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CVE-2022-48856— gianfar: ethtool: Fix refcount leak in gfar_get_ts_info

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gianfar模块在gfar_get_ts_info中，由于of_find_compatible_node函数返回的节点指针引用计数增加，需要在使用完毕后使用of_node_put函数释放。

AI Predicted 3.3 Difficulty: Trivial EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 7349a74ea75ca27606ead81df3ed67f1b32a94ba< 6263f2eb93a85ad7df504daf0c341a7fb6bbe8a6 affected
7349a74ea75ca27606ead81df3ed67f1b32a94ba< f7b3b520349193f8a82cca74daf366199e06add9 affected
7349a74ea75ca27606ead81df3ed67f1b32a94ba< 21044e679ed535345042d2023f7df0ca8e897e2a affected
7349a74ea75ca27606ead81df3ed67f1b32a94ba< f49f646f9ec296fc0afe7ae92c2bb47f23e3846c affected
7349a74ea75ca27606ead81df3ed67f1b32a94ba< 0e1b9a2078e07fb1e6e91bf8badfd89ecab1e848 affected
7349a74ea75ca27606ead81df3ed67f1b32a94ba< 2ac5b58e645c66932438bb021cb5b52097ce70b0 affected
4.18 affected
< 4.18 unaffected
… +6 more rows
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I. Basic Information for CVE-2022-48856

Vulnerability Information
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Vulnerability Title
gianfar: ethtool: Fix refcount leak in gfar_get_ts_info
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: gianfar: ethtool: Fix refcount leak in gfar_get_ts_info The of_find_compatible_node() function returns a node pointer with refcount incremented, We should use of_node_put() on it when done Add the missing of_node_put() to release the refcount.
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gianfar模块在gfar_get_ts_info中，由于of_find_compatible_node函数返回的节点指针引用计数增加，需要在使用完毕后使用of_node_put函数释放。
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 7349a74ea75ca27606ead81df3ed67f1b32a94ba ~ 6263f2eb93a85ad7df504daf0c341a7fb6bbe8a6 -
Linux Linux 4.18 -

II. Public POCs for CVE-2022-48856

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III. Intelligence Information for CVE-2022-48856

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Other References for CVE-2022-48856 (5)

Same Patch Batch · Linux · 2024-07-16 · 98 CVEs total

CVE-2022-48788 9.8 CRITICAL nvme-rdma: fix possible use-after-free in transport error_recovery work
CVE-2022-48789 9.8 CRITICAL nvme-tcp: fix possible use-after-free in transport error_recovery work
CVE-2022-48851 9.8 CRITICAL staging: gdm724x: fix use after free in gdm_lte_rx()
CVE-2022-48790 9.8 CRITICAL nvme: fix a possible use-after-free in controller reset during load
CVE-2022-48829 9.1 CRITICAL NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
CVE-2022-48828 9.1 CRITICAL NFSD: Fix ia_size underflow
CVE-2022-48785 8.8 HIGH ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()
CVE-2022-48782 8.8 HIGH mctp: fix use after free
CVE-2022-48830 8.8 HIGH can: isotp: fix potential CAN frame reception race in isotp_rcv()
CVE-2022-48864 8.8 HIGH vdpa/mlx5: add validation for VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command
CVE-2022-48791 7.8 HIGH scsi: pm8001: Fix use-after-free for aborted TMF sas_task
CVE-2022-48792 7.8 HIGH scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task
CVE-2022-48847 7.8 HIGH watch_queue: Fix filter limit check
CVE-2022-48839 7.8 HIGH net/packet: fix slab-out-of-bounds access in packet_recvmsg()
CVE-2022-48822 7.8 HIGH usb: f_fs: Fix use-after-free for epfile
CVE-2022-48821 7.8 HIGH misc: fastrpc: avoid double fput() on failed usercopy
CVE-2022-48816 7.8 HIGH SUNRPC: lock against ->sock changing during sysfs read
CVE-2022-48796 7.8 HIGH iommu: Fix potential use-after-free during probe
CVE-2022-48801 7.8 HIGH iio: buffer: Fix file related error handling in IIO_BUFFER_GET_FD_IOCTL
CVE-2024-41008 7.8 HIGH drm/amdgpu: change vm->task_info handling

Showing top 20 of 98 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48856

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