Bluetooth: L2CAP: Fix uaf in l2cap_connect
CVE-2024-49939 8.8 HIGH wifi: rtw89: avoid to add interface to list twice when SER
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-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-2024-50041 8.8 HIGH i40e: Fix macvlan leak by synchronizing access to mac_filter_hash
CVE-2024-49936 8.8 HIGH net/xen-netback: prevent UAF in xenvif_flush_hash()
CVE-2022-48954 8.8 HIGH s390/qeth: fix use-after-free in hsci

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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