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CVE-2022-48770— bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()

EPSS 0.03% · P10
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I. Basic Information for CVE-2022-48770

Vulnerability Information
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Vulnerability Title
bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack() task_pt_regs() can return NULL on powerpc for kernel threads. This is then used in __bpf_get_stack() to check for user mode, resulting in a kernel oops. Guard against this by checking return value of task_pt_regs() before trying to obtain the call chain.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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 bpf 模块 bpf_get_task_stack 方法存在空指针取消引用。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 ~ ff6bdc205fd0a83bd365405d4e31fb5905826996 -
LinuxLinux 5.9 -

II. Public POCs for CVE-2022-48770

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III. Intelligence Information for CVE-2022-48770

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Same Patch Batch · Linux · 2024-06-20 · 67 CVEs total

CVE-2022-48750hwmon: (nct6775) Fix crash in clear_caseopen
CVE-2022-48768tracing/histogram: Fix a potential memory leak for kstrdup()
CVE-2022-48769efi: runtime: avoid EFIv2 runtime services on Apple x86 machines
CVE-2022-48767ceph: properly put ceph_string reference after async create attempt
CVE-2022-48756drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable
CVE-2022-48755powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06
CVE-2022-48754phylib: fix potential use-after-free
CVE-2022-48753block: fix memory leak in disk_register_independent_access_ranges
CVE-2022-48752powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending
CVE-2022-48751net/smc: Transitional solution for clcsock race issue
CVE-2022-48757net: fix information leakage in /proc/net/ptype
CVE-2022-48748net: bridge: vlan: fix memory leak in __allowed_ingress
CVE-2022-48749drm/msm/dpu: invalid parameter check in dpu_setup_dspp_pcc
CVE-2022-48747block: Fix wrong offset in bio_truncate()
CVE-2022-48745net/mlx5: Use del_timer_sync in fw reset flow of halting poll
CVE-2022-48746net/mlx5e: Fix handling of wrong devices during bond netevent
CVE-2022-48744net/mlx5e: Avoid field-overflowing memcpy()
CVE-2022-48743net: amd-xgbe: Fix skb data length underflow
CVE-2022-48742rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
CVE-2022-48741ovl: fix NULL pointer dereference in copy up warning

Showing top 20 of 67 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48770

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