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CVE-2025-40293— iommufd: Don't overflow during division for dirty tracking

EPSS 0.03% · P9
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I. Basic Information for CVE-2025-40293

Vulnerability Information
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Vulnerability Title
iommufd: Don't overflow during division for dirty tracking
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommufd: Don't overflow during division for dirty tracking If pgshift is 63 then BITS_PER_TYPE(*bitmap->bitmap) * pgsize will overflow to 0 and this triggers divide by 0. In this case the index should just be 0, so reorganize things to divide by shift and avoid hitting any overflows.
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，该漏洞源于除法溢出，可能导致除零错误。
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 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 ~ 07105e61882ff4a7d58db63cc5f9e90c6c60506c -
LinuxLinux 6.1 -

II. Public POCs for CVE-2025-40293

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III. Intelligence Information for CVE-2025-40293

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Same Patch Batch · Linux · 2025-12-08 · 82 CVEs total

CVE-2022-50630mm: hugetlb: fix UAF in hugetlb_handle_userfault
CVE-2023-53752net: deal with integer overflows in kmalloc_reserve()
CVE-2022-50627wifi: ath11k: fix monitor mode bringup crash
CVE-2022-50628drm/gud: Fix UBSAN warning
CVE-2022-50626media: dvb-usb: fix memory leak in dvb_usb_adapter_init()
CVE-2022-50623fpga: prevent integer overflow in dfl_feature_ioctl_set_irq()
CVE-2022-50622ext4: fix potential memory leak in ext4_fc_record_modified_inode()
CVE-2022-50621dm: verity-loadpin: Only trust verity targets with enforcement
CVE-2022-50620f2fs: fix to invalidate dcc->f2fs_issue_discard in error path
CVE-2022-50624net: netsec: fix error handling in netsec_register_mdio()
CVE-2022-50629wifi: rsi: Fix memory leak in rsi_coex_attach()
CVE-2023-53742kcsan: Avoid READ_ONCE() in read_instrumented_memory()
CVE-2023-53743PCI: Free released resource after coalescing
CVE-2023-53744soc: ti: pm33xx: Fix refcount leak in am33xx_pm_probe
CVE-2023-53745um: vector: Fix memory leak in vector_config
CVE-2023-53746s390/vfio-ap: fix memory leak in vfio_ap device driver
CVE-2023-53747vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF
CVE-2023-53748media: mediatek: vcodec: Fix potential array out-of-bounds in decoder queue_setup
CVE-2023-53750pinctrl: freescale: Fix a memory out of bounds when num_configs is 1
CVE-2023-53751cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname

Showing top 20 of 82 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-40293

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