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CVE-2021-46953— ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure

AI Predicted 4.3 Difficulty: Moderate EPSS 0.24% · P15

Affected Version Matrix 16

VendorProductVersion RangeStatus
LinuxLinuxca9ae5ec4ef0ed13833b03297ab319676965492c< c3385a9122f8db15b453e07bfc88117fce7f3724affected
ca9ae5ec4ef0ed13833b03297ab319676965492c< 7b2162db1498c71962a4bb2f776fa4e76d4d305baffected
ca9ae5ec4ef0ed13833b03297ab319676965492c< 504632a3577a049dd9bb7aabae5b4476f9c586b4affected
ca9ae5ec4ef0ed13833b03297ab319676965492c< e0f2d86481eaa83df33b0793f75212919db7a19daffected
ca9ae5ec4ef0ed13833b03297ab319676965492c< 42e69521ee1fa5abf21f478d147d06bbfe6bf6a8affected
ca9ae5ec4ef0ed13833b03297ab319676965492c< 596e079c362ac17ed02aa1b99fdc444d62072a01affected
ca9ae5ec4ef0ed13833b03297ab319676965492c< 1ecd5b129252249b9bc03d7645a7bda512747277affected
4.12affected
… +8 more rows
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I. Basic Information for CVE-2021-46953

Vulnerability Information
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Vulnerability Title
ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure When failing the driver probe because of invalid firmware properties, the GTDT driver unmaps the interrupt that it mapped earlier. However, it never checks whether the mapping of the interrupt actially succeeded. Even more, should the firmware report an illegal interrupt number that overlaps with the GIC SGI range, this can result in an IPI being unmapped, and subsequent fireworks (as reported by Dann Frazier). Rework the driver to have a slightly saner behaviour and actually check whether the interrupt has been mapped before unmapping things.
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，该漏洞源于当固件属性无效而导致驱动程序探测失败时，GTDT 驱动程序会取消映射其之前映射的中断。
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 ca9ae5ec4ef0ed13833b03297ab319676965492c ~ c3385a9122f8db15b453e07bfc88117fce7f3724 -
LinuxLinux 4.12 -

II. Public POCs for CVE-2021-46953

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III. Intelligence Information for CVE-2021-46953

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Other References for CVE-2021-46953 (7)

Same Patch Batch · Linux · 2024-02-27 · 67 CVEs total

CVE-2021-46950md/raid1: properly indicate failure when ending a failed write request
CVE-2021-46971perf/core: Fix unconditional security_locked_down() call
CVE-2021-46970bus: mhi: pci_generic: Remove WQ_MEM_RECLAIM flag from state workqueue
CVE-2021-46969bus: mhi: core: Fix invalid error returning in mhi_queue
CVE-2021-46957riscv/kprobe: fix kernel panic when invoking sys_read traced by kprobe
CVE-2021-46956virtiofs: fix memory leak in virtio_fs_probe()
CVE-2021-46955openvswitch: fix stack OOB read while fragmenting IPv4 packets
CVE-2021-46954net/sched: sch_frag: fix stack OOB read while fragmenting IPv4 packets
CVE-2021-46952NFS: fs_context: validate UDP retrans to prevent shift out-of-bounds
CVE-2021-46951tpm: efi: Use local variable for calculating final log size
CVE-2021-46958btrfs: fix race between transaction aborts and fsyncs leading to use-after-free
CVE-2021-46949sfc: farch: fix TX queue lookup in TX flush done handling
CVE-2021-46948sfc: farch: fix TX queue lookup in TX event handling
CVE-2021-46947sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues
CVE-2021-46945ext4: always panic when errors=panic is specified
CVE-2021-46944media: staging/intel-ipu3: Fix memory leak in imu_fmt
CVE-2021-46943media: staging/intel-ipu3: Fix set_fmt error handling
CVE-2021-46942io_uring: fix shared sqpoll cancellation hangs
CVE-2021-46941usb: dwc3: core: Do core softreset when switch mode
CVE-2021-46940tools/power turbostat: Fix offset overflow issue in index converting

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-46953

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