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CVE-2022-49743— ovl: Use "buf" flexible array for memcpy() destination

EPSS 0.02% · P4
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I. Basic Information for CVE-2022-49743

Vulnerability Information
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Vulnerability Title
ovl: Use "buf" flexible array for memcpy() destination
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ovl: Use "buf" flexible array for memcpy() destination The "buf" flexible array needs to be the memcpy() destination to avoid false positive run-time warning from the recent FORTIFY_SOURCE hardening: memcpy: detected field-spanning write (size 93) of single field "&fh->fb" at fs/overlayfs/export.c:799 (size 21)
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，该漏洞源于错误使用flexible数组作为memcpy目标。
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 cbe7fba8edfc8cb8e621599e376f8ac5c224fa72 ~ 012cdef22000f3104e4fa8224ad29fde509b8caf -
LinuxLinux 5.5 -

II. Public POCs for CVE-2022-49743

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III. Intelligence Information for CVE-2022-49743

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Same Patch Batch · Linux · 2025-03-27 · 124 CVEs total

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CVE-2023-52994acpi: Fix suspend with Xen PV
CVE-2023-52993x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL
CVE-2023-52992bpf: Skip task with pid=1 in send_signal_common()
CVE-2023-52991net: fix NULL pointer in skb_segment_list
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CVE-2023-52988ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path()
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CVE-2023-52985arm64: dts: imx8mm-verdin: Do not power down eth-phy
CVE-2023-52984net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices
CVE-2023-52973vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF
CVE-2022-49761btrfs: always report error in run_one_delayed_ref()
CVE-2022-49760mm/hugetlb: fix PTE marker handling in hugetlb_change_protection()
CVE-2023-52974scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress

Showing top 20 of 124 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49743

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