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Review reviewHigh

CVE-2024-38576

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: rcu: Fix buffer overflow in print_cpu_stall_info() The rcuc-starvation output from print_cpu_stall_info() might overflow the buffer if there is a huge difference in jiffies difference. The situation might seem improbable, but computers sometimes get very confused about time, which can result in full-sized integers, and, in this case, buffer overflow. Also, the unsigned jiffies difference is printed using %ld, which is normally for signed integers. This is intentional for debugging purposes, but it is not obvious from the co...

CVSS
7
EPSS
0.26%
17.1% percentile
CISA KEV
Not listed
Published
2024.06.19
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.26%
Technical severityCVSS 7

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: rcu: Fix buffer overflow in print_cpu_stall_info() The rcuc-starvation output from print_cpu_stall_info() might overflow the buffer if there is a huge difference in jiffies difference. The situation might seem improbable, but computers sometimes get very confused about time, which can result in full-sized integers, and, in this case, buffer overflow. Also, the unsigned jiffies difference is printed using %ld, which is normally for signed integers. This is intentional for debugging purposes, but it is not obvious from the co...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 245a62982502255314b63dd2c4daaedd1cd595a6 < e2228ed3fe7aa838fba87c79a76fb1ad9ea47138, >= 245a62982502255314b63dd2c4daaedd1cd595a6 < afb39909bfb5c08111f99e21bf5be7505f59ff1c, >= 245a62982502255314b63dd2c4daaedd1cd595a6 < 9351e1338539cb7f319ffc1210fa9b2aa27384b5, >= 245a62982502255314b63dd2c4daaedd1cd595a6 < 4c3e2ef4d8ddd313c8ce3ac30505940bea8d6257, >= 245a62982502255314b63dd2c4daaedd1cd595a6 < 3758f7d9917bd7ef0482c4184c0ad673b4c4e069, >= 6.0, >= 6.0 < 6.1.93, >= 6.2 < 6.6.33, >= 6.7 < 6.8.12, >= 6.9 < 6.9.3
Fixed versions
6.1.93, 6.6.33, 6.8.12, 6.9.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel 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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-120
CVE-2024-38576 — Linux Linux, linux kernel | SECUFOCUS NOW