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Review reviewHigh

CVE-2025-38239

Linux Linux, linux kernel, debian linux

In the Linux kernel, the following vulnerability has been resolved: scsi: megaraid_sas: Fix invalid node index On a system with DRAM interleave enabled, out-of-bound access is detected: megaraid_sas 0000:3f:00.0: requested/available msix 128/128 poll_queue 0 ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in ./arch/x86/include/asm/topology.h:72:28 index -1 is out of range for type 'cpumask *[1024]' dump_stack_lvl+0x5d/0x80 ubsan_epilogue+0x5/0x2b __ubsan_handle_out_of_bounds.cold+0x46/0x4b megasas_alloc_irq_vectors+0x149/0x190 [megaraid_sas] megasas_probe_one.cold+0xa4...

CVSS
7.8
EPSS
0.15%
4.47% percentile
CISA KEV
Not listed
Published
2025.07.09
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.15%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: scsi: megaraid_sas: Fix invalid node index On a system with DRAM interleave enabled, out-of-bound access is detected: megaraid_sas 0000:3f:00.0: requested/available msix 128/128 poll_queue 0 ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in ./arch/x86/include/asm/topology.h:72:28 index -1 is out of range for type 'cpumask *[1024]' dump_stack_lvl+0x5d/0x80 ubsan_epilogue+0x5/0x2b __ubsan_handle_out_of_bounds.cold+0x46/0x4b megasas_alloc_irq_vectors+0x149/0x190 [megaraid_sas] megasas_probe_one.cold+0xa4...

Affected product and versions

Product
Linux Linux, linux kernel, debian linux
Affected versions
>= 8049da6f3943d0ac51931b8064b2e4769a69a967 < f1064b3532192e987ab17be7281d5fee36fd25e1, >= 8049da6f3943d0ac51931b8064b2e4769a69a967 < bf2c1643abc3b2507d56bb6c22bf9897272f8a35, >= 8049da6f3943d0ac51931b8064b2e4769a69a967 < 19a47c966deb36624843b7301f0373a3dc541a05, >= 8049da6f3943d0ac51931b8064b2e4769a69a967 < 074efb35552556a4b3b25eedab076d5dc24a8199, >= 8049da6f3943d0ac51931b8064b2e4769a69a967 < 752eb816b55adb0673727ba0ed96609a17895654, >= 5.17, >= 5.17 < 6.1.143, >= 6.2 < 6.6.96, >= 6.7 < 6.12.36, >= 6.13 < 6.15.5, 6.16, 11.0
Fixed versions
6.1.143, 6.6.96, 6.12.36, 6.15.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel, debian linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-129
CVE-2025-38239 — Linux Linux, linux kernel, debian linux | SECUFOCUS NOW