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CVE-2025-38482— comedi: das6402: Fix bit shift out of bounds

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，该漏洞源于未验证IRQ号范围，可能导致越界位移。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.16% · P6

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 79e5e6addbb18bf56075f0ff552094a28636dd03< a15e9c175f783298c4ee48146be6841335400406 affected
79e5e6addbb18bf56075f0ff552094a28636dd03< de8da1063cce9234d55c8270d9bdf4cf84411c80 affected
79e5e6addbb18bf56075f0ff552094a28636dd03< 73f34d609397805c20d6b2ef5c07a4cbf7c4d63a affected
79e5e6addbb18bf56075f0ff552094a28636dd03< a18a42e77545afcacd6a2b8d9fc16191b87454df affected
79e5e6addbb18bf56075f0ff552094a28636dd03< 8a3637027ceeba4ca5e500b23cb7d24c25592513 affected
79e5e6addbb18bf56075f0ff552094a28636dd03< 3eab654f5d199ecd45403c6588cda63e491fcfca affected
79e5e6addbb18bf56075f0ff552094a28636dd03< 4a3c18cde02e35aba87e0ad5672b3e1c72dda5a4 affected
79e5e6addbb18bf56075f0ff552094a28636dd03< 70f2b28b5243df557f51c054c20058ae207baaac affected
… +10 more rows
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I. Basic Information for CVE-2025-38482

Vulnerability Information
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Vulnerability Title
comedi: das6402: Fix bit shift out of bounds
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: comedi: das6402: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: /* IRQs 2,3,5,6,7, 10,11,15 are valid for "enhanced" mode */ if ((1 << it->options[1]) & 0x8cec) { However, `it->options[i]` is an unchecked `int` value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring `it->options[1]` to be within bounds before proceeding with the original test. Valid `it->options[1]` values that select the IRQ will be in the range [1,15]. The value 0 explicitly disables the use of interrupts.
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，该漏洞源于未验证IRQ号范围，可能导致越界位移。
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 79e5e6addbb18bf56075f0ff552094a28636dd03 ~ a15e9c175f783298c4ee48146be6841335400406 -
Linux Linux 3.15 -

II. Public POCs for CVE-2025-38482

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III. Intelligence Information for CVE-2025-38482

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Same Patch Batch · Linux · 2025-07-28 · 29 CVEs total

CVE-2025-38490 9.8 CRITICAL net: libwx: remove duplicate page_pool_put_full_page()
CVE-2025-38488 9.8 CRITICAL smb: client: fix use-after-free in crypt_message when using async crypto
CVE-2025-38471 9.8 CRITICAL tls: always refresh the queue when reading sock
CVE-2025-38472 9.8 CRITICAL netfilter: nf_conntrack: fix crash due to removal of uninitialised entry
CVE-2025-38476 9.8 CRITICAL rpl: Fix use-after-free in rpl_do_srh_inline().
CVE-2025-38495 8.8 HIGH HID: core: ensure the allocated report buffer can contain the reserved report ID
CVE-2025-38491 8.2 HIGH mptcp: make fallback action and fallback decision atomic
CVE-2025-38478 7.8 HIGH comedi: Fix initialization of data for instructions that write to subdevice
CVE-2025-38485 7.8 HIGH iio: accel: fxls8962af: Fix use after free in fxls8962af_fifo_flush
CVE-2025-38486 7.8 HIGH soundwire: Revert "soundwire: qcom: Add set_channel_map api support"
CVE-2025-38484 7.8 HIGH iio: backend: fix out-of-bound write
CVE-2025-38494 7.8 HIGH HID: core: do not bypass hid_hw_raw_request
CVE-2025-38477 7.8 HIGH net/sched: sch_qfq: Fix race condition on qfq_aggregate
CVE-2025-38475 7.8 HIGH smc: Fix various oops due to inet_sock type confusion.
CVE-2025-38470 7.8 HIGH net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime
CVE-2025-38493 tracing/osnoise: Fix crash in timerlat_dump_stack()
CVE-2025-38492 netfs: Fix race between cache write completion and ALL_QUEUED being set
CVE-2025-38497 usb: gadget: configfs: Fix OOB read on empty string write
CVE-2025-38496 dm-bufio: fix sched in atomic context
CVE-2025-38468 net/sched: Return NULL when htb_lookup_leaf encounters an empty rbtree

Showing top 20 of 29 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38482

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